Materiały źródłowe

• #1 Rickets guidance: part I—diagnostic workup

  https://pmc.ncbi.nlm.nih.gov/articles/PMC9307538/

  Rickets is a disease of the growing child arising from alterations in calcium and phosphate homeostasis resulting in impaired apoptosis of hypertrophic chondrocytes in the growth plate. […] The diagnosis of rickets is based on the presence of these typical clinical symptoms and radiological findings on X-rays of the wrist or knee, showing metaphyseal fraying and widening of growth plates, in conjunction with elevated serum levels of alkaline phosphatase. […] The diagnostic approach to rickets is primarily based on medical history, biochemical tests and radiography, which is followed, if necessary, by genetic tests. […] The diagnosis of rickets is based on typical clinical symptoms (e.g., widened wrists, frontal bossing, leg deformities, waddling gait, muscle weakness, and growth failure) and radiological findings (e.g., metaphyseal fraying and widening of growth plates) in the presence of elevated serum ALP levels.

• #1 Rickets – Diagnosis & treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/rickets/diagnosis-treatment/drc-20351949

  During the exam, the healthcare professional typically will gently press on your child’s bones, checking for irregularities. […] Diagnosing rickets in babies can be challenging. Rickets may be harder to identify as bone and muscle changes often are not detected until a child starts to walk. […] For children of all ages, X-rays of the affected bones can reveal bone deformities. Blood and urine tests can confirm a diagnosis of rickets and also monitor the progress of treatment.

• #1 Rickets – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK562285/

  Rickets is a condition characterized by a defect in mineralization of the epiphyseal plates. […] In order to avoid long term complications, rickets must be promptly diagnosed and aggressively treated. […] If the rickets is clinically suspected, biochemical tests and radiological images are the next steps to confirm the diagnosis. […] The most important laboratory marker to diagnose the rickets is serum alkaline phosphatase (ALP), which is typically high as this is a disease of abnormal mineralization and increased osteoblastic activity. […] The combination of positive clinical signs, relevant laboratory findings (high ALP, and either hypocalcemia or hypophosphatemia), and typical radiological findings confirm the diagnosis of rickets.

• #1 Rickets guidance: part I—diagnostic workup

  https://pmc.ncbi.nlm.nih.gov/articles/PMC9307538/

  The biochemical workup is based on assessment of serum phosphate, (ionized) calcium, creatinine, bicarbonate, ALP, PTH, 25(OH)D, 1,25(OH)2D, plasma FGF23 (if available) and an assessment of the renal tubular function. […] The differential diagnosis of rickets can be straightforward, e.g., an infant presenting with typical clinical symptoms and a history of low calcium intake and lack of vitamin D prophylaxis suggests nutritional rickets, but can be tricky in a child with a rare case of hereditary rickets, especially when presenting with mild symptoms and concomitant decreased vitamin D levels, which is not uncommon. […] The proposed diagnostic algorithm is followed, 25(OH)D values should be assessed in patients presenting with calcipenic rickets, as suggested by elevated PTH levels.

• #1 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Rickets-Diagnosis.aspx

  Rickets is a disease of the growing bones, characterized by defective mineralization of the osseous matrix and epiphyseal cartilage, which stems from a lack of calcium and phosphorous metabolism. The condition is traditionally caused by a quantitative or qualitative lack of vitamin D. […] Thorough medical history, careful physical examination, and adequate interpretation of laboratory and radiographic findings are pivotal steps for establishing a correct diagnosis. […] When resources are available, laboratory and imaging techniques should be used for confirming the diagnosis and etiology of the disease. […] The most common laboratory findings in nutritional rickets (i.e. due to vitamin D deficiency) are decreased levels of serum calcium, serum phosphorus, calcidiol, calcitriol, and urinary calcium, as well as increased levels of serum parathyroid hormone, alkaline phosphatase, and urinary phosphorus. If both serum inorganic phosphorus and parathyroid hormone levels are normal, the diagnosis of rickets is unlikely.

• #1 Rickets: Not a Disease of the Past | AAFP

  https://www.aafp.org/pubs/afp/issues/2006/0815/p619.html

  Rickets develops when growing bones fail to mineralize. In most cases, the diagnosis is established with a thorough history and physical examination and confirmed by laboratory evaluation. […] Nutritional rickets is suspected and confirmed with laboratory and radiographic evaluations. Levels of serum alkaline phosphatase and parathyroid hormone are elevated, and calcidiol (25[OH]D3) is decreased. […] Early diagnosis is essential because morbidity can be minimized if children are treated before eight months of age. […] An anteroposterior radiograph of rapidly growing skeletal areas, such as the knee or wrist, is most helpful in diagnosing rickets. […] Laboratory investigation may include serum levels of calcium (total and ionized with serum albumin), phosphorus, alkaline phosphatase, parathyroid hormone, urea nitrogen, creatinine, and calcidiol.

• #1 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Rickets-Diagnosis.aspx

  The earliest radiographic findings of rickets consist of slight axial widening at the growth plate, which is followed by a decrease in the density of the metaphyseal side of the growth plate. As the disease progresses, the widening of the growth plate increases, while the zone of provisional calcification becomes irregular. […] Classic radiographic findings are fraying and widening of the metaphysis, widening of the distal physis, and angular deformities of the arm and leg bones.

• #1 Rickets Imaging: Practice Essentials, Radiography

  https://emedicine.medscape.com/article/412862-overview

  Vitamin D deficiency results in rickets in children with growing bones and causes osteomalacia in adults with completed growth and closed growth plates. By definition, rickets is found only in children before closure of the growth plates, while osteomalacia occurs in persons of any age. Any child with rickets also has osteomalacia, but the reverse is not necessarily true. […] The diagnosis of nutritional rickets is made on the basis of history, physical examination, and biochemical testing and is confirmed by radiographs. […] Plain radiography of the ametaphyseal sites (wrists and ankles) is usually performed to confirm the diagnosis. […] In more advanced stages of rickets, radiographic changes are pathognomonic; however, the underlying cause needs to be established using clinical and biochemical assessments. False-negative findings can occur in the early phase of disease.

• #1 Rickets: Symptoms, Diagnosis, and Treatments

  https://www.healthline.com/health/rickets

  Rickets is most common in children who are between 6 and 36 months old. […] Your doctor may be able to diagnose rickets by performing a physical examination. They will check for tenderness or pain in the bones by lightly pressing on them. Your doctor may also order certain tests to help make a rickets diagnosis, including: blood tests to measure the levels of calcium and phosphate in the blood, bone X-rays to check for bone deformities. […] In rare cases, a bone biopsy will be performed. This involves the removal of a very small section of bone, which will be sent to a laboratory for analysis.

• #1 Overview of rickets in children – UpToDate

  https://www.uptodate.com/contents/overview-of-rickets-in-children

  INTRODUCTION Normal bone growth and mineralization require adequate calcium and phosphate, the two major nutritional elements that constitute the crystalline component of bone. Deficient mineralization can result in rickets and/or osteomalacia. Rickets refers to deficient mineralization at the growth plate, as well as architectural disruption of this structure. Osteomalacia refers to impaired mineralization of the bone matrix. Rickets and osteomalacia usually occur together as long as the growth plates are open; only osteomalacia occurs after the growth plates have fused. […] An overview of the pathogenesis, clinical presentation, and the differential diagnosis of rickets is presented here. The etiology and treatment of calcipenic and phosphopenic rickets are discussed separately. […] TYPES OF RICKETS Mineralization defects are classified according to the predominant mineral deficiency:

• #1 Overview of rickets in children – UpToDate

  https://www.uptodate.com/contents/overview-of-rickets-in-children

  Calcipenic rickets is caused by calcium deficiency, which usually is due to insufficient intake of vitamin D or failure to metabolize dietary vitamin D into its active form. In some cases, it is caused by insufficient intake or absorption of calcium in the setting of normal vitamin D levels. Calcipenic rickets may be associated with low serum calcium levels but also occurs in the setting of normocalcemia. […] Phosphopenic rickets is characterized by low serum levels of phosphorus, usually caused by renal phosphate wasting and, less commonly, by nutritional phosphorus deficiency.

• #1

  https://link.springer.com/article/10.1007/s00467-021-05328-w

  Serum Pi levels are decreased in most forms of rickets, and tend to be even more decreased in patients with phosphopenic rickets compared to calcipenic rickets, as the designations already suggest. […] Elevated serum ALP levels confirm the diagnosis of rickets in patients with clinical and radiological signs of rickets.

• #1

  https://link.springer.com/article/10.1007/s00467-021-05328-w

  The differential diagnosis of rickets can be straightforward, e.g., an infant presenting with typical clinical symptoms and a history of low calcium intake and lack of vitamin D prophylaxis suggests nutritional rickets, but can be tricky in a child with a rare case of hereditary rickets, especially when presenting with mild symptoms and concomitant decreased vitamin D levels, which is not uncommon. […] The use of the diagnostic algorithm based on patient history, clinical presentation, laboratory and imaging studies, as well as its pitfalls, are outlined in the following section. […] A detailed medical history, including dietary intake and medication, as well as family history, is essential in order to establish the mode of inheritance. […] A detailed examination, including assessment of height and sitting height, in order to detect a disproportionate short stature (short legs and normal trunk length), presence of limb deformities (genu varum and genu valgum), and thickened wrists and ankles (widened metaphysis), and enlarged costochondral junctions of the rib (rachitic rosary)) should be undertaken.

• #1 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-019-0152-5

  X-linked hypophosphataemia (XLH) is the most common cause of inherited phosphate wasting and is associated with severe complications such as rickets, lower limb deformities, pain, poor mineralization of the teeth and disproportionate short stature in children as well as hyperparathyroidism, osteomalacia, enthesopathies, osteoarthritis and pseudofractures in adults. […] Because of its rarity, the diagnosis and specific treatment of XLH are frequently delayed, which has a detrimental effect on patient outcomes. […] In this Evidence-Based Guideline, we recommend that the diagnosis of XLH is based on signs of rickets and/or osteomalacia in association with hypophosphataemia and renal phosphate wasting in the absence of vitamin D or calcium deficiency. […] Whenever possible, the diagnosis should be confirmed by molecular genetic analysis or measurement of levels of fibroblast growth factor 23 (FGF23) before treatment.

• #1 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-019-0152-5

  We recommend confirming the clinical diagnosis of XLH by genetic analysis of the PHEX gene in children and adults if feasible (grade B, moderate recommendation). […] If genetic analysis is not available, elevated plasma levels of intact fibroblast growth factor 23 (FGF23) and/or a positive family history for XLH support the diagnosis (grade C, moderate recommendation).

• #1 Hypophosphatemic Rickets – Children’s Health Issues – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/children-s-health-issues/congenital-kidney-tubular-disorders/hypophosphatemic-rickets

  People who have the most common form of hypophosphatemic rickets are given the medication burosumab and are not given the phosphate and calcitriol therapy described above. […] Burosumab is a therapy described above. Burosumab is a monoclonal antibody and is given as an injection under the skin. It helps increase the levels of phosphorus in the blood, helps decrease the severity of rickets, and in children may increase height. […] Genetic testing also may be offered to other family members.

• #1 Vitamin D-dependent rickets – a rare form of rickets – diagnostics and therapeutic problem | ICCBH2017 | 8th International Conference on Children’s Bone Health | Bone Abstracts

  https://www.bone-abstracts.org/ba/0006/ba0006p120

  Vitamin D-dependent rickets – a rare form of rickets – diagnostics and therapeutic problem […] The diagnosis is made on the basis of history, physical examination and laboratory tests, with hyperphosphatasia, hypophosphatemia, and hypocalcaemia and secondary hyperparathyroidism, the serum concentration of 1,25 (OH)2D is undetectable or decreased, while 25OHD is normal or above the norm. […] Due to non-specific clinical picture, the diagnosis of vitamin D resistant rickets forms is complicated and often time consuming, and patients with the diagnosis of vitamin D-dependent rickets type 1 require constant multispecialistic medical care. […] Optimal treatment is difficult to establish and should be based on supplementation of 1,25-dihydroxycholecalciferol or alphadiol in individually adjusted doses, as treatment with cholecalciferol is not effective. […] After normalisation of biochemical tests results patients require systematic follow-up (physical examination and laboratory tests) as they may require modification of treatment and determination of the lowest effective dose of drugs.

• #1

  https://www.pediatriconcall.com/spot-diagnosis/rickets/167

  A two years and eight months old female child presented to us with complaints of progressive falling of hair after neonatal period and delay and difficulty in walking. […] She had florid rickets in the form of widened wrists, widened ankles, open anterior fontanelle and mild frontal bossing along with slight bowing of legs and waddling gait. […] Her biochemical parameters were in favour of rickets showing low levels of serum calcium {8.6mg, dl} and moderately low levels of phosphorus {2.03 mg, dl}, alkaline phosphatase was markedly raised {1764.8 IU, l}. […] Serum parathormone {PTH} levels were also raised {354.9 pg, ml} indicating secondary hyperparathyroidism. […] Levels of 1,25-dihyroxyvitamin D {1,25-D} were also markedly raised {1053.6 pg, ml {normal 19.6-54.3 pg, ml}} which strongly points to vitamin D dependent type II rickets.

• #1 Rickets: Not a Disease of the Past | AAFP

  https://www.aafp.org/pubs/afp/issues/2006/0815/p619.html

  The most common laboratory findings in nutritional rickets are decreases in serum calcium, serum phosphorus, calcidiol, calcitriol, and urinary calcium. Conversely, parathyroid hormone, alkaline phosphatase, and urinary phosphorus levels are elevated. […] Vitamin D and supplements of calcium and phosphorus are used to treat nutritional rickets. […] After treatment initiation, all patients will require careful monitoring of serum calcium, phosphorus, alkaline phosphatase, and calcidiol levels and of urine calcium and phosphorus levels. […] To ensure early treatment, infants of affected parents must be screened often for hypophosphatemia and increased levels of serum alkaline phosphatase.

• #1 Multiple Diagnoses of Nutritional Rickets in An Inner-City Pediatric Population: A Case Series

  https://www.orthojournal.org/articles/multiple-diagnoses-of-nutritional-rickets-in-an-inner-city-pediatric-population-a-case-series.html

  This case series details seven pediatric cases of nutritional rickets in an inner-city population of New Jersey. […] The aim of this case series is to emphasize the importance of surveillance and high clinical suspicion for nutritional rickets, particularly in children with darker skin complexions and who were exclusively breast-fed during infancy. Rapid diagnosis and intervention may delay or negate the need for orthopedic surgical intervention. […] Nutritional rickets is defined as a defective mineralization of bone, particularly in the growth plates and osteoid matrix, often due to vitamin D deficiency, hypocalcemia, or metabolism of these nutrients. […] The global incidence of nutritional rickets is rising, even in the United States and other high-income countries. […] The prevalence of nutritional rickets is several hundred-fold higher in dark-skinned populations when compared to light-skinned populations.

• #1 Multiple Diagnoses of Nutritional Rickets in An Inner-City Pediatric Population: A Case Series

  https://www.orthojournal.org/articles/multiple-diagnoses-of-nutritional-rickets-in-an-inner-city-pediatric-population-a-case-series.html

  General risk factors for nutritional rickets include dark skin pigment, children under the age of three who were exclusively breast fed, and low exposure to sunlight. […] Nutritional rickets in infants can be overlooked due to many nonspecific clinical manifestations. […] This case series will review seven documented cases of nutritional rickets seen at an inner-city university hospital in New Jersey. […] At the time of presentation, four patients exhibited low calcium (ranging from 6.1-7.3 mg/dl) and six exhibited low vitamin D. […] When promptly recognized and treated, the prognosis of nutritional rickets is favorable. […] This highlights the fact that early detection and intervention is paramount. […] Given its perceived rarity, providers may overlook this condition and subsequently delay therapeutic dosing of calcium and vitamin D.

• #1 Adoption: A Diagnosis of Rickets

  https://www.rainbowkids.com/adoption-stories/adoption-a-diagnosis-of-rickets-1409

  Adoption: A Diagnosis of Rickets […] Rickets is a failure of the proper development (mineralization) of growing bone. It is probably present in 100% of all children adopted from institutions, even when it is not apparent to the observer. […] When a child first arrives from an institution, rickets can be diagnosed by a skilled pediatrician who performs a thorough physical exam and orders a blood test called a „rickets screen”. The rickets screen consists of alkaline phosphatase, calcium, and phosphorus. The calcium, phosphorus, and alkaline phosphatase levels in the blood may help support the diagnosis of rickets. […] When there is vitamin D deficiency over time, the bones lose their rigidity and become distorted making them at risk for fractures. Older children adopted from orphanages often have had fractures due to rickets and the healing of the fracture causes unusually shaped bones. […] The treatment of rickets is vitamin D containing foods such as milk, soy products fortified with calcium and vitamin D, or formula which is fortified with vitamin D. […] Most cases of rickets diagnosed in the first few years of life, are responsive to good nutrition and vitamin D supplementation. […] The overwhelming majority of the children who I have evaluated have had mild to moderate rickets with excellent response to a simple course of vitamin D therapy and a good old fashioned American diet. Delayed eruption of baby teeth, bow legs, decreased muscle tone and delayed motor development, a box-like shaped head with frontal bossing, and a sweaty head are the most common manifestations of rickets in my daily practice.

• #1 Rickets in Children: An Update

  https://www.mdpi.com/2227-9059/9/7/738

  Rickets refers to a deficient mineralization of the growth plate cartilage, predominantly affecting longer bones. […] Medical history, physical examination, radiologic features and biochemical tests are essential for diagnosis. […] Diagnosis is usually established by medical history, physical examination, biochemical tests, and radiography. […] The diagnosis of nutritional rickets is based on clinical, radiological, and biochemical evaluation. […] If rickets is suspected, a thorough biochemical evaluation is recommended for a prompt diagnosis. […] Blood ALP measurement is pivotal when rickets is suspected. Elevated ALP activity can confirm the diagnosis in patients with bone deformities and epiphyseal enlargement. […] The diagnosis of XLHR should be considered in the presence of clinical and/or radiological signs of rickets, impaired growth velocity, and hypophosphatemia associated with Pi renal wasting without vitamin D or Ca deficiency.

• #1 Rickets: Definition, Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/22459-rickets

  Nutritional rickets can be treated in weeks or months, depending on the severity of the case. […] For children with nutritional rickets, the outlook is typically good. With treatment, their condition should resolve in a matter of weeks or months. Most children treated for nutritional rickets recover completely and grow into healthy adults.

• #2 Rickets – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK562285/

  Rickets is a condition characterized by a defect in mineralization of the epiphyseal plates. […] In order to avoid long term complications, rickets must be promptly diagnosed and aggressively treated. […] If the rickets is clinically suspected, biochemical tests and radiological images are the next steps to confirm the diagnosis. […] The most important laboratory marker to diagnose the rickets is serum alkaline phosphatase (ALP), which is typically high as this is a disease of abnormal mineralization and increased osteoblastic activity. […] The combination of positive clinical signs, relevant laboratory findings (high ALP, and either hypocalcemia or hypophosphatemia), and typical radiological findings confirm the diagnosis of rickets.

• #2 Rickets: Definition, Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/22459-rickets

  Rickets is a childhood disease where your childs bones are too soft, causing their bones to warp, bend and break more easily. […] Rickets is different from osteomalacia, which is a similar condition seen in adults. […] There are several ways to diagnose rickets. If your childs pediatrician suspects rickets based on a physical exam or symptoms, they may order one or more of the following tests: X-rays, Blood testing, Urine testing, Bone biopsies (very rarely done), Genetic testing (for inherited rickets). […] Yes, most cases of rickets (especially nutritional rickets) are curable when caught early. […] While rickets is a treatable and often curable disease, its important to treat it as soon as possible. […] Yes, nutritional rickets can be prevented. […] If your child complains of or shows any of the symptoms listed above, especially widening of their wrists in children who can crawl, or bowing of their legs in children old enough to walk.

• #2 Frontiers | Diagnosis, treatment, and management of rickets: a position statement from the Bone and Mineral Metabolism Group of the Italian Society of Pediatric Endocrinology and Diabetology

  https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2024.1383681/full

  Rickets results from impaired mineralization of growing bone due to alterations in calcium and phosphate homeostasis. Clinical signs of rickets are related to the age of the patient, the duration of the disease, and the underlying disorder. The most common signs of rickets are swelling of the wrists, knees or ankles, bowing of the legs (knock-knees, outward bowing, or both) and inability to walk. However, clinical features alone cannot differentiate between the various forms of rickets. Rickets includes a heterogeneous group of acquired and inherited diseases. Nutritional rickets is due to a deficiency of vitamin D, dietary calcium or phosphate. Mutations in genes responsible for vitamin D metabolism or function, the production or breakdown of fibroblast growth factor 23, renal phosphate regulation, or bone mineralization can lead to the hereditary form of rickets.

• #2 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Rickets-Diagnosis.aspx

  Rickets is a disease of the growing bones, characterized by defective mineralization of the osseous matrix and epiphyseal cartilage, which stems from a lack of calcium and phosphorous metabolism. The condition is traditionally caused by a quantitative or qualitative lack of vitamin D. […] Thorough medical history, careful physical examination, and adequate interpretation of laboratory and radiographic findings are pivotal steps for establishing a correct diagnosis. […] When resources are available, laboratory and imaging techniques should be used for confirming the diagnosis and etiology of the disease. […] The most common laboratory findings in nutritional rickets (i.e. due to vitamin D deficiency) are decreased levels of serum calcium, serum phosphorus, calcidiol, calcitriol, and urinary calcium, as well as increased levels of serum parathyroid hormone, alkaline phosphatase, and urinary phosphorus. If both serum inorganic phosphorus and parathyroid hormone levels are normal, the diagnosis of rickets is unlikely.

• #2 Rickets – Symptoms, diagnosis and treatment | BMJ Best Practice

  https://bestpractice.bmj.com/topics/en-gb/635

  Rickets occurs primarily as a result of a nutritional deficiency of vitamin D, but can be associated with nutritional deficiencies of calcium or phosphorus. […] Rickets can manifest in childhood at the distal forearm, knee, and costochondral joints, as these are sites of rapid bone growth, where large quantities of calcium and phosphorus are required for mineralisation. […] Key diagnostic factors include the presence of risk factors. […] Other diagnostic factors include bone pain, growth faltering, delayed achievement of motor milestones, bony deformities, muscle weakness, carpopedal spasm, numbness or paresthesias, tetany, and hypocalcaemic seizures. […] 1st tests to order include x-ray of a long bone, serum calcium, serum inorganic phosphorus, serum parathyroid hormone level, 25-hydroxyvitamin D levels (calcidiol), alkaline phosphatase and liver function tests, serum creatinine and urea, and urinary calcium and phosphorus. […] Tests to consider include 1,25-dihydroxyvitamin D levels (calcitriol).

• #2 Rickets: Not a Disease of the Past | AAFP

  https://www.aafp.org/pubs/afp/issues/2006/0815/p619.html

  The most common laboratory findings in nutritional rickets are decreases in serum calcium, serum phosphorus, calcidiol, calcitriol, and urinary calcium. Conversely, parathyroid hormone, alkaline phosphatase, and urinary phosphorus levels are elevated. […] Vitamin D and supplements of calcium and phosphorus are used to treat nutritional rickets. […] After treatment initiation, all patients will require careful monitoring of serum calcium, phosphorus, alkaline phosphatase, and calcidiol levels and of urine calcium and phosphorus levels. […] To ensure early treatment, infants of affected parents must be screened often for hypophosphatemia and increased levels of serum alkaline phosphatase.

• #2 Rickets Imaging: Practice Essentials, Radiography

  https://emedicine.medscape.com/article/412862-overview

  Vitamin D deficiency results in rickets in children with growing bones and causes osteomalacia in adults with completed growth and closed growth plates. By definition, rickets is found only in children before closure of the growth plates, while osteomalacia occurs in persons of any age. Any child with rickets also has osteomalacia, but the reverse is not necessarily true. […] The diagnosis of nutritional rickets is made on the basis of history, physical examination, and biochemical testing and is confirmed by radiographs. […] Plain radiography of the ametaphyseal sites (wrists and ankles) is usually performed to confirm the diagnosis. […] In more advanced stages of rickets, radiographic changes are pathognomonic; however, the underlying cause needs to be established using clinical and biochemical assessments. False-negative findings can occur in the early phase of disease.

• #2 Rickets – Wikipedia

  https://en.wikipedia.org/wiki/Rickets

  Rickets may be diagnosed with the help of: […] Diagnosis is generally based on blood tests finding a low calcium, low phosphorus, and a high alkaline phosphatase together with X-rays. […] Blood tests: Serum calcium may show low levels of calcium, serum phosphorus may be low, and serum alkaline phosphatase may be high from bones or changes in the shape or structure of the bones. This can show enlarged limbs and joints. […] A bone density scan may be undertaken. […] Radiography typically show widening of the zones of provisional calcification of the metaphyses secondary to unmineralized osteoid. Cupping, fraying, and splaying of metaphyses typically appears with growth and continued weight bearing. These changes are seen predominantly at sites of rapid growth, including the proximal humerus, distal radius, distal femur and both the proximal and the distal tibia. Therefore, a skeletal survey for rickets can be accomplished with anteroposterior radiographs of the knees, wrists, and ankles.

• #2 Rickets | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/rickets?lang=us

  Rickets, less commonly known as rachitis, refers to deficient mineralization of the growth plate in the pediatric population. […] The onset and presentation of rickets depend on the etiology and degree of deficiency. Typically, in severe cases, rickets becomes apparent in the second year of life. […] The presentation is usually with skeletal changes and bone pain. […] The differential for leg bowing in children includes developmental or congenital bowing, Blount disease, osteogenesis imperfecta, and many others that are not usually a consideration. […] The differential for a widening of the growth plate includes Schmid-type metaphyseal chondrodysplasia, hypovitaminosis C (scurvy), delayed maturation due to illness, and endocrine disturbances. […] Treatment requires correction of the metabolic imbalance. Only rarely is the orthopedic surgical intervention necessary to correct skeletal deformities.

• #2 Overview of rickets in children – UpToDate

  https://www.uptodate.com/contents/overview-of-rickets-in-children

  Calcipenic rickets is caused by calcium deficiency, which usually is due to insufficient intake of vitamin D or failure to metabolize dietary vitamin D into its active form. In some cases, it is caused by insufficient intake or absorption of calcium in the setting of normal vitamin D levels. Calcipenic rickets may be associated with low serum calcium levels but also occurs in the setting of normocalcemia. […] Phosphopenic rickets is characterized by low serum levels of phosphorus, usually caused by renal phosphate wasting and, less commonly, by nutritional phosphorus deficiency.

• #2 Osteomalacia and rickets – Knowledge @ AMBOSS

  https://www.amboss.com/us/knowledge/osteomalacia-and-rickets/

  Diagnosis is based on characteristic laboratory and imaging findings. […] The choice of imaging depends on whether osteomalacia or rickets is suspected. […] If there is diagnostic uncertainty, refer patients to endocrinology for advanced studies. […] Diagnostic scoring systems for osteomalacia that include clinical history, biochemical results, and radiological imaging findings have been proposed, but they have not yet been validated. […] Obtain the studies listed in the table below. […] Common laboratory findings in vitamin D deficiency include Ca, phosphorus, PTH, and ALP. […] If findings are not consistent with osteomalacia/rickets, see Laboratory evaluation of bone disease. […] PTH is elevated in calcipenic rickets but is typically normal in phosphopenic rickets. […] Children with open growth plates: x-rays of wrists and knees to evaluate for rickets.

• #2 Hypophosphatemic Rickets – Children’s Health Issues – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/children-s-health-issues/congenital-kidney-tubular-disorders/hypophosphatemic-rickets

  Hypophosphatemic rickets is a disorder in which the bones become painfully soft and bend easily because the blood contains low levels of the electrolyte phosphate. […] The blood and urine are tested, and x-rays are taken of bones. […] Laboratory tests show that calcium levels in the blood are normal, but that phosphate levels are low. […] Urine is also tested to detect the levels of phosphate that have been excreted. The phosphate levels in the urine are high. […] Genetic testing can help confirm the diagnosis. […] Treatment of hypophosphatemic rickets is aimed at raising phosphate levels in the blood, which promotes normal bone formation. […] Phosphate can be taken by mouth and should be combined with calcitriol, the activated form of vitamin D. Taking vitamin D alone is not enough.

• #2 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-024-00926-x

  Patients usually present with rickets or osteomalacia and concomitant hypophosphataemia. The differential diagnosis is based on the mechanisms leading to hypophosphataemia, namely, high parathyroid hormone (PTH) activity (leading to calcipenic rickets or osteomalacia), inadequate phosphate absorption from the gut or renal phosphate wasting (leading to phosphopenic rickets or osteomalacia). A family history of X-linked inheritance with full penetrance in female carriers strongly supports the diagnosis of X-linked hypophosphataemia (XLH), which can be confirmed by genetic testing. […] In the presence of hypophosphataemia, FGF23 synthesis and release from bone will decrease, resulting in plasma FG23 levels in the low or low-normal range. In principle, FGF23 levels represent the key discriminant in non-calcipenic rickets, enabling FGF23-mediated inhibition of phosphate reabsorption by proximal tubular cells to be distinguished from primary renal tubular wasting.

• #2 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-024-00926-x

  The clinical, biochemical and radiological features that suggest a diagnosis of XLH were described in detail in our 2019 guideline. Here, we provide updated recommendations and focus on discussion of new aspects. For the assessment of phosphate homeostasis in adults, a fasting blood draw and 24-h urine collection are recommended because serum phosphate concentration and urinary calcium excretion vary with food intake throughout the day. However, this approach is not practical in infants and children. […] The differential diagnosis of XLH is based on the mechanisms leading to hypophosphataemia namely, high parathyroid hormone (PTH) activity (leading to calcipenic rickets), inadequate phosphate absorption from the gut or renal phosphate wasting (leading to phosphopenic rickets). When possible, the diagnosis of XLH should be confirmed by genetic testing.

• #2 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-019-0152-5

  The diagnosis of XLH is based on the association of clinical, radiological and biochemical findings. […] In children, a diagnosis of X-linked hypophosphataemia (XLH) should be considered in the presence of clinical and/or radiological signs of rickets, impaired growth velocity and serum levels of phosphate below the age-related reference range associated with renal phosphate wasting and in the absence of vitamin D or calcium deficiency (grade B, moderate recommendation). […] In adults, the diagnosis of XLH should be considered in the presence or history of lower limb deformities, and/or clinical and/or radiological signs of osteomalacia (including pseudofractures, early osteoarthritis and enthesopathies) in the context of serum levels of phosphate below the age-related reference range associated with renal phosphate wasting (grade B, moderate recommendation).

• #2 Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia | Nature Reviews Nephrology

  https://www.nature.com/articles/s41581-024-00926-x

  If FGF23 levels are not suppressed, the differential diagnosis is limited to a few diseases, with XLH being the most frequent, accounting for approximately 80% of cases. Other potential diagnoses include autosomal-dominant hypophosphataemic rickets, autosomal-recessive hypophosphataemic rickets, Raine syndrome, fibrous dysplasia, tumour-induced osteomalacia, and hereditary hypophosphataemic rickets with hypercalciuria. […] The first diagnostic approach for a patient with rickets or osteomalacia should be to exclude metabolic acidosis, renal diseases that cause non-selective tubular wasting that is not restricted to phosphate, and calcipenic diseases that cause hypophosphataemia secondary to hyperparathyroidism. […] We recommend that any at-risk family member of a patient with XLH should be investigated for XLH. […] We recommend confirming the clinical diagnosis of XLH by genetic analysis in children and adults, if available. If molecular genetic analysis is not available, a family history of X-linked inheritance, as well as non-suppressed plasma levels of intact FGF23 in association with hypophosphataemia support the diagnosis of XLH.

• #2

  https://www.pediatriconcall.com/spot-diagnosis/rickets/167

  A two years and eight months old female child presented to us with complaints of progressive falling of hair after neonatal period and delay and difficulty in walking. […] She had florid rickets in the form of widened wrists, widened ankles, open anterior fontanelle and mild frontal bossing along with slight bowing of legs and waddling gait. […] Her biochemical parameters were in favour of rickets showing low levels of serum calcium {8.6mg, dl} and moderately low levels of phosphorus {2.03 mg, dl}, alkaline phosphatase was markedly raised {1764.8 IU, l}. […] Serum parathormone {PTH} levels were also raised {354.9 pg, ml} indicating secondary hyperparathyroidism. […] Levels of 1,25-dihyroxyvitamin D {1,25-D} were also markedly raised {1053.6 pg, ml {normal 19.6-54.3 pg, ml}} which strongly points to vitamin D dependent type II rickets.

• #2 Rickets: Definition, Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/22459-rickets

  Nutritional rickets can be treated in weeks or months, depending on the severity of the case. […] For children with nutritional rickets, the outlook is typically good. With treatment, their condition should resolve in a matter of weeks or months. Most children treated for nutritional rickets recover completely and grow into healthy adults.

• #2 Multiple Diagnoses of Nutritional Rickets in An Inner-City Pediatric Population: A Case Series

  https://www.orthojournal.org/articles/multiple-diagnoses-of-nutritional-rickets-in-an-inner-city-pediatric-population-a-case-series.html

  General risk factors for nutritional rickets include dark skin pigment, children under the age of three who were exclusively breast fed, and low exposure to sunlight. […] Nutritional rickets in infants can be overlooked due to many nonspecific clinical manifestations. […] This case series will review seven documented cases of nutritional rickets seen at an inner-city university hospital in New Jersey. […] At the time of presentation, four patients exhibited low calcium (ranging from 6.1-7.3 mg/dl) and six exhibited low vitamin D. […] When promptly recognized and treated, the prognosis of nutritional rickets is favorable. […] This highlights the fact that early detection and intervention is paramount. […] Given its perceived rarity, providers may overlook this condition and subsequently delay therapeutic dosing of calcium and vitamin D.

• #2 Rickets

  https://www.rch.org.au/kidsinfo/fact_sheets/rickets/

  Rickets is a preventable bone disease that causes weak, soft bones. If a child has softer bones, the bones can bend and become an abnormal shape. Rickets only occurs in growing bones, so it mostly occurs in infants and young children, but it can also occur in teenagers. It is most common when children are growing quickly. […] Rickets is usually caused by low vitamin D, especially if children also have low calcium or low phosphate intake. Calcium and phosphate are minerals that are mostly found in milk and dairy foods, and they are important for healthy, strong bones. […] Rickets is not common. Nearly all cases of rickets in Australia occur in infants and children who have migrated to Australia, or whose parents migrated to Australia. The risk factors for rickets are the same as the risk factors for low vitamin D.

• #2 Rickets – Causes, Symptoms, Diagnosis and Treatments

  https://www.lybrate.com/topic/rickets

  Rickets is clinically diagnosed based on the occurrence of bowed legs, muscle weakness, poor growth, and a softening of the bones. […] Vitamin D deficiency is widely believed (by medical professionals and experts) to be the leading cause of rickets and a number of similar medical conditions. […] So, a vitamin D test is often done as part of a screening. However, an x-ray of bone structure helps in the accurate diagnosis of rickets. […] In other words, rickets is diagnosed by physical examination and X-rays. A medical professional or doctor should be able to diagnose this using a physical examination and X-rays. The x-rays will reveal bone deformities and bone softening. […] A blood test will be conducted to determine the level of calcium in the blood and to rule out other conditions that can cause bone deformities.

• #2 Rickets: What It Is, Symptoms, and More

  https://www.verywellhealth.com/rickets-5080150

  Rickets can lead to stunted growth and bone problems later on in life, catching the disease early and pursuing prompt treatment can prevent any further bone loss. […] They will examine your child through blood tests and X-rays to determine whether or not the symptoms are related to a case of rickets. The blood tests are designed to check for levels of calcium, phosphorous, and vitamin D in the blood. In rare cases, bone samples can be removed to help confirm a case of the disease. […] If you notice any of the above symptoms in yourself or your child, it’s important to speak the help of your medical healthcare provider right away. […] They will be able to create a tailor-made plan for you depending on the level and progression of rickets.

• #3

  https://link.springer.com/article/10.1007/s00467-021-05328-w

  The differential diagnosis of rickets can be straightforward, e.g., an infant presenting with typical clinical symptoms and a history of low calcium intake and lack of vitamin D prophylaxis suggests nutritional rickets, but can be tricky in a child with a rare case of hereditary rickets, especially when presenting with mild symptoms and concomitant decreased vitamin D levels, which is not uncommon. […] The use of the diagnostic algorithm based on patient history, clinical presentation, laboratory and imaging studies, as well as its pitfalls, are outlined in the following section. […] A detailed medical history, including dietary intake and medication, as well as family history, is essential in order to establish the mode of inheritance. […] A detailed examination, including assessment of height and sitting height, in order to detect a disproportionate short stature (short legs and normal trunk length), presence of limb deformities (genu varum and genu valgum), and thickened wrists and ankles (widened metaphysis), and enlarged costochondral junctions of the rib (rachitic rosary)) should be undertaken.

• #3 Rickets – Symptoms, diagnosis and treatment | BMJ Best Practice US

  https://bestpractice.bmj.com/topics/en-us/635

  1st tests to order include radiograph of a long bone, serum calcium, serum inorganic phosphorus, serum parathyroid hormone level, 25-hydroxyvitamin D levels (calcidiol), alkaline phosphatase and liver function tests, serum creatinine and blood urea nitrogen, and urinary calcium and phosphorus. […] Tests to consider include 1,25-dihydroxyvitamin D levels (calcitriol).

• #3

  https://www.nhs.uk/conditions/rickets-and-osteomalacia/

  Rickets is a condition that affects bone development in children. It causes bone pain, poor growth and soft, weak bones that can lead to bone deformities. […] A blood test can usually confirm a diagnosis of rickets, although your child may also have some X-rays or possibly a bone density scan (DEXA scan). This is a type of X-ray that measures the calcium content in bones.

• #3 X-linked Hypophosphatemic Rickets | Rady Children’s Hospital

  https://www.rchsd.org/programs-services/nephrology/conditions-treated/x-linked-hypophosphatemic-rickets/

  X-linked hypophosphatemic (XLH) rickets is a rare genetic disorder related to low levels of phosphate in the blood, termed hypophosphatemia. […] The diagnosis of XLH is based on clinical findings, imaging, blood work and family history. […] X-rays may show bony abnormalities of the upper extremities, lower extremities and sometimes ribs. […] Blood work typically reveals low levels of phosphorous, and high levels of alkaline phosphatase. […] If suspicion for XLH is high, your doctor may order molecular genetic testing for the PHEX gene. […] Additionally, if the PHEX variant has been identified in the family, genetic testing may be suggested for family members, especially newborns at risk in order to ensure early treatment for optimal outcome.

• #3 Rickets: What It Is, Symptoms, and More

  https://www.verywellhealth.com/rickets-5080150

  Rickets can lead to stunted growth and bone problems later on in life, catching the disease early and pursuing prompt treatment can prevent any further bone loss. […] They will examine your child through blood tests and X-rays to determine whether or not the symptoms are related to a case of rickets. The blood tests are designed to check for levels of calcium, phosphorous, and vitamin D in the blood. In rare cases, bone samples can be removed to help confirm a case of the disease. […] If you notice any of the above symptoms in yourself or your child, it’s important to speak the help of your medical healthcare provider right away. […] They will be able to create a tailor-made plan for you depending on the level and progression of rickets.

• #3 Rickets Disease – Causes, Symptoms, Diagnosis, Treatment & Prevention

  https://www.maxlab.co.in/blogs/rickets-disease

  Rickets is a childhood disease caused by the lack of vitamin D, which is typically inherited. […] Rickets is a disease that affects the bones and causes them to become weak and soft. […] If you think your child may have rickets, it is important to see a doctor so they can diagnose and treat the condition. Early diagnosis and treatment is essential for preventing complications such as deformities, joint problems, and short stature. […] There are a few ways that doctors can diagnose rickets. They may take a medical history, do a physical examination, order blood tests, and/or get X-rays. […] The doctor will ask about any symptoms the child has and whether there is a family history of rickets or other bone diseases. […] The doctor will look for signs of rickets, such as bowed legs or a curving of the spine. […] Doctors can check for low levels of calcium, phosphorus, and vitamin D in the blood. […] X-rays can show how much calcium is in the bones and whether they are softening or thinning.

• #4 Rickets – Symptoms, diagnosis and treatment | BMJ Best Practice US

  https://bestpractice.bmj.com/topics/en-us/635

  Rickets only occurs in growing children before fusion of the epiphyses, and typically affects the wrists, knees, and costochondral junctions. […] Rickets can manifest in childhood at the distal forearm, knee, and costochondral joints, as these are sites of rapid bone growth, where large quantities of calcium and phosphorus are required for mineralization. […] Characteristic features include widening of the bones at the wrists and knees, bowing of the legs, spine deformities, fractures, bone pain, and dental abnormalities. […] Key diagnostic factors include history of breast-feeding, history of inadequate sunlight exposure, history of calcium deficiency, and history of phosphate deficiency. […] Other diagnostic factors include bone pain, growth faltering, delayed achievement of motor milestones, bony deformities, muscle weakness, carpopedal spasm, tetany, numbness or paresthesias, and hypocalcemic seizures.

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