Materiały źródłowe

• #1 Hip Dysplasia | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/hip-dysplasia

  Severe cases of hip dysplasia are usually diagnosed during a routine screening within the first few months of a baby’s life. […] Hip dysplasia is a treatable condition. However, if left untreated, it can cause irreversible damage that will cause pain and loss of function later in life. It is the leading cause of early arthritis of the hip before the age of 60. The severity of the condition and catching it late increase the risk of arthritis. Therefore, monitoring and early intervention are both important to reduce a child’s risk of pain and disability in adulthood. […] Hip dysplasia occurs when the hip socket (acetabulum) doesn’t develop properly and is too shallow to cover the head of the thigh bone (femoral head) completely. Many adolescents and young adults with the condition were born with developmental dysplasia of the hip (DDH). In others, previously healthy hips did not develop properly as their bones and bodies grew.

• #1 Developmental dysplasia of the hip

  https://www.nhs.uk/conditions/developmental-dysplasia-of-the-hip/

  With early diagnosis and treatment, children are less likely to need surgery, and more likely to develop normally. […] Your baby’s hips will be checked as part of the newborn physical screening examination within 72 hours of being born, and again at 6 to 8 weeks of age. […] If a doctor, midwife or nurse thinks your baby’s hip feels unstable, they should have an ultrasound scan of their hip between 4 and 6 weeks old. […] Babies should also have an ultrasound scan of their hip between 4 and 6 weeks old if there have been childhood hip problems in your family. […] Your child will be referred to an orthopaedic specialist in hospital for an ultrasound scan if your doctor thinks there’s a problem with their hip.

• #1 Developmental Dysplasia of the Hip – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563157/

  Diagnosing developmental dysplasia of the hip involves clinical screening and imaging studies. Clinical examination, including the Ortolani test, the Barlow maneuver, and observation of specific physical signs, aids in early detection. […] Early diagnosis and management are paramount to prevent long-term complications such as persistent dislocation and early hip osteoarthritis. […] Diagnosing developmental dysplasia of the hip consists of clinical screening and imaging studies. Clinical screening is generally done in newborns and children with risk factors for hip abnormalities. Clinical examination includes the Ortolani test, the Barlow maneuver, and noting limited hip abduction, asymmetric gluteus folds, or limb-length inequality, which suggest developmental hip dysplasia. […] Abnormal findings on clinical screening should be further evaluated with x-ray or ultrasound imaging, depending on the patient’s age.

• #1 Diagnosing Developmental Hip Dysplasia | NYU Langone Health

  https://nyulangone.org/conditions/developmental-hip-dysplasia/diagnosis

  Developmental hip dysplasia is a condition in which the ball-shaped top of the thigh bone, called the femoral head, doesnt fit firmly into the hip socket, also known as the acetabulum. […] Doctors at Hassenfeld Childrens Hospital at NYU Langone focus on diagnosing developmental hip dysplasia as early as possible, when the least invasive treatments may be most effective. […] Pediatricians conduct well-baby exams within a week of birth and every couple of months during the childs first year to assess his or her growth and development. During these exams, the pediatrician performs the Barlow and Ortolani tests, which involve moving your babys hip joint in and out of proper position. A clicking sound is heard if its misaligned. Your child may be referred to an orthopedic specialist if the pediatrician suspects a problem with the hip joint.

• #1 Hip Dysplasia: Symptoms, Causes, Diagnosis, and Treatment

  https://drnkmagu.com/hip-dysplasia-symptoms-causes-diagnosis-treatment-and-prevention/

  Hip dysplasia is a condition that usually affects individuals from infancy to adulthood. […] A hip dysplasia diagnosis requires a comprehensive assessment and a detailed physical examination (Ortolani Test, Barlow Test, Galeazzi Sign, and Hip Clicks). In some cases, imaging tests like ultrasound, X-ray, 3-D CT scan, and MRI may be advised to confirm if an individual has hip dysplasia or not. […] The hip problem can be identified through the given signs and symptoms, such as: Physical examination (Ortolani Test, Barlow Test, Galeazzi Sign and Hip Clicks), Visual observations (limited range of motion or uneven leg length), and Imaging test (ultrasound or X-ray).

• #1 Hip Dysplasia | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/hip-dysplasia

  Many babies with DDH are diagnosed during their first few months of life. […] Infants in the U.S. are routinely screened for hip dysplasia. During the exam, the doctor will ask about your child’s history, including their position during pregnancy. They’ll also ask if there is any history of hip problems on either parent’s side. The doctor will do a physical exam and order diagnostic tests to get detailed images of your child’s hip. Typical tests can include: Ultrasound (sonogram): Ultrasound uses high-frequency sound waves to create pictures of the femoral head (ball) and the acetabulum (socket). It is the preferred way to diagnose hip dysplasia in babies up to 6 months of age. X-ray: After a child is 6 months old and bone starts to form on the head of the femur, X-rays are more reliable than ultrasounds. […] Your child’s treatment will depend on the severity of their condition. The goal of treatment is to restore normal hip function by correcting the position or structure of the joint.

• #1 Developmental Dysplasia of the Hip (DDH) Workup: Ultrasonography, Plain Radiography, CT and MRI

  https://emedicine.medscape.com/article/1248135-workup

  Ultrasonography (US) has been of substantial benefit in the assessment and treatment of children with developmental dysplasia of the hip (DDH). The benefit of screening all children with US is controversial. Even with US screening, children with hip dysplasia can be diagnosed late, and one concern with routine US evaluation of newborns is overdiagnosis of hip dysplasia (ie, increased false-positive results). […] However, most authors agree that US is an excellent tool for assessing children with suspected hip instability and a useful aid in the treatment of children with DDH, especially in monitoring reduction by closed methods. […] An ultrasound evaluation is typically performed either by assessing the alpha and beta angles or by performing a dynamic evaluation. An alpha angle outlines the slope of the superior aspect of the bony acetabulum, with an angle greater than 60 considered normal. The beta angle, which is considered normal if less than 55, depicts the cartilaginous component of the acetabulum. Many institutions now use a dynamic form of US, as heralded by Harcke.

• #1 Developmental Dysplasia of the Hip – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563157/

  The American Institute of Ultrasound in Medicine and the American College of Radiology recommend hip US to visualize acetabular dysplasia, hip dislocation, femoral head anatomy, ligament teres, and the hip capsule. The most important finding to identify is femoral head coverage by the acetabulum, a minimum of 50%, and depth of the bony acetabulum, known as the alpha angle, where a finding exceeding 60 is considered normal. […] If x-ray studies are used to evaluate developmental dysplasia of the hip, the following findings can help identify hip abnormalities: Hilgenreiner line, Perkin line, Shenton line, acetabular index, and the center-edge angle of Wiberg. […] The treatment of developmental dysplasia of the hip depends on the patient’s age and the severity of the dysplasia. In cases of minor hip instability (Barlow positive, Ortalani negative), spontaneous recovery occurs in 90% of cases within the first 2 weeks of life.

• #1 Developmental Dysplasia of the Hip (DDH) Workup: Ultrasonography, Plain Radiography, CT and MRI

  https://emedicine.medscape.com/article/1248135-workup

  Standard radiographic views for DDH include a standing anteroposterior (AP) view of the pelvis, with the hips in neutral position, and a false profile view in which the patient is standing angled at 65 from the x-ray plate. The radiograph is then taken, profiling the anterior aspect of the acetabulum. If any evidence of hip subluxation is present, an abducted internal rotation view can help determine if the hip reduces and better determines the true neck-shaft angle of the proximal femur. […] Radiographic evaluation is typically carried out as follows. From an AP radiograph of the hips, a horizontal line (Hilgenreiner line) is drawn between each triradiate cartilage. Next, lines perpendicular to the Hilgenreiner line are drawn through the superolateral edge of the acetabulum (Perkin lines), dividing the hip into four quadrants. The proximal medial femur should be in the lower medial quadrant, or the ossific nucleus of the femoral head, if present (usually observed in patients aged 4-7 months), should be in the lower medial quadrant.

• #1 Developmental Dysplasia of the Hip (DDH) Workup: Ultrasonography, Plain Radiography, CT and MRI

  https://emedicine.medscape.com/article/1248135-workup

  The acetabular index is the angle between the Hilgenreiner line and the line drawn from the triradiate cartilage to the lateral edge of the acetabulum. Typically, this angle decreases with age and should measure less than 20 by 2 years of age. Shenton line is drawn from the medial aspect of the femoral neck to the inferior border of the pubic rami. It should create a smooth arc that is not disrupted. Disruption of the Shenton line indicates the presence of some degree of hip subluxation. […] Computed tomography (CT) can also be helpful in determining femoral anteversion and in determining the extent of posterior acetabular coverage. Magnetic resonance imaging (MRI) can be beneficial in identifying the underlying bony and soft-tissue anatomy. One study evaluated MRI findings in pediatric orthopedic patients who showed residual subluxation after reduction of DDH. The subjects in the surgery arm of the study showed the presence of a high-signal intensity area (HSIA) within the weight-bearing portion of the acetabular cartilage preoperatively, which decreased or disappeared after the surgical procedure. In the conservative arm, those with HSIAs demonstrated poor acetabular growth and those without HISAs showed acetabular growth. The researchers concluded that HSIAs on MRI may be a marker for poor acetabular growth, which would make these areas valuable findings in corrective surgery decision-making.

• #1 Diagnosis – International Hip Dysplasia Institute

  https://hipdysplasia.org/adults/diagnosis/

  Hip Dysplasia is usually diagnosed by an experienced physician using the combination of symptoms, hip examination, and x-ray findings. […] One study showed that adult patients with hip dysplasia may see more than three healthcare providers and have symptoms for five years before a correct diagnosis is made. […] An x-ray can identify hip dysplasia by the shallow socket (acetabulum), and by displacement of the ball (femoral head) from the socket. […] X-rays can determine the severity of dysplasia, which helps to establish the need for surgery. […] A common measurement for the depth of the socket is the center-edge angle (C-E angle). The normal C-E angle is 25 or more. […] An MRI may also be helpful to diagnose hip dysplasia and give the physician information on any damage to the cartilage and labrum.

• #1 Royal Orthopaedic Hospital – Hip Dysplasia in Teenagers and Young Adults

  https://roh.nhs.uk/services-information/hips/hip-dysplasia-in-teenagers-and-young-adults

  How is Hip Dysplasia Diagnosed? Plain X-ray is the primary imaging technique used for diagnosis of hip dysplasia. An X-ray shows the bony anatomy, it does not look at soft tissue issues. […] Important x-ray measurements include: The lateral centre-edge (LCE) – LCE angle is the most important angle to measure the lateral coverage of the socket over the femoral head, it measures from the centre of the head of femur (HOF) to the edge of the socket. An LCE of 18-25 is defined as mild or borderline dysplasia. An LCE of less than 18 degrees is defined as significant dysplasia. […] There are many other x-ray measurements which may be used to help in the diagnosis of hip dysplasia, but the main ones are the ones here: Alpha Angle – Indicates femoral head roundness. Shentons line – Indicates if the ball is sitting within the socket or not. Crossover sign – Indicates if the socket is orientated backwards. Anterior centre-edge angle – Measures coverage over the front of the socket. FEAR index – Predicts stability of the joint. Tonnis grade – Detects how much osteoarthritis is present.

• #1 Hip Dysplasia: Diagnosis & Treatment | NewYork-Presbyterian

  https://www.nyp.org/orthopedics/columbia-orthopedics/hip-dysplasia/treatment

  How is Hip Dysplasia Diagnosed? Diagnosis Pediatricians routinely screen for hip dysplasia. During a newborns physical exam and at well-baby check-ups, the doctor will move the babys legs to look for differences in mobility between the two hip joints and listen for any sounds when they move. One leg may look shorter than the other. The doctor may use ultrasound imaging to confirm a hip dysplasia diagnosis in a baby younger than six months. […] For older children as well as adults, these imaging tests help the doctor make a diagnosis: X-ray: Shows the shapes of bones in the hip joint […] MRI (magnetic resonance imaging): Used to distinguish between bone and cartilage, and to identify a labral tear […] 3D CT (computed tomography): Creates a detailed, three-dimensional image of the bones in the hip joint.

• #1 Royal Orthopaedic Hospital – Hip Dysplasia in Teenagers and Young Adults

  https://roh.nhs.uk/services-information/hips/hip-dysplasia-in-teenagers-and-young-adults

  Other imaging investigations MRI scan A scan that takes pictures of your pelvis, to show the bone, cartilage, ligament, tendon and labrum in more detail. MRI scans are often used to assess the condition of the joint and to help decide on treatment options. […] MRI Arthrogram Dye or contrast is injected into the joint and then an MRI scan performed – this helps to highlight where contrast is leaking from the joint- indicating a labral tear. […] CT Scan Provides a 3D image reconstruction of the bone anatomy which will help diagnose complex multidirectional deformity and aid with surgical planning. […] Arthroscopy Also called Keyhole surgery. The surgeon looks inside the joint to help diagnose your hip problem. In some cases it can be used to treat certain hip problems too. It is recommended that you are seen by a specialist in Young Adult Hip conditions, as they are usually best placed to accurately diagnose your hip problem, rather than a general orthopaedic doctor.

• #1 Diagnosis – Hip Dysplasia Life

  https://www.hipdysplasialife.org/diagnosis

  They found that some participants pain and symptoms were perceived to be coming from a soft tissue injury by GPs and physiotherapists. […] On average, research studies show that it can take 6-8 years for adults with hip dysplasia to be diagnosed. […] Other research suggests that difficulty identifying mild hip dysplasia on scans such as x-rays and MRIs might play a part in missed and delayed diagnosis. […] Some people with hip dysplasia are initially diagnosed with a labral tear and it can be difficult to know whether surgery or conservative (non-surgical) treatment is best. […] A delayed diagnosis features in many (too many) of our stories. […] The importance of being and feeling heard marks a turning point for many of us. […] For some women with hip dysplasia pregnancy can mask or show hip dysplasia symptoms.

• #1 Diagnosis – Hip Dysplasia Life

  https://www.hipdysplasialife.org/diagnosis

  Some people are diagnosed with hip dysplasia as an infant and have a series of interventions as children and young adults. […] For others, hip dysplasia isnt diagnosed until symptoms occur much later, in their twenties, thirties or beyond. […] For those not diagnosed as children, the journey to a diagnosis as an adult can be lengthy and at times, very frustrating. […] People with hip dysplasia can have many consultations with different health care professionals before a diagnosis of hip dysplasia is eventually given. […] In a study with 97 people diagnosed with hip dysplasia in adulthood, 22 had received a diagnosis and began some form of treatment within 12 months, while the majority (75) had experienced a late/delayed diagnosis and thus delayed treatment. […] Although the aim of the study was not to identify the reasons for delayed diagnosis, the authors conclude that hip dysplasia is an under-recognised condition – in both the general public and among doctors.

• #1 Diagnosis of Developmental Dysplasia of the Hip in Newborns and Infants | IntechOpen

  https://www.intechopen.com/chapters/81004

  If the presence of DDH is adequately orthopedically treated, the cure is complete with an excellent prognosis, and this is darkened if it comes to surgical treatment. […] The objective of diagnosis and treatment is that the child does not reach the stage of ambulation with DDH and avoid surgical treatment, which is a major procedure.

• #1 Developmental dysplasia of the hip (DDH) | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/developmental-dysplasia-of-the-hip-ddh

  Developmental dysplasia of the hip, or DDH, means that the hip joint of a newborn baby is dislocated or prone to dislocation. […] Treatment includes special harnesses, or operations and casts, depending on the age of the child at diagnosis. […] Babies are routinely checked at birth to make sure their hip joints are properly positioned. […] An ultrasound is usually performed to confirm the diagnosis and help determine the extent of the dislocation. […] A baby born with a dislocated hip can be successfully treated with a Pavlik harness. […] If a baby is diagnosed with a dislocated hip when they are six months old or more, then an anaesthetic will be required before the hip is manipulated into its proper position. […] Sometimes, a child isn’t diagnosed with DDH until they are two or three years of age. […] Most babies born with successfully treated DDH don’t have any hip problems in later life.

• #1 Hip Dysplasia Diagnosis & Treatment | St. Louis Hip Surgeon John C. Clohisy

  https://old.johnclohisymd.com/conditions-treated/hip-dysplasia

  Hip dysplasia includes a group of disorders that have deformities of the joint. Most commonly, hip dysplasia is characterized by a shallow socket that does not adequately cover the femoral head. […] The diagnosis of symptomatic hip dysplasia is made by a complete medical history, a physical examination, and an X-ray evaluation. Sometimes other types of imaging, such as a magnetic resonance arthrogram (MRA) or a computed tomography (CT) scan may be required to make an accurate diagnosis. […] In general, if acetabular hip dysplasia is diagnosed early (prior to osteoarthritis), joint preservation surgery is considered. For example, a shallow hip socket can be surgically corrected with periacetabular osteotomy (PAO) surgery. […] It is important to realize that acetabular hip dysplasia is usually a progressive condition that worsens with time. As the disease progresses, hip pain and activity limitations worsen. For this reason, early diagnosis and consideration of different treatment options is important.

• #1 Diagnosis, prevention, and management of canine hip dysplasia: a review

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6070021/

  Canine hip dysplasia (CHD) is a polygenic and multifactorial developmental disorder characterized by coxofemoral (hip) joint laxity, degeneration, and osteoarthritis (OA). Current diagnostic techniques are largely subjective measures of joint conformation performed at different stages of development. […] Continued refinement of similar imaging methods may improve diagnostic imaging techniques to identify dogs predisposed to degenerative hip joint changes. […] Despite some recognized patterns of joint degeneration characteristic of CHD, there is significant variability in the progression and ultimate severity of the disease as well as inconsistent relationships between gross and radiographic joint changes and clinical signs. […] The Ortolani test is a subjective evaluation of coxofemoral joint laxity originally designed for diagnosis of human congenital hip dislocation in the 1930s.

• #1 Diagnosis And Treatment Of Hip Dysplasia | Dog’s Health

  https://www.dogshealth.com/diagnosis-and-treatment-of-hip-dysplasia-in-dogs/

  In this part we’ll focus on the diagnosis and treatment of hip dysplasia. How is the disease diagnosed? How to treat it? What options are there? […] Hip dysplasia in dogs is normally diagnosed by a complete physical exam and X-rays of the hip joints. […] Your veterinarian will observe the dog as it moves, stands and sits to check for characteristic signs of hip problems. […] If a dog has noticeable signs resembling hip dysplasia or arthritis, any changes in the dog’s hip joint will be apparent on an X-ray. […] The vet will also check to see if there is looseness in the dog’s hip joints. The dog may also display pain when the vet extends and flexes its rear legs. […] In order to get the best result from an X-ray and make certain that the dog’s muscles are relaxed, the vet may need to anesthetize the dog in order to take the best pictures of the dog’s hip joints. […] After reviewing the X-rays, the veterinarian will compare the dog’s hip or hips to healthy dogs of the same breed and age. […] When a dog is diagnosed with hip dysplasia using X-rays, the vet can determine whether the disease is in a mild, moderate, or severe stage.

• #1 Diagnosis, prevention, and management of canine hip dysplasia: a review

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6070021/

  Radiography has long been the gold standard to assess and quantify joint changes associated with CHD joint remodeling. […] The Orthopedic Foundation for Animals evaluation is performed on hip-extended radiographs performed under heavy sedation or general anesthesia by three independent board-certified radiologists. […] The British Veterinary Association/Kennel Club maintains a pass/fail evaluation system that was instituted in 1965 and updated in 1984. […] The Fdration Cynologique Internationale (FCI) is one of the largest canine organizations in the world and includes kennel clubs from across Europe, Asia, Africa, and South America. […] The primary distinction of the Pennsylvania Hip Improvement Program (PennHIP) method is that passive hip joint laxity is measured in addition to subjective radiographic conformation.

• #1 Hip Dysplasia | OFA

  https://ofa.org/diseases/hip-dysplasia/

  Hip Dysplasia Screening Procedures […] Screenings for Hip Dysplasia are performed by a veterinarian with x-rays sent to OFA for grading and certification. […] The OFA classifies hips into seven different categories: Excellent, Good, Fair (all within Normal limits), Borderline, and then Mild, Moderate, or Severe (the last three considered Dysplastic). […] General Overview Radiographs submitted to the OFA should follow the American Veterinary Medical Association recommendations for positioning. […] For dogs that are between 4 months and 23 months of age, preliminary screenings are available. […] Once osteoarthritis is present on a radiograph, dysplastic changes are irreversible and usually continue to progress over time. […] Numerous drugs are available to control the signs of osteoarthritis secondary to canine Hip Dysplasia.

• #1 Hip Dysplasia Diagnosis in Dogs | The Balanced Dog

  https://the-balanced-dog.com/2018/12/31/hip-dysplasia-in-dogs-2/

  The OFA method is a single extended hip view that assesses the current state of the hip joint. […] The OFA evaluation does not require heavy sedation or general anesthesia and requires only one x-ray view. […] Vets have been using the same test used on newborns, to detect the presence of laxity in puppies since the 1980s. […] Ideally, the Ortolani test is performed during the puppy’s 10-16 week vaccination appointment. […] Early diagnosis can be critical in hip dysplasia. If hip dysplasia is diagnosed before nine months of age then there are surgical options available that are no longer available after this age.

• #1 Hip dysplasia: Symptoms, diagnosis and treatments to keep you moving well

  https://www.bswhealth.com/blog/hip-dysplasia-symptoms-diagnosis-treatments

  Hip dysplasia is a complex diagnosis that can be found with an exam and ultrasound when screening infants or with an X-ray in older children and adults. […] Typically, in hip dysplasia, the socket or acetabulum is shallow, leading to increased stress on the cartilage in the hip. […] The shallowness is not just in one single area, so proper radiographic imaging is necessary to fully understand and diagnose hip dysplasia. […] Hip dysplasia is a three-dimensional diagnosis, in all planes of the hip. […] The shape and rotation of the socket (acetabulum), as well as the ball (femur) are often affected in hip dysplasia and require special imaging. […] Therefore, special X-rays, computed tomography (CT), and magnetic resonance imaging (MRI) are often used to fully understand your condition.

• #2 Hip Dysplasia: Diagnosis & Treatment | NewYork-Presbyterian

  https://www.nyp.org/orthopedics/columbia-orthopedics/hip-dysplasia/treatment

  How is Hip Dysplasia Diagnosed? Diagnosis Pediatricians routinely screen for hip dysplasia. During a newborns physical exam and at well-baby check-ups, the doctor will move the babys legs to look for differences in mobility between the two hip joints and listen for any sounds when they move. One leg may look shorter than the other. The doctor may use ultrasound imaging to confirm a hip dysplasia diagnosis in a baby younger than six months. […] For older children as well as adults, these imaging tests help the doctor make a diagnosis: X-ray: Shows the shapes of bones in the hip joint […] MRI (magnetic resonance imaging): Used to distinguish between bone and cartilage, and to identify a labral tear […] 3D CT (computed tomography): Creates a detailed, three-dimensional image of the bones in the hip joint.

• #2 Developmental Dysplasia of the Hip | AAFP

  https://www.aafp.org/pubs/afp/issues/2006/1015/p1310.html

  Developmental dysplasia of the hip refers to a continuum of abnormalities in the immature hip that can range from subtle dysplasia to dislocation. The identification of risk factors, including breech presentation and family history, should heighten a physicians suspicion of developmental dysplasia of the hip. Diagnosis is made by physical examination. Palpable hip instability, unequal leg lengths, and asymmetric thigh skinfolds may be present in newborns with a hip dislocation, whereas gait abnormalities and limited hip abduction are more common in older children. […] The term developmental dysplasia of the hip (DDH) has replaced congenital dislocation of the hip because it more accurately reflects the full spectrum of abnormalities that affect the immature hip. DDH can predispose a child to premature degenerative changes and painful arthritis. Careful physical examination is recommended as a screening tool; early diagnosis helps improve treatment results and decrease the risk of complications.

• #2 Developmental Dysplasia of the Hip (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/ddh.html

  Developmental dysplasia of the hip (DDH) is a problem with the way a baby’s hip joint forms. […] Doctors find most cases of DDH during well-child exams. If a baby has signs of DDH or has a higher risk for it, the doctor will order tests. […] Two tests help doctors check for DDH: An ultrasound uses sound waves to make pictures of the baby’s hip joint. This works best with babies under 6 months of age. That’s because most of a baby’s hip joint is still soft cartilage, which won’t show up on an X-ray. An X-ray works best in babies older than 4-6 months. At that age, their bones have formed enough to see them on an X-ray.

• #2 Developmental Dysplasia of the Hip – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563157/

  The American Institute of Ultrasound in Medicine and the American College of Radiology recommend hip US to visualize acetabular dysplasia, hip dislocation, femoral head anatomy, ligament teres, and the hip capsule. The most important finding to identify is femoral head coverage by the acetabulum, a minimum of 50%, and depth of the bony acetabulum, known as the alpha angle, where a finding exceeding 60 is considered normal. […] If x-ray studies are used to evaluate developmental dysplasia of the hip, the following findings can help identify hip abnormalities: Hilgenreiner line, Perkin line, Shenton line, acetabular index, and the center-edge angle of Wiberg. […] The treatment of developmental dysplasia of the hip depends on the patient’s age and the severity of the dysplasia. In cases of minor hip instability (Barlow positive, Ortalani negative), spontaneous recovery occurs in 90% of cases within the first 2 weeks of life.

• #2 Developmental Dysplasia of the Hip (DDH) Workup: Ultrasonography, Plain Radiography, CT and MRI

  https://emedicine.medscape.com/article/1248135-workup

  The acetabular index is the angle between the Hilgenreiner line and the line drawn from the triradiate cartilage to the lateral edge of the acetabulum. Typically, this angle decreases with age and should measure less than 20 by 2 years of age. Shenton line is drawn from the medial aspect of the femoral neck to the inferior border of the pubic rami. It should create a smooth arc that is not disrupted. Disruption of the Shenton line indicates the presence of some degree of hip subluxation. […] Computed tomography (CT) can also be helpful in determining femoral anteversion and in determining the extent of posterior acetabular coverage. Magnetic resonance imaging (MRI) can be beneficial in identifying the underlying bony and soft-tissue anatomy. One study evaluated MRI findings in pediatric orthopedic patients who showed residual subluxation after reduction of DDH. The subjects in the surgery arm of the study showed the presence of a high-signal intensity area (HSIA) within the weight-bearing portion of the acetabular cartilage preoperatively, which decreased or disappeared after the surgical procedure. In the conservative arm, those with HSIAs demonstrated poor acetabular growth and those without HISAs showed acetabular growth. The researchers concluded that HSIAs on MRI may be a marker for poor acetabular growth, which would make these areas valuable findings in corrective surgery decision-making.

• #2 Royal Orthopaedic Hospital – Hip Dysplasia in Teenagers and Young Adults

  https://roh.nhs.uk/services-information/hips/hip-dysplasia-in-teenagers-and-young-adults

  How is Hip Dysplasia Diagnosed? Plain X-ray is the primary imaging technique used for diagnosis of hip dysplasia. An X-ray shows the bony anatomy, it does not look at soft tissue issues. […] Important x-ray measurements include: The lateral centre-edge (LCE) – LCE angle is the most important angle to measure the lateral coverage of the socket over the femoral head, it measures from the centre of the head of femur (HOF) to the edge of the socket. An LCE of 18-25 is defined as mild or borderline dysplasia. An LCE of less than 18 degrees is defined as significant dysplasia. […] There are many other x-ray measurements which may be used to help in the diagnosis of hip dysplasia, but the main ones are the ones here: Alpha Angle – Indicates femoral head roundness. Shentons line – Indicates if the ball is sitting within the socket or not. Crossover sign – Indicates if the socket is orientated backwards. Anterior centre-edge angle – Measures coverage over the front of the socket. FEAR index – Predicts stability of the joint. Tonnis grade – Detects how much osteoarthritis is present.

• #2 Hip Dysplasia | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/hip-dysplasia

  Doctors typically use a variety of tests to determine if dysplasia is the source of hip pain in adolescents and young adults. The first step is a thorough patient history and physical exam. The doctor will check your hip for range of motion. They may order imaging studies such as an X-ray, MRI, or CT scan to confirm the diagnosis. Ultrasound-guided diagnostic injection can help your doctor determine the location of your hip pain with greater precision. […] The condition ranges from a mild abnormality of the hip socket to a complete dislocation of the hip. As children become more active and demand more of their legs, the ill-fitting hip joint becomes unstable. The instability damages cartilage inside the joint that becomes increasingly painful over time. It is important not to ignore hip pain. Hip dysplasia is a treatable condition but early diagnosis and treatment are critical to preventing irreversible damage.

• #2 Royal Orthopaedic Hospital – Hip Dysplasia in Teenagers and Young Adults

  https://roh.nhs.uk/services-information/hips/hip-dysplasia-in-teenagers-and-young-adults

  Other imaging investigations MRI scan A scan that takes pictures of your pelvis, to show the bone, cartilage, ligament, tendon and labrum in more detail. MRI scans are often used to assess the condition of the joint and to help decide on treatment options. […] MRI Arthrogram Dye or contrast is injected into the joint and then an MRI scan performed – this helps to highlight where contrast is leaking from the joint- indicating a labral tear. […] CT Scan Provides a 3D image reconstruction of the bone anatomy which will help diagnose complex multidirectional deformity and aid with surgical planning. […] Arthroscopy Also called Keyhole surgery. The surgeon looks inside the joint to help diagnose your hip problem. In some cases it can be used to treat certain hip problems too. It is recommended that you are seen by a specialist in Young Adult Hip conditions, as they are usually best placed to accurately diagnose your hip problem, rather than a general orthopaedic doctor.

• #2 Diagnosis – Hip Dysplasia Life

  https://www.hipdysplasialife.org/diagnosis

  Some people are diagnosed with hip dysplasia as an infant and have a series of interventions as children and young adults. […] For others, hip dysplasia isnt diagnosed until symptoms occur much later, in their twenties, thirties or beyond. […] For those not diagnosed as children, the journey to a diagnosis as an adult can be lengthy and at times, very frustrating. […] People with hip dysplasia can have many consultations with different health care professionals before a diagnosis of hip dysplasia is eventually given. […] In a study with 97 people diagnosed with hip dysplasia in adulthood, 22 had received a diagnosis and began some form of treatment within 12 months, while the majority (75) had experienced a late/delayed diagnosis and thus delayed treatment. […] Although the aim of the study was not to identify the reasons for delayed diagnosis, the authors conclude that hip dysplasia is an under-recognised condition – in both the general public and among doctors.

• #2 Diagnosis – Hip Dysplasia Life

  https://www.hipdysplasialife.org/diagnosis

  They found that some participants pain and symptoms were perceived to be coming from a soft tissue injury by GPs and physiotherapists. […] On average, research studies show that it can take 6-8 years for adults with hip dysplasia to be diagnosed. […] Other research suggests that difficulty identifying mild hip dysplasia on scans such as x-rays and MRIs might play a part in missed and delayed diagnosis. […] Some people with hip dysplasia are initially diagnosed with a labral tear and it can be difficult to know whether surgery or conservative (non-surgical) treatment is best. […] A delayed diagnosis features in many (too many) of our stories. […] The importance of being and feeling heard marks a turning point for many of us. […] For some women with hip dysplasia pregnancy can mask or show hip dysplasia symptoms.

• #2 Hip Dysplasia: Diagnosis and Treatment

  https://brettshoremd.com/hip-dysplasia/

  Hip dysplasia, also known as developmental dysplasia of the hip (DDH), is a condition where the hip joint does not properly form. […] Diagnosis typically involves a complete medical history, physical examination, and X-ray evaluation. In some cases, additional imaging such as MRI or CT scans may be required. […] Early diagnosis and treatment are crucial for preventing complications such as osteoarthritis, pain, and mobility issues. Routine screening for DDH is part of newborn physical examinations and infant screening at 6 to 8 weeks of age. If there are risk factors or symptoms present, an ultrasound scan of the hip is recommended between 4 and 6 weeks old. […] Hip dysplasia is a condition that, if left untreated, can lead to significant health issues including early-onset osteoarthritis and the need for hip replacement surgery. However, with early diagnosis and appropriate treatment, many individuals can lead normal, active lives without significant limitations.

• #2 Diagnosing hip dysplasia (Proceedings)

  https://www.dvm360.com/view/diagnosing-hip-dysplasia-proceedings

  Hip dysplasia is the most common developmental orthopedic disease in dogs. […] Screening for hip dysplasia in young dogs is important for treating affected individuals as well as for making breeding recommendations for owners. […] Affected animals may present with a variety of clinical signs, including: a bunny hopping gait, difficulty rising, jumping or stair climbing, exercise intolerance, behavior change, or unilateral lameness. […] For the veterinarian discussing treatment options, the important distinction to make is between young animals with joint laxity but no degenerative changes, and animals of any age with degenerative joint disease. […] Gait evaluation is useful for assessing changes in locomotion in patients compensating for hind limb discomfort or dysfunction. […] Coxofemoral laxity is the hallmark of hip dysplasia in young dogs.

• #2 Diagnosis, prevention, and management of canine hip dysplasia: a review

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6070021/

  Radiography has long been the gold standard to assess and quantify joint changes associated with CHD joint remodeling. […] The Orthopedic Foundation for Animals evaluation is performed on hip-extended radiographs performed under heavy sedation or general anesthesia by three independent board-certified radiologists. […] The British Veterinary Association/Kennel Club maintains a pass/fail evaluation system that was instituted in 1965 and updated in 1984. […] The Fdration Cynologique Internationale (FCI) is one of the largest canine organizations in the world and includes kennel clubs from across Europe, Asia, Africa, and South America. […] The primary distinction of the Pennsylvania Hip Improvement Program (PennHIP) method is that passive hip joint laxity is measured in addition to subjective radiographic conformation.

• #2 Diagnosing hip dysplasia (Proceedings)

  https://www.dvm360.com/view/diagnosing-hip-dysplasia-proceedings

  It is important to remember that the periarticular fibrosis and acetabular remodeling seen with advancing hip dysplasia will eliminate the ability to palpate an Ortolani sign in dogs with joint laxity. […] Radiographs are an essential tool for diagnosing and planning treatment for hip dysplasia. […] The ventrodorsal extended hip view is the oldest of the currently used radiographic exams, and it remains the most widespread in its use. […] In the young dog with hip dysplasia, the earliest abnormality visible on ventrodorsal extended hip view is subluxation of the femoral head. […] The Penn Hip Improvement Program (PennHIP) technique is a more quantitative assessment of hip joint laxity. […] The dorsal acetabular rim (DAR) view was developed to allow accurate assessment of the weight-bearing portion of the acetabulum, and to plan the required rotation for a triple pelvic osteotomy. […] The dorsolateral subluxation score and a modified PennHIP technique have also been described.

• #2 Hip Dysplasia Diagnosis in Dogs | The Balanced Dog

  https://the-balanced-dog.com/2018/12/31/hip-dysplasia-in-dogs-2/

  Hip dysplasia is a condition that develops in dogs as they grow. […] By using specially positioned hip x-rays (PennHip and OFA) and physical examination your Vet can determine the presence of hip deformity and abnormal hip joint laxity. […] If your dog is an at-risk breed, the ideal time to examine them for pathologic hip laxity is when they are being desexed. The PennHip method can be performed from 16 weeks of age. […] The PennHIP method is the most accurate x-ray method for detecting hip dysplasia and laxity in young puppies (from 16 weeks of age). […] The x-rays use a distraction index (DI) to measure the amount of hip laxity that is present when your puppy’s legs are placed in certain positions, and gauges how much of the ball is covered by the socket. […] A simpler option is the OFA (Orthopedic Foundation for Animals) method.

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