Developmental dysplasia of the hip is a condition affecting babies and young children that can be successfully managed with early detection and appropriate care, helping most children grow into active, healthy individuals without long-term hip problems.

Understanding Treatment Goals for Hip Dysplasia

When a baby receives a diagnosis of developmental hip dysplasia, the main goal of treatment is to guide the hip joint to develop normally. This condition occurs when the ball at the top of the thighbone doesn’t fit properly into the hip socket, which can range from mild instability to complete dislocation. Without intervention, the hip joint may not grow correctly, potentially leading to pain during walking and early arthritis later in life.^[1]

Treatment approaches vary significantly depending on when the condition is discovered and how severe it is. A baby diagnosed within the first few weeks of life will typically need different care than a child diagnosed at six months or older. The earlier developmental dysplasia of the hip is identified, the better the chances that simple, non-surgical methods will successfully reposition the hip and allow it to develop normally.^[2]

Medical societies and pediatric orthopedic specialists have established standard treatment protocols that have proven effective over many years. At the same time, researchers continue investigating new approaches and refining existing methods to improve outcomes for children with this condition. The treatment journey may involve wearing special devices, regular monitoring through imaging studies, and in some cases, surgical procedures to ensure the hip joint functions properly throughout the child’s life.^[3]

Parents should understand that developmental hip dysplasia doesn’t typically cause pain in babies and young children, which can make it challenging to recognize at home. Healthcare providers routinely screen newborns and infants during well-child visits specifically to catch this condition early. The good news is that with prompt diagnosis and appropriate treatment, most children go on to participate fully in physical activities and sports as they grow.^[4]

Standard Treatment Approaches

The cornerstone of treating developmental hip dysplasia in babies diagnosed before six months of age is the Pavlik harness, a soft fabric device that has become the gold standard for early intervention. This harness consists of adjustable straps that attach to the baby’s shoulders, trunk, and legs, holding the ball of the hip joint in the correct position within the socket while still allowing the baby to move their legs freely. The properly positioned hip joint then has the opportunity to develop normally as the baby grows.^[3]

During treatment with the Pavlik harness, babies typically wear the device around the clock for the first six weeks, though some protocols may vary slightly. The harness remains on continuously during this initial period and should only be removed by a healthcare professional during follow-up appointments. After this intensive phase, the baby gradually transitions to wearing the harness for fewer hours each day, usually continuing for about another month. Throughout treatment, which generally spans six to twelve weeks total, the medical team monitors the hip’s progress through physical examinations and imaging studies.^[11]

Parents learn to perform daily care while their baby wears the harness. Diapers can be worn normally underneath the straps, and clothing should be one to two sizes larger than usual to fit comfortably over the device. If the harness becomes soiled, it can be spot-cleaned with detergent and a brush without being removed. Babies should sleep on their backs rather than their sides while wearing the harness. Some families notice mild skin irritation where the straps contact the baby’s skin, which can often be prevented by wrapping soft, clean material around the bands.^[3]

The success rate of Pavlik harness treatment is generally high when started early. However, some babies may not respond adequately to this approach. In such cases, healthcare providers may recommend alternative devices. The von Rosen splint represents one such option, made from a firm but bendable material that can be customized to fit around the baby’s shoulders and thighs. This splint works similarly to the Pavlik harness by supporting the hips in the optimal position, typically for six weeks or longer. Healthcare providers check and adjust the splint weekly and can temporarily remove it for bathing.^[16]

For babies diagnosed after six months of age or when earlier treatments haven’t achieved the desired result, a spica cast may be necessary. Unlike the soft Pavlik harness, this cast is hard and made of fiberglass, covering the child’s body from the chest or waist down to the legs. Before applying the cast, the doctor performs a procedure called reduction, which involves repositioning the femoral head back into the hip socket. This procedure is done under general anesthesia to ensure the child experiences no discomfort.^[3]

Reduction can be performed in two ways. Closed reduction means the doctor manipulates the hip bones into the proper position without making large surgical incisions. The spica cast is then applied to hold everything in place. In cases requiring open reduction, the surgeon makes an incision in the groin area to directly access and reposition the femoral head into the hip socket before applying the cast. Children typically wear a spica cast for at least twelve weeks initially. Around six weeks into treatment, doctors check the hip again under anesthesia to ensure stability and proper healing, after which a new cast is usually applied for at least another six weeks.^[3]

Living with a spica cast requires significant adjustments for families. The cast makes certain activities more challenging, but children can still be held, played with, and loved normally. Special car seats or positioning devices may be needed for safe transportation. Parents receive guidance on bathing techniques, diaper changes, and preventing skin problems under the cast edges. Despite these challenges, the cast effectively holds the hip in the optimal position for proper development.^[16]

Some children may also require osteotomy, which is bone surgery performed to correct deformities in either the hip socket or the femoral head. This procedure might be done during an open reduction or scheduled for a later date if bone abnormalities persist or develop. The surgeon reshapes or repositions the bones to improve how the ball and socket fit together, promoting better long-term hip function.^[3]

Throughout standard treatment, regardless of the specific approach used, regular follow-up appointments are essential. Healthcare providers track the hip’s development through physical examinations and imaging studies such as ultrasound or X-rays. The frequency and type of imaging depend on the child’s age and treatment stage. Ultrasound is typically more useful for babies under six months, while X-rays provide better information for older infants and children.^[4]

Side effects from standard treatments are generally mild and manageable. With harnesses and splints, some babies experience temporary skin irritation or redness where straps contact the skin. There’s a small risk of a complication called avascular necrosis, where blood supply to the hip is disrupted, potentially affecting bone growth. However, this risk is relatively low with proper device fitting and monitoring. Casts can cause skin problems if moisture becomes trapped or if edges rub against the skin, which is why careful cast care and monitoring are important.^[12]

Treatment in Clinical Trials

While standard treatments for developmental hip dysplasia have proven effective over decades of use, researchers continue exploring ways to improve outcomes, reduce treatment duration, and minimize complications. Clinical trials and research studies investigate various aspects of diagnosis and management, though much of the innovation focuses on refining existing approaches rather than testing entirely new medications or therapies.

One active area of research involves improving early detection methods. Scientists are working to develop more sensitive imaging techniques that can identify subtle hip abnormalities before they progress to more severe dysplasia. Advanced ultrasound protocols and automated analysis systems are being studied to help doctors detect hip problems that might be missed during standard screening. These enhanced diagnostic tools could lead to even earlier intervention, potentially reducing the need for more intensive treatments later.^[4]

Researchers are also investigating optimal timing and protocols for Pavlik harness treatment. Clinical studies compare different wearing schedules, such as continuous use versus part-time wear, and evaluate whether certain babies might benefit from shorter treatment durations. Some trials examine personalized treatment approaches based on the severity of dysplasia and individual patient characteristics. The goal is to minimize the treatment burden on families while maintaining high success rates.^[13]

For children requiring surgical intervention, ongoing research focuses on refining surgical techniques and developing less invasive approaches. Studies evaluate different methods of performing osteotomy procedures, comparing outcomes between various surgical angles and fixation methods. Three-dimensional surgical planning tools using advanced imaging are being tested to help surgeons achieve more precise bone repositioning. These technological advances may lead to better long-term hip function and potentially shorter recovery times.^[12]

Another research direction involves understanding the biomechanics of dysplastic hips using computer modeling and simulation. Scientists create virtual models of hip joints to study how different treatment approaches affect forces across the joint and predict long-term outcomes. This computational research helps explain why certain treatments work better than others and may guide the development of improved devices or surgical techniques in the future.

Some research centers are exploring the role of biomarkers in hip dysplasia, investigating whether specific proteins or other substances in the blood or joint fluid can help predict which babies will respond well to conservative treatment and which might need more aggressive intervention. These predictive markers could eventually help doctors personalize treatment plans from the very beginning, though this research is still in early phases.

Studies are also examining the genetic factors contributing to developmental hip dysplasia. Researchers have identified multiple genetic locations that appear more common in families with hip dysplasia, though no single gene causes the condition. Understanding the genetic contribution could eventually lead to better risk prediction and perhaps targeted preventive strategies, though practical applications of this knowledge remain in the future.^[4]

For adolescents and young adults with hip dysplasia that wasn’t treated in childhood or that persists despite early treatment, research continues into advanced surgical options. One procedure called periacetabular osteotomy (PAO) involves repositioning the hip socket to better cover the ball of the femoral head. Studies are evaluating optimal patient selection criteria, surgical timing, and rehabilitation protocols for this complex procedure. Research suggests that PAO can delay or prevent the need for total hip replacement in young adults with symptomatic dysplasia, though long-term outcome studies are ongoing.^[11]

The use of regenerative medicine approaches is also being explored, though this remains largely experimental. Some researchers are investigating whether stem cell therapies or growth factors could enhance cartilage healing in dysplastic hips or improve outcomes after surgical procedures. However, these approaches are in very early research stages and are not yet part of standard clinical practice for developmental hip dysplasia.

International collaboration among researchers has led to the creation of large patient registries that track treatment outcomes across multiple countries. These databases help identify which treatments work best for different types and severities of hip dysplasia. By analyzing data from thousands of patients, researchers can detect subtle patterns that might not be apparent in smaller studies, leading to evidence-based refinements in treatment protocols.

Most clinical research in developmental hip dysplasia occurs at specialized pediatric orthopedic centers in the United States, Europe, Canada, and Australia. Families interested in learning about current studies can ask their child’s orthopedic specialist about research opportunities or visit clinical trial registries to find studies accepting participants. However, it’s important to understand that because effective standard treatments already exist for most cases of hip dysplasia, experimental approaches are typically reserved for unusual situations or when standard treatments have not succeeded.

Most Common Treatment Methods

• Pavlik Harness
  • Soft fabric device with adjustable straps that secure to the baby’s shoulders, trunk, and legs to hold the hip in proper position
  • Worn continuously for approximately six to twelve weeks, with the device adjusted during follow-up appointments
  • Most effective when started in babies younger than six months of age
  • Allows the hip socket and ligaments to develop normally while maintaining proper positioning
  • Can be worn under clothing sized one to two sizes larger than usual
• Von Rosen Splint
  • Firm, bendable material customized to fit around the baby’s shoulders and thighs
  • Alternative to Pavlik harness when that device doesn’t achieve desired results
  • Typically worn for six weeks or longer with weekly adjustments by healthcare providers
  • Can be temporarily removed for bathing by trained professionals
• Spica Cast
  • Hard fiberglass cast covering the body from chest or waist down through the legs
  • Applied after closed or open reduction procedure performed under general anesthesia
  • Used when baby is diagnosed after six months of age or when harness treatment hasn’t worked
  • Initially worn for at least twelve weeks, with cast change around six weeks to check progress
  • Requires significant family adjustment but effectively holds hip in optimal position
• Closed Reduction
  • Procedure performed under general anesthesia to reposition the femoral head into the hip socket
  • Done without making large surgical incisions
  • Followed by application of spica cast to maintain the corrected position
  • Hip checked again under anesthesia after six weeks to ensure stability
• Open Reduction
  • Surgical procedure involving an incision in the groin area to directly access the hip joint
  • Allows surgeon to place the femoral head into the hip socket under direct visualization
  • May be necessary when closed reduction is not feasible or successful
  • Followed by spica cast application for at least twelve weeks
• Osteotomy
  • Bone surgery to reshape or reposition the hip socket or femoral head
  • Corrects bone deformities that prevent proper ball-and-socket fit
  • May be performed during open reduction or scheduled as a separate procedure
  • Helps improve long-term hip function and stability