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Surgical Technique of the 3-Dimensional-printed Personalized Hip Implant for the Treatment of Canine Hip Dysplasia
Published on: April 19, 2024
Developmental dysplasia of the hip from six months to four years of age
1Orthopaedic Surgery, Children's Hospital of New York, New York-Presbyterian Medical Center, New York, NY, USA.
Insights
Developmental dysplasia of the hip (DDH) treatment varies by age. Newer approaches focus on specific hip conditions and avoiding femoral head osteonecrosis for better outcomes.
Area of Science:
- Orthopedics
- Pediatric Surgery
- Developmental Biology
Background:
- Developmental dysplasia of the hip (DDH) encompasses a range of hip abnormalities.
- Early diagnosis and Pavlik harness use yield excellent results in infants under 6 months.
- Treatment for DDH in older children (over 6 months) is more complex, aiming for concentric reduction and complication avoidance.
Purpose of the Study:
- To review current treatment modalities for developmental dysplasia of the hip in children.
- To highlight the shift in treatment focus from age-based to condition-specific management.
- To emphasize strategies for minimizing iatrogenic osteonecrosis of the femoral head.
Main Methods:
- Review of established and evolving treatment strategies for DDH.
- Analysis of outcomes associated with various interventions like bracing, traction, and surgical osteotomies.
- Discussion of factors influencing the risk of osteonecrosis.
Main Results:
- Pavlik harness is highly effective for early-stage DDH (infants < 6 months).
- For older children, achieving hip reduction requires diverse methods including bracing, traction, and osteotomies.
- Avoiding extreme hip abduction and utilizing femur-shortening osteotomies reduce osteonecrosis incidence.
- Pelvic osteotomy is increasingly favored for DDH in children over 18 months.
Conclusions:
- Modern DDH management prioritizes addressing the specific pathology over solely relying on patient age.
- Minimizing iatrogenic osteonecrosis is a key consideration, achieved through careful technique and surgical choices.
- Pelvic osteotomy represents a valuable surgical option for select older DDH patients.
Abstract:
Developmental dysplasia of the hip (DDH) denotes a wide spectrum of pathologic conditions, ranging from subtle acetabular dysplasia to irreducible hip dislocation. When DDH is recognized in the first 6 months of life, treatment with a Pavlik harness frequently results in an excellent outcome. In children older than 6 months, achieving a concentrically reduced hip while minimizing complications is more challenging. Bracing, traction, closed reduction, open reduction, and femoral or pelvic osteotomies are frequently used treatment modalities for children aged 6 months to 4 years. In the past, treatment recommendations have often been based on the patient's age. However, recent practice has placed more emphasis on addressing the specific disorder and avoiding iatrogenic osteonecrosis. The incidence of osteonecrosis of the femoral head has been reduced by avoiding immobilization of the hip in extreme abduction and by using femur-shortening osteotomies when appropriate. Pelvic osteotomy continues to gain favor for the treatment of selected patients over 18 months of age.
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