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Acetabular remodelling in Perthes' disease after primary healing
M Kamegaya1, Y Shinada, H Moriya
1Division of Orthopaedic Surgery, Chiba Children's Hospital, Japan.
Journal of Pediatric Orthopedics
|May 1, 1992
Summary
Children with Perthes
Area of Science:
- Pediatric Orthopedics
- Developmental Biology
Background:
- Perthes' disease affects the hip joint in children, potentially leading to long-term complications.
- Acetabular remodeling is crucial for hip function after Perthes' disease.
Purpose of the Study:
- To evaluate the acetabular remodeling potential in children diagnosed with Perthes' disease.
- To identify factors influencing acetabular growth and remodeling following femoral head healing.
Main Methods:
- Retrospective analysis of 29 children with Perthes' disease.
- Measurement of the acetabular head index (AHI) from primary healing to skeletal maturity.
- Classification of cases based on AHI increase percentage.
Main Results:
- The acetabular head index (AHI) increased in most patients (25/29) between femoral head healing and skeletal maturity.
- 44.8% of cases showed an AHI increase exceeding 10% (Group I).
- In Group I, decreased subluxation during the active phase predicted favorable outcomes.
Conclusions:
- Acetabular remodeling is a significant process in children with Perthes' disease.
- Femoral head position, not sphericity, is the primary driver of acetabular growth and remodeling.
- Early management focusing on femoral head positioning may improve long-term hip joint outcomes.