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Hip abductor function in adults treated for Perthes disease
Véronique F P Plasschaert1, Herwin L D Horemans, Luuk M de Boer
1Department of Rehabilitation Medicine, Erasmus MC-University Medical Centre, Rotterdam, The Netherlands.
Journal of Pediatric Orthopedics. Part B
|April 8, 2006
Summary
Adults treated for Perthes disease with poor clinical outcomes showed less hip abductor strength. Inefficient hip abductor function during gait at the affected hip is linked to poorer results in Perthes disease patients.
Area of Science:
- Orthopedics
- Biomechanical analysis
- Pediatric orthopedics
Background:
- Perthes disease can impact hip joint development and function.
- Assessing hip abductor strength is crucial for evaluating functional recovery after Perthes disease treatment.
Purpose of the Study:
- To investigate hip abductor function in adults treated for Perthes disease.
- To correlate hip abductor function with clinical outcomes using the IOWA hip-rating scale.
Main Methods:
- Isokinetic dynamometry was used to measure hip abductor strength.
- Gait analysis assessed hip abductor function during walking.
- Patients were grouped based on clinical results (IOWA score >90 vs. <90).
Main Results:
- Patients with poor clinical results demonstrated a significantly lower peak abduction moment (P=0.01).
- Inefficient hip abductor function, indicated by a higher hip abductor moment during gait as a percentage of peak abduction at the affected hip, was observed in the poor outcome group (P=0.047).
Conclusions:
- Reduced hip abductor strength and inefficient function are associated with poorer clinical results in adults treated for Perthes disease.
- Targeted rehabilitation of hip abductor muscles may improve functional outcomes in Perthes disease survivors.