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[Capsular retraction of the hip]
1Service de Rhumatologie, Hôpital Léopold Bellan, Paris.
Annales De Radiologie
|January 1, 1993
Summary
Capsular retraction of the hip, often diagnosed via reduced joint capacity, primarily presents with restricted movement. Surgical intervention is common, while medical cases may resolve with corticosteroid injections.
Area of Science:
- Orthopedic Surgery
- Radiology
- Rheumatology
Background:
- Capsular retraction of the hip is characterized by a reduced joint cavity capacity.
- Diagnosis relies on arthrography, though clinical signs are crucial.
- Secondary (surgical) capsular retraction is more prevalent than the medical form.
Purpose of the Study:
- To detail the diagnostic criteria for capsular retraction of the hip.
- To differentiate between surgical and medical forms of capsular retraction.
- To outline appropriate treatment strategies for each type.
Main Methods:
- Arthrography to measure hip joint cavity capacity.
- Clinical assessment of joint movement limitations (abduction, rotation, flexion).
- Review of associated conditions like synovial chondromatosis.
Main Results:
- Reduced joint capacity (≥25% reduction from normal 15 ml) indicates capsular retraction.
- Severe cases show capacities of 5 ml or less.
- Surgical capsular retraction, averaging 6.8 ml capacity, often co-occurs with synovial chondromatosis.
Conclusions:
- Arthrography is supportive, but clinical signs like restricted movement are key diagnostic indicators.
- Surgical capsular retraction requires capsulectomy and joint debridement.
- Medical capsular retraction, though rare, can be idiopathic or secondary to conditions like diabetes, with corticosteroid injections being the preferred treatment.