Idiopathic chondrolysis of the hip.

摘要: The cases of nine patients (eleven hips) with idiopathic chondrolysis the hip were studied. Seven white and two Hispanic. age at onset ranged from eight to sixteen years (mean, 11.5 years). Four boys five girls. All had a decreased passive range motion hip, radiographic examination showed regional osteoporosis, premature closure femoral capital physis, narrowing joint space, lateral overgrowth head on neck. laboratory examinations negative for evidence infection or rheumatoid arthritis. An arthrotomy was done in seven patients. Specimens synovial tissue no growth culture, histological studies revealed only minimum signs inflammation. Histological articular cartilage normal. Treatment consisted administration acetylsalicylic acid therapeutic dosages maintain blood salicylate level fifteen twenty-five milligrams per cent, active non-loading exercise protected weight-bearing crutches, short-term traction overcome relieve contractures after biopsy, iliopsoas tenotomy lengthening three patients, an adductor myotomy one patient. At follow-up, 2.3 9.4 6.2 years), six either symptoms minor intermittent discomfort hip. On examination, although these restoration space they did have (lateral buttressing) acetabular margin osteophyte). In who disabling pain, deterioration evident examination. One resurfacing arthroplasty pain.