Idiopathic chondrolysis of the hip: Long-term evolution

Idiopathic chondrolysis of the hip is characterized by the destruction of t he articular cartilage due to an unknown cause, principally affecting women during adolescence and producing premature degeneration of the hip. Twelve cases (11 patients) were reviewed at our hospital, with an average followu p period of 13.2 years, during which a clinical and radiologic study was pe rformed. Despite the treatment implemented, idiopathic chondrolysis of the hip causes progressive degeneration of the joint with the appearance of alm ost constant pain, stiffness, and anomalous positions. Radiologic studies s how concentric narrowing of the articular space, decrease in the width of t he femoral head and neck, and shortening of the affected member due to alte ration in the growth physis of the upper extremity of the femur.