Open reduction of the dislocated hip in juvenile idiopathic arthritis: a case report.

An 8-year-old girl with systemic-onset juvenile idiopathic arthritis (JIA) required surgical reduction for a dislocated left hip joint following failure of skin traction for 1 week. Unaided walking was achieved by 3 months postoperatively. Incongruence and irregularity of the hip joint remained but may resolve with maturation. Joint laxity caused by synovitis, flexion/adduction contracture with pain, and acetabular dysplasia by growth disturbance apparently caused hip dislocation.