title: Coxa vara, avascular necrosis and osteochondritis dissecans complicating solitary bone cysts of the proximal femur.
abstract: In 2 children with cysts in the upper end of the femur, there were 3 complications: coxa vara, avascular necrosis and osteochondritis dissecans. Coxa vara occurred in both cases and was due in 1 case to pathological fracture, and in the other case to growth disturbance. Avascular necrosis of the femoral head, a hitherto unreported complication of bone cyst of the upper end of the femur occurred in 1 patient following pathological fracture and resulted in osteochondritis dissecans of the femoral head.
mesh_terms: D001845:Bone Cysts / Q000150:complications* / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D005265:Femoral Neck Fractures / Q000150:complications; D005269:Femur; D005271:Femur Head Necrosis / Q000150:complications*; D005272:Femur Neck; D006621:Hip Joint; D006801:Humans; D007592:Joint Diseases / Q000150:complications; D008297:Male; D010007:Osteochondritis / Q000209:etiology*; D012008:Recurrence