We report 18 cases of traumatic dislocation of the hip joints. According to Bray's classification, Type I 10 cases, Type II 3 cases, Type III 5 cases and except 2 cases of central dislocation, rest 16 cases were all posterior dislocations. Age varies from 18 to 72 (mean 39), Male 17 and female 1, Time interval from injury to reduction, 14 were within 24hr., the others were than 24hr., 17 cases were treated with closed reduction, only one with open reduction. Immobilization duration varies from 7-188 days, non-weight bearing from 13-218 days and follow-up duration 3-88 months.
According to Japan Orthopedic Association ‘Estimation of osteo-arthritis of the hip joint’, results were almost good in Type I but in Type II and III more careful follow-up were needed.
