[Central fracture-dislocation of the hip joint. Clinical analysis of 40 cases].

From 1957 to 1986, 40 cases of central fracture-dislocation of hip joint, 36 fresh and 4 old, were treated. Classification concerning the lesional patterns, indications for operative and non-operative treatment together with the factors affecting prognosis were discussed. In conclusion firstly, treatment by means of traction, simple and easy to handle, is well suited to most cases, if reduction has been satisfactory and maintained well, permitting early motion, for sufficient period of time for healing. Secondly, operation is only fit for fracture-dislocation, of which reduction has not been good enough and that it would not subject the patient to much surgical risk. Lastly, poor reduction, traction time not long enough, accetabular roof fracture or femoral head fracture and extensive damage or concomitant fracture of the same limb are the recessive factors influencing outcome.