From 1992 to 1994, eighty-two patients with 82 displaced femoral neck fractures were operated on with Austin Moore prosthesis replacement at the Department of Orthopedics, Ratchaburi Hospital. There were 31 males and 51 females, their mean age was 68.4 years (range: 21-91 years). Sixty-two patients were seen at the average of 12.36 months' follow-up (range: 6-31 months). The clinical result was excellent 51.61 per cent, good 25.81 per cent, fair 11.29 per cent and poor 11.29 per cent. There were three cases of superficial wound infection, two cases of minor fissures or fractures during surgery, and two cases of stem loosening. Two patients died within 2 weeks post-operatively due to recurrent myocardial infarction.