Femoral neck fracture fixation with hook-pins

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Abstract
We performed a prospective 2-year follow-up study of 626 consecutive femoral neck fractures treated with closed reduction and hook-pin fixation in all cases. The woman:man ratio was 2.9:1, the dis-placediundisplaced fracture ratio 2.6:1. Mean patient age was 78 (18-100) years. The first 476 fractures were operated on by one of six surgeons with special interest in the technique, while the remaining operations were performed by any of the 35 surgeons in the department, all specialists in orthopedic surgery. Mortality within two years was 31 percent. Healing complications (redisplacement, nonunion or segmental femoral head collapse) in the total material/survivors only were for undisplaced fractures 5/7 percent, for displaced fractures 30/41 percent and for the total material 23/32 percent. According to life-table analysis, the complication rate in the total material at two years was 24 percent. The rate of secondary arthroplasty for healing complications was 13/19 percent. For displaced fractures, as well as for the total material, the group of specially interested surgeons had better results than the department as a whole.