抄録
We studied the results of osteosynthesis of 55 femoral neck fractures in elderly people. Two cases of re-fracture were excluded from analysis, and the remaining 53 cases were divided into two groups. One consisting of patients who underwent hemi-arthroplasty after osteosynthesis (re-op group, 9 cases), and the other which did not (non-re-op group, 44 cases). Unstable fractures showed a higher rate of re-operation than that of stable fractures. The Garden alignment index (GAI) of the lateral view was significantly lower in the re-op group than in the non-re-op group (P<0.05). The interval between the day of injury to operation was significantly longer in the re-op group than in the non-re-op group (P<0.05). These date suggested that we should take into consideration not only Garden classification, but the GAI of the lateral view of X-ray in deciding operative indications, and perform osteosynthesis as soon as possible.