1997 年 46 巻 1 号 p. 185-187
During a seven-year period, 63 total hip replacements were performed in osteoarthritis patients; Seven dislocations occurred. Three hips had one dislocation, while the remaining 4 dislocated more than once. Six dislocations were posterior and one, anterior. Open reduction was done in one, revision was required in 4.
The angle and the height of the acetabular component of the roentgenograms were not significant between the control group and the dislocated group. The leg length (mean) in the surgery of the dislocated group was 9.5mm longer than that of the control group (p<0.01).