高位脛骨骨切り術における膝関節面開き角の検討

抄録

The investigation presented here is intended to outline changes of lateral joint opening angle (LJOA) of the knee in twenty-seven patients measured pre and postoperatively in connection with high tibial osteotomy. LJOA is the angle which is made between the line connecting bilateral femoral condyles and the line connecting bilateral tibial plateaus in antero-posterior roentgenogram. The results indicate that LJOA of postoperative standing position is almost equal to that of preoperative supine position and is 3.0 degrees smaller than that of postoperative standing position. This suggests that the correct angle in high tibial osteotomy had better be determined in the preoperative X-ray film of supine position.