Yanagimoto S
Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
Nihon Seikeigeka Gakkai Zasshi. 1991 Sep;65(9):731-44.
By CT scan, the author analyzed morphologically the proximal medullary canal of the femur in 52 cases of osteoarthritis of the hip. The purpose is to determine the stem shape of an artificial hip joint suitable for Japanese patients. The results were as follows: 1) The femoral head diameter indicated positive correlation with the height, the femoral length, the femoral shaft transverse diameter, and the medullary canal diameter. The proportionality of the femur was found in Japanese patients with osteoarthritis. 2) The femoral head offset indicated no correlation with any results obtained by various measurement. 3) The medullary canal diameter of the diaphysial portion as well as the ratio of the medullary canal to the femur increased with age. 4) The taper angle*, 3.8 degree on the average was positively correlated only with the medullary canal diameter. *"Taper angle" indicates the degree of tapering of the medullary canal.
通过CT扫描，作者对52例髋关节骨关节炎患者的股骨近端髓腔进行了形态学分析。目的是确定适合日本患者的人工髋关节柄的形状。结果如下：1）股骨头直径与身高、股骨长度、股骨干横径和髓腔直径呈正相关。在患骨关节炎的日本患者中发现了股骨的比例关系。2）股骨头偏移与各种测量结果均无相关性。3）骨干部分的髓腔直径以及髓腔与股骨的比例随年龄增加。4）平均为3.8度的锥角仅与髓腔直径呈正相关。“锥角”表示髓腔的逐渐变细程度。
