Chung Byung June, Kang Jong Yeal, Kang Yeon Gwi, Kim Sung Ju, Kim Tae Kyun
Knee and Spine Hospital, Seoul, Republic of Korea.
Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea.
J Arthroplasty. 2015 Jul;30(7):1220-7. doi: 10.1016/j.arth.2015.02.014. Epub 2015 Feb 18.
Anthropometric features of Asians femora and their clinical relevance with regard to TKA are not rigorously investigated. We attempted to determine how well current prostheses accommodate femoral anthropometric features of Koreans and whether the presence of condylar or trochlear overhang or underhang adversely affects functional outcomes. We hypothesized that current prostheses do not accommodate Korean female femora well, and that overhang or underhang would adversely affect outcomes. Condylar and trochlear mediolateral (ML) widths and condylar anteroposterior (AP) heights were measured, and ML/AP ratios were calculated in 1025 osteoarthritic knees that underwent TKA. Besides gender difference, wide individual variation exists in condylar and trochlear widths and ML/AP aspect ratios for given AP heights. Size options of current prostheses could not cover the wide ranges of ML widths for given AP heights. The knees with condylar overhang more than 4mm showed lower maximum flexion angle postoperatively (P=0.005).
亚洲人股骨的人体测量特征及其与全膝关节置换术（TKA）的临床相关性尚未得到严格研究。我们试图确定当前的假体对韩国人股骨人体测量特征的适配程度，以及髁或滑车的悬垂或不足是否会对功能结果产生不利影响。我们假设当前的假体不能很好地适配韩国女性股骨，并且悬垂或不足会对结果产生不利影响。测量了1025例行TKA的骨关节炎膝关节的髁和滑车的内外侧（ML）宽度以及髁的前后（AP）高度，并计算了ML/AP比率。除了性别差异外，对于给定的AP高度，髁和滑车宽度以及ML/AP纵横比存在很大的个体差异。当前假体的尺寸选项无法覆盖给定AP高度下ML宽度的广泛范围。髁悬垂超过4mm的膝关节术后最大屈曲角度较低（P = 0.005）。
