在1058例股骨骨骼标本中，后髁偏移存在重要差异。
Important Differences Exist in Posterior Condylar Offsets in an Osteological Collection of 1,058 Femurs.
作者信息
Weinberg Douglas S, Streit Jonathan J, Gebhart Jeremy J, Williamson Drew F K, Goldberg Victor M
机构信息
Department of Orthopaedic Surgery, University Hospitals Case Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
出版信息
J Arthroplasty. 2015 Aug;30(8):1434-8. doi: 10.1016/j.arth.2015.02.027. Epub 2015 Feb 28.
Posterior condylar offset (PCO) has important implications in total knee arthroplasty (TKA) function and design. In an osteological study of 1,058 femurs, we measured PCO using two separate techniques with a 3D digitizer. Measurements were standardized for the size of the femur. The medial PCO was greater than lateral PCO (32.6mm vs. 31.2mm, P<0.0001). In 53% of individuals, the medial PCO differed between sides by more than 2mm. Age did not affect standardized medial or lateral PCO. Compared with African-Americans, Caucasians had a larger standardized medial (1.3mm vs. 1.2mm, P=0.006) and lateral (1.1mm vs. 1.0mm, P=0.004) PCOs. The standardized medial (1.2mm vs. 1.3mm, P=0.073), and lateral (1.1mm vs. 1.1mm, P=0.098), PCO did not differ between men and women, respectively.
后髁偏移（PCO）在全膝关节置换术（TKA）的功能和设计中具有重要意义。在一项对1058根股骨的骨学研究中，我们使用三维数字化仪通过两种不同技术测量了PCO。测量值根据股骨大小进行了标准化。内侧PCO大于外侧PCO（32.6毫米对31.2毫米，P<0.0001）。在53%的个体中，两侧的内侧PCO差异超过2毫米。年龄不影响标准化的内侧或外侧PCO。与非裔美国人相比，白种人的标准化内侧PCO（1.3毫米对1.2毫米，P=0.006）和外侧PCO（1.1毫米对1.0毫米，P=0.004）更大。标准化的内侧PCO（1.2毫米对1.3毫米，P=0.073）和外侧PCO（1.1毫米对1.1毫米，P=0.098）在男性和女性之间没有差异。
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