Ranawat C S, Rao R R, Rodriguez J A, Bhende H S
Center for Total Joint Replacement, Lenox Hill Hospital, New York, New York, USA.
J Arthroplasty. 2001 Sep;16(6):715-20. doi: 10.1054/arth.2001.24442.
Although several methods of intraoperative limb-length measurements have been described, their success in predicting the limb-length correction is not well documented. A new technique of measuring intraoperative limb lengthening using a vertical Steinmann pin at the infracotyloid groove of the acetabulum was studied in 100 consecutive primary total hip arthroplasties. Correlation of the predicted intraoperative correction was done with the postoperative radiographic measurements. Preoperative limb-length inequality ranged from -24 mm (short) to +2 mm (long) (mean, -4.2 mm). Intraoperative measurement of lengthening ranged from 0 to 15 mm (mean, 5.9 mm). Radiographic measurements of postoperative radiographs showed lengthening ranging from 0 to 17 mm (mean, 7.4 mm). There was significant correlation between the 2 values (r =.84). Postoperative limb-length inequality ranged from -7 mm to +8 mm (mean, 1.9 mm). None of the patients had to use shoe lifts for equalization of limb lengths.
虽然已经描述了几种术中肢体长度测量方法，但它们在预测肢体长度矫正方面的成功率尚无充分文献记载。在100例连续的初次全髋关节置换术中，研究了一种在髋臼下盂肱沟使用垂直斯氏针测量术中肢体延长的新技术。将预测的术中矫正与术后X线测量结果进行相关性分析。术前肢体长度不等范围为-24mm（短）至+2mm（长）（平均-4.2mm）。术中延长测量范围为0至15mm（平均5.9mm）。术后X线片的测量显示延长范围为0至17mm（平均7.4mm）。这两个值之间存在显著相关性（r = 0.84）。术后肢体长度不等范围为-7mm至+8mm（平均1.9mm）。没有患者需要使用鞋垫来平衡肢体长度。
