Mehra Akshay, Moriso Zachary N, Schemitsch Emil, Waddell James
Alexandra Hospital Birmingham, United Kingdom.
St. Michael's Hospital Toronto, Ontario, Canada.
Surg Technol Int. 2013 Sep;23:258-60.
Leg length discrepancy post total hip arthroplasty surgery is common. Unequal leg lengths after total hip arthroplasty is the single most common reason for litigation against orthopaedic surgeons. Different methods for leg length assessment are used intraoperatively by surgeons, but no one method is 100% reliable and reproducible. The aim of this study was to compare 2 methods of intraoperative leg length assessment. Leg length discrepancy of 5 mm or less was achieved in 72.5% (37/51) of patients using method 1 and in 67% (34/51) of patients using method 2. Both methods assessed produced a discrepancy of greater than 5 mm in about a quarter of the patients. The difference was not found to be statistically significant (p < 0.05). Assessment of leg lengths intraoperatively is challenging even for experienced surgeons. The leg lengths may be better restored if more than one method of assessment is used during surgery.
全髋关节置换术后肢体长度不等很常见。全髋关节置换术后双下肢长度不等是针对骨科医生提起诉讼的最常见单一原因。手术中外科医生会使用不同的方法来评估肢体长度，但没有一种方法是100%可靠且可重复的。本研究的目的是比较两种术中肢体长度评估方法。使用方法1的患者中有72.5%（37/51）实现了5毫米或更小的肢体长度差异，使用方法2的患者中有67%（34/51）实现了这一差异。两种评估方法在约四分之一的患者中都产生了大于5毫米的差异。未发现差异具有统计学意义（p<0.05）。即使对于经验丰富的外科医生来说，术中评估肢体长度也具有挑战性。如果在手术中使用不止一种评估方法，肢体长度可能会得到更好的恢复。
