A simple and accurate method for determining leg length in primary total hip arthroplasty.

Reconstruction of appropriate leg length is an important part of soft-tissue balance in total hip arthroplasty (THA). Leg length discrepancy (LLD) is one of the more common reasons for litigation after otherwise successful THA. The purpose of the study reported here was to analyze the accuracy of using preoperative templating and intraoperative referencing of the well leg to determine postoperative leg length in unilateral primary THA.