“…Various methods of measuring limb length change during surgery include comparing the dimensions of the resected bone with the dimensions replaced by the prosthesis [12,57,58], comparing the distance between the center of the trial head and the lesser trochanter [30,43], the use of mechanical jigs and measuring calipers [6,22,37,44], or the use of reference pins driven into the pelvis [3,21,31]. Some surgeons advocate the use of computer-assisted methods [33,41,55]. We did not compare preoperative and postoperative LLDs.…”