To minimize leg length discrepancy intraoperatively, which approach is recommended?

• A. Preoperative templating
• B. Intraoperative measurement
• C. Use of trial components
• D. All of the above

Answer: (D)

Minimizing leg length discrepancy during arthroplasty comes from coordinating planning with real-time verification. Preoperative templating sets an estimated leg length and offset by using radiographs to plan component sizes and positions, giving a target to achieve. Intraoperative measurement provides immediate feedback after trial reductions, allowing the surgeon to assess and adjust limb length and alignment before final implants are chosen. Using trial components lets the team evaluate soft-tissue tension, stability, and the practical effect of the planned lengths in the actual surgical field, enabling adjustments in situ. Each method checks different potential sources of error, so together they offer the most reliable way to prevent discrepancies. Hence, all of the above are recommended.