Improvement in Central Sensitization Following Total Knee Arthroplasty Is Associated With Severe Preoperative Pain and Affects Postoperative Quality of Life: A Retrospective Study - Hae Seok Koh; Yoon‐Chung Kim; DoJoon Park; Mu Hyun Kang; Youn‐Ho Choi (Orthopaedic Surgery, 2025)