Original Article Knee Surg Relat Res 2015;27(2):90-94 http://dx.doi.org/10.5792/ksrr.2015.27.2.90 pISSN 2234-0726 · eISSN 2234-2451

Knee Surgery & Related Research

Clinical Evaluation of the Root Tear of the Posterior Horn of the Medial Meniscus in Total Knee Arthroplasty for Osteoarthritis Eui-Sung Choi, MD and Sang-Jun Park, MD

Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea

Purpose: To investigate the incidence of root tears of the posterior horn of the medial meniscus in total knee replacement arthroplasty for knee osteoarthritis and retrospectively analyze clinical results and factors associated with root tears. Materials and Methods: There were 197 knees of 140 enrolled patients who had undergone total knee replacement arthroplasty between September 2010 and May 2014. The presence of a root tear of the posterior horn of the medial meniscus was confirmed in all patients. Statistical analysis was performed to investigate the correlation between root tears and the possible factors of meniscal tears including gender, age, severity of symptoms (visual analogue scale [VAS] score and medial joint line tenderness), grade of osteoarthritis (Kellgren-Lawrence grading scale), body mass index (BMI), varus deformity, and mechanical axis deviation. Results: Meniscal tears were observed in 154 knees (78.17%). The root tear had correlation with the severity of osteoarthritis (p