This study aimed to describe the demographics, clinical outcomes, and radiologic outcomes of patients who underwent meniscal root repair at a single, large academic institution. Patients who underwent meniscal root repair between January 2011 and April 2015 were identified. Patient demographics, injury characteristics, and intraoperative findings of medial femoral condyle chondromalacia and other concomitant pathology were retrospectively recorded. Enrolled patients returned to clinic for prospectively collected International Knee Documentation Committee (IKDC) subjective and objective forms, knee radiographs, and magnetic resonance imaging (MRI). A total of 25 root injuries (23 patients) were included in the final analysis. Majority of root injuries were medial menisci (68%) and repaired using transosseous pull-out technique (80%). Most patients (65%) were male, relatively young (median age = 37 years), overweight (median body mass index [BMI] = 26 kg/m²), and reported a traumatic event associated with their injury (60%). Also, 36% (9/25) of root repairs were performed concomitantly with an anterior cruciate ligament (ACL) reconstruction; 100% (8/8) lateral meniscal root injuries were associated with a concomitant ACL injury compared with 6% (1/17) of medial root injuries. Overall, 53% (9/17) of medial meniscal root repairs were performed in the setting of high-grade (Outerbridge's grade III/IV) chondral pathology of the ipsilateral femoral condyle. Median follow-up was 16 months. The Kellgren–Lawrence radiographic scale progressed in two knees that underwent meniscal root repair based on comparison of preoperative to follow-up radiographs. MRI showed 88% (22/25) of meniscal roots had completely healed, 6% (1/17) of the medial root repairs showed evidence of extrusion, and 44% (11/25) of repairs were associated with progressive chondromalacia. All patients had normal or near normal IKDC objective scores at time of follow-up. Surgeons should have a high suspicion for concomitant ACL injuries in the setting of lateral meniscal root tears, and be wary of concomitant high-grade chondral damage in the setting of medial meniscal root tears. Most meniscal root repairs appeared completely healed with low rates of medial meniscal extrusion on MRI at short-term follow-up, despite a high rate of chondromalacia progression. Present study is a large case series with prospective follow-up and reflects level of evidence IV.

本研究旨在描述在单一大型学术机构接受半月板根部修复的患者的人口统计学、临床结果和放射学结果。确定了 2011 年 1 月至 2015 年 4 月期间接受半月板根部修复的患者。回顾性记录患者人口统计学、损伤特征、股骨内侧髁软骨软化症和其他伴随病理的术中发现。入组患者返回诊所前瞻性收集国际膝关节文献委员会 (IKDC) 的主观和客观表格、膝关节 X 光片和磁共振成像 (MRI)。最终分析共25例牙根损伤（23例患者）。大多数牙根损伤是内侧半月板（68%），并使用经骨拔出技术修复（80%）。²），并报告了与受伤相关的创伤事件（60%）。此外，36% (9/25) 的牙根修复是与前十字韧带 (ACL) 重建同时进行的；100% (8/8) 的外侧半月板根损伤与伴随的 ACL 损伤相关，而内侧根损伤的比例为 6% (1/17)。总体而言，53% (9/17) 的内侧半月板根部修复是在同侧股骨髁的高级（Outerbridge 的 III/IV 级）软骨病理情况下进行的。中位随访时间为 16 个月。根据术前与后续 X 线照片的比较，Kellgren-Lawrence 放射线照相评分在接受半月板根部修复的两个膝盖中取得了进展。MRI 显示 88% (22/25) 的半月板根部已完全愈合，6% (1/17) 的内侧根部修复显示有挤压迹象，44% (11/25) 的修复与进行性软骨软化有关。所有患者在随访时 IKDC 客观评分均正常或接近正常。外科医生应高度怀疑外侧半月板根部撕裂时是否伴有 ACL 损伤，并警惕内侧半月板根部撕裂时是否伴有高级软骨损伤。尽管软骨软化进展率很高，但在短期随访中，大多数半月板根部修复似乎已完全愈合，MRI 上内侧半月板挤压率较低。本研究是一个具有前瞻性随访的大型病例系列，反映了证据水平 IV。外科医生应高度怀疑外侧半月板根部撕裂时是否伴有 ACL 损伤，并警惕内侧半月板根部撕裂时是否伴有高级软骨损伤。尽管软骨软化进展率很高，但在短期随访中，大多数半月板根部修复似乎已完全愈合，MRI 上内侧半月板挤压率较低。本研究是一个具有前瞻性随访的大型病例系列，反映了证据水平 IV。外科医生应高度怀疑外侧半月板根部撕裂时是否伴有 ACL 损伤，并警惕内侧半月板根部撕裂时是否伴有高级软骨损伤。尽管软骨软化进展率很高，但在短期随访中，大多数半月板根部修复似乎已完全愈合，MRI 上内侧半月板挤压率较低。本研究是一个具有前瞻性随访的大型病例系列，反映了证据水平 IV。