Background:While increased posterior tibial slope (PTS) is an established risk factor for anterior cruciate ligament tears, the association between tibial slope and meniscal posterior root tears is not well-defined.Purpose:To summarize the available literature evaluating the association between PTS and meniscus root injuries compared with patients without root tears.Study Design:Systematic review; Level of evidence, 4.Methods:A literature search was performed using the Scopus, PubMed, and Embase databases. Human clinical studies evaluating the associations between the medial tibial slope (MTS), lateral tibial slope (LTS), lateral-to-medial (L-to-M) slope asymmetry, and the risk of meniscus root tears were included. Patients with medial meniscus posterior root tears (MMPRTs) and lateral meniscus posterior root tears (LMPRTs) were compared with a control group without root injury. Study quality was assessed using the methodological index for non-randomized studies criteria.Results:Ten studies with 1313 patients were included (884 patients with root tears; 429 controls). The LMPRT subgroup (n = 284) had a significantly greater LTS (mean ± SD, 7.3°± 1.5° vs 5.7°± 3.91°; P < .001), MTS (5.26°± 1.2° vs 4.8°± 1.25°; P < .001), and increased L-to-M asymmetry (2.3°± 1.3° vs 0.65°± 0.5°; P < .001) compared with controls. The MMPRT group (n = 600) had significantly increased MTS relative to controls (8.1°± 2.5° vs 4.3°± 0.7°; P < .001). Furthermore, there was a higher incidence of noncontact injuries (79.3%) and concomitant ramp lesions (56%) reported in patients with LMPRT.Conclusion:Increased MTS, LTS, and L-to-M slope asymmetry are associated with an increased risk of LMPRTs, while increased MTS is associated with MMPRTs. Surgeons should consider how proximal tibial anatomy increases the risk of meniscus root injury.

中文翻译：

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胫骨后坡度增加与半月板根部撕裂风险增加相关：系统评价

背景：虽然胫骨后坡度（PTS）增加是前交叉韧带撕裂的一个确定的危险因素，但胫骨坡度与半月板后根撕裂之间的关系尚不明确。目的：总结评估 PTS 与半月板后根撕裂之间关系的现有文献。半月板根部损伤与无根部撕裂的患者进行比较。研究设计：系统评价；证据水平，4.方法：使用 Scopus、PubMed 和 Embase 数据库进行文献检索。人体临床研究评估了胫骨内侧坡度 (MTS)、胫骨外侧坡度 (LTS)、外侧到内侧 (L-to-M) 坡度不对称性与半月板根部撕裂风险之间的关联。将内侧半月板后根撕裂（MMPRT）和外侧半月板后根撕裂（LMPRT）的患者与未发生根部损伤的对照组进行比较。研究质量使用非随机研究标准的方法学指数进行评估。结果：纳入 10 项研究，涉及 1313 名患者（884 名牙根撕裂患者；429 名对照）。LMPRT 亚组 (n = 284) 的 LTS 显着更高（平均值 ± SD，7.3°± 1.5° vs 5.7°± 3.91°；P < .001），MTS（5.26°± 1.2° vs 4.8°± 1.25°；P < .001）。与对照组相比，L-to-M 不对称性增加（2.3°± 1.3° vs 0.65°± 0.5°；P < .001）。相对于对照组，MMPRT 组 (n = 600) 的 MTS 显着增加（8.1°± 2.5° vs 4.3°± 0.7°；P < .001）。此外，LMPRT 患者中报告的非接触性损伤 (79.3%) 和伴随坡道损伤 (56%) 的发生率较高。 结论：MTS、LTS 和 L-to-M 坡度不对称性增加与发生 LMPRT 的风险增加相关。 LMPRT，而增加的 MTS 与 MMPRT 相关。外科医生应考虑胫骨近端解剖结构如何增加半月板根部损伤的风险。