Orthopaedics Surgery, Chungnam National University Hospital Department of Orthopaedics Surgery, Chungnam National University School of Medicine, 640 Daesa-dong, Jung-gu, Daejeon, South Korea.
Int Orthop. 2012 Sep;36(9):1849-55. doi: 10.1007/s00264-012-1596-4. Epub 2012 Jul 11.
To compare and analyse the relationship between horizontal tear and root ligament tear of the posterior horn of the medial meniscus (PHMM) and the degree of varus in the axis of lower limb and body weight.
One hundred and nineteen patients underwent surgical treatment as they were diagnosed with medial meniscus tear in our hospital from May 2006 to December 2009. Of these, 19 cases (group 1), underwent partial meniscectomy as they were confirmed to solely have horizontal tear of the PHMM on arthroscopic examination and 27 cases (group 2), underwent subtotal meniscectomy as they were confirmed to solely have root ligament tear of the PHMM on arthroscopic examination, were chosen for retrospective study. Standing radiographs were taken of every case prior to arthroscopic surgery to measure varus angle. Also, we checked body mass index (BMI) of two groups. The difference of varus angle and BMI between two groups were statistically verified using the Levene's test, paired t-test.
Group 1 showed mean value of varus angle of 2.30 ± 0.54, and BMI of 25.32 ± 3.23. Group 2 showed mean value of varus angle of 5.64 ± 0.54, and BMI of 25.67 ± 3.12. The degree of varus of group 2 was statistically significantly higher than group 1 (p = 0.002). Comparison between the BMI of two groups showed no statistical significance (p = 0.053).
Through a comparative study of sole horizontal tear and root ligament tear of the PHMM, the authors have found that sole root ligament tear of the PHMM is more relative to the genu varum than sole horizontal tear of the PHMM. However, body weight was statistically irrelevant to the incidence of the two lesions.
比较和分析内侧半月板后角水平撕裂（PHMM）与下肢和体重的轴内翻程度以及与根部韧带撕裂的关系。
对 2006 年 5 月至 2009 年 12 月在我院接受手术治疗的 119 例内侧半月板撕裂患者进行回顾性研究。其中 19 例（组 1）经关节镜检查证实仅为 PHMM 水平撕裂行部分半月板切除术，27 例（组 2）经关节镜检查证实仅为 PHMM 根部韧带撕裂行次全半月板切除术。所有患者在关节镜手术前均行站立位 X 线片检查，测量内翻角度。同时检查两组患者的体质量指数（BMI）。采用 Levene 检验和配对 t 检验对两组患者的内翻角度和 BMI 差异进行统计学验证。
组 1 的平均内翻角度为 2.30±0.54，BMI 为 25.32±3.23。组 2 的平均内翻角度为 5.64±0.54，BMI 为 25.67±3.12。组 2 的内翻程度明显高于组 1（p=0.002）。两组患者的 BMI 比较无统计学意义（p=0.053）。
通过对单纯 PHMM 水平撕裂与根部韧带撕裂的对比研究，发现单纯 PHMM 根部韧带撕裂与膝内翻的关系更为密切，而与体重无关。
