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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >The difference between the medial and lateral posterior tibial slope is associated with greater internal tibial rotation
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The difference between the medial and lateral posterior tibial slope is associated with greater internal tibial rotation

机译：胫骨后内侧和外侧之间的差异与胫骨内部旋转更大有关

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Aims and Objectives: The objective of this study was to investigate the effect of lateral and medial posterior tibial slope (PTS) and meniscal slope (PMS) on in-vivo anterior tibial translation (ATT) and internal tibial rotation (IR) during downhill running on the healthy contralateral knee twenty-four months after ACL reconstruction. Materials and Methods: Forty-two individuals (twenty-six males; mean age 21.2 ± 6.9 years) who underwent unilateral ACL reconstruction were included in this study. Morphologic parameters were measured on 3 T magnetic resonance images (MRI) using the 3D DESS sequence on the ACL reconstructed and healthy contralateral knee. Lateral and medial PTS and PMS were measured according to the method described by Hudek et al. Briefly, the tibial shaft axis was determined by connecting the centroids of two circles fitting the tibial shaft on the central sagittal MRI slice. The PTS and PMS were determined by the angle between the tibial shaft axis and the line connecting the two most proximal anterior and posterior subchondral bone and meniscal points in the center of each joint compartment. Three-dimensional in-vivo kinematics data were acquired using dynamic stereo x-ray during downhill running (3.0 m/s, 10° slope) at 150 Hz twenty-four months after unilateral ACL reconstruction. A multiple regression analysis was performed (p < .05). Results: The lateral and medial PTS and PMS as well as the differences between the medial and lateral compartment slopes were not significantly related to ATT in the healthy contralateral knees twenty-four months after ACL reconstruction (p > .05). The lateral and medial PTS and PMS were not significantly related to peak internal tibial rotation (p > .05). However, the difference between the medial and lateral PTS as well as PMS was associated with greater internal tibial rotation (PTS: b=1.55, p < .001; PMS: b = .71, p = .02). Conclusion: The most important finding of the present study is that the difference between the medial and lateral posterior tibial and meniscal slope are related to in-vivo internal tibial rotation during downhill running. ATT was not significantly influenced by the tibial bony and meniscal morphology. Taking into account the results of the present study, the difference between the medial and the lateral PTS and PMS may contribute to IR when an ACL injury occurs. However, the analyzed movement was a straight-ahead run without any cutting or pivoting maneuvers commonly related to ACL tears. In such motion patterns, the correlations may be even stronger compared to the results of this study.
机译：目的和目的：本研究的目的是研究下坡跑步过程中胫骨外侧和内侧后倾斜（PTS）和半月板倾斜（PMS）对体内胫骨前平移（ATT）和胫骨内旋转（IR）的影响ACL重建后二十四个月对健康的对侧膝盖进行检查。材料和方法：接受单侧ACL重建的42例患者（男性26例;平均年龄21.2±6.9​​岁）。使用3D DESS序列在ACL重建且健康的对侧膝盖上在3T磁共振图像（MRI）上测量形态学参数。外侧和内侧的PTS和PMS根据Hudek等人所述的方法测量。简而言之，胫骨干轴的轴线是通过将两个胫骨干的圆的质心连接到中央矢状MRI切片上来确定的。 PTS和PMS由胫骨干轴轴线与连接两个最接近的前，后软骨下骨的线和每个关节腔中心的半月板点之间的角度确定。在单侧ACL重建24个月后，在150 Hz下坡运行（3.0 m / s，10°斜率）期间，使用动态立体X射线获取三维体内运动学数据。进行了多元回归分析（p <.05）。结果：ACL重建后24个月，健康的对侧膝盖的外侧和内侧PTS和PMS以及内侧和外侧车厢斜率之间的差异与ATT无关（P> .05）。外侧和内侧PTS和PMS与胫骨内部旋转峰值没有显着相关性（p> .05）。但是，内侧和外侧PTS以及PMS之间的差异与胫骨内部旋转更大有关（PTS：b = 1.55，p <.001; PMS：b = .71，p = .02）。结论：本研究最重要的发现是下坡跑步时胫骨内侧和外侧后外侧和半月板坡度之间的差异与胫骨内部旋转有关。 ATT不受胫骨和半月板形态的显着影响。考虑到本研究的结果，发生ACL损伤时，内侧和外侧PTS和PMS之间的差异可能会导致IR。但是，所分析的运动是直接进行的，没有任何通常与ACL撕裂相关的切割或枢转操作。在这种运动模式下，与本研究结果相比，相关性甚至更强。

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