Department of Orthopaedics and Traumatology, Tepecik Training and Research Hospital, 35180, Izmir, Turkey.
Department of Radiology, Tepecik Training and Research Hospital, Izmir, Turkey.
Surg Radiol Anat. 2020 Jun;42(6):673-679. doi: 10.1007/s00276-020-02430-w. Epub 2020 Feb 12.
Posterior tibial inclination of the knee joint should be considered during anterior cruciate ligament reconstruction and total knee replacement surgery. This inclination is called the posterior tibial slope (PTS) angle. The PTS differs among populations and the aim of this study was to determine the mean PTS in a Turkish population.
PTS was measured retrospectively on lateral knee X-rays (n = 1024). The angle between the line connecting the anterior and posterior points of the lateral tibial plateau and the tibial longitudinal axis was taken as the PTS angle. Intra- and inter-observer agreement regarding the measurements on 20 X-rays were checked.
The mean PTS angle for the entire cohort was 8.36 ± 3.3° (range: 2.1-18.7°); it was 8.57 ± 3.4° (range: 2.3-17.4°) in men and 8.16 ± 3.2° (range: 2.1-18.7°) in women. Although no significant correlation was detected between PTS and age, PTS was higher in men than in women.
The increasing number of total knee replacement surgeries has increased the need for studies on implant mismatch. In this study, reference PTS values were determined for a Turkish population. It may be beneficial to use patient-specific implants in some cases.
在进行前交叉韧带重建和全膝关节置换手术时，应考虑膝关节的胫骨后倾。这种倾斜被称为胫骨后倾角（PTS）。PTS 在不同人群中存在差异，本研究旨在确定土耳其人群的平均 PTS。
回顾性测量外侧膝关节 X 射线（n=1024）上的 PTS。取连接外侧胫骨平台前后点与胫骨长轴的线与胫骨长轴之间的角度作为 PTS 角度。检查了 20 张 X 射线测量的观察者内和观察者间一致性。
整个队列的平均 PTS 角度为 8.36±3.3°（范围：2.1-18.7°）；男性为 8.57±3.4°（范围：2.3-17.4°），女性为 8.16±3.2°（范围：2.1-18.7°）。尽管 PTS 与年龄之间未检测到显著相关性，但男性的 PTS 高于女性。
随着全膝关节置换手术数量的增加，对植入物不匹配的研究需求也在增加。在这项研究中，为土耳其人群确定了参考 PTS 值。在某些情况下，使用患者特异性植入物可能是有益的。
