前交叉韧带损伤患者胫骨平台后倾角不同测量方法比较

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Abstract Objective To compare the difference of the posterior tibial slope (PTS) in patients with anterior cruciate ligament (ACL) injury measured by different methods.Methods A retrospective analysis was carried out on 91 patients who underwent ACL reconstruction in the Department of Orthopaedics of Xiangya Hospital in Central South University from January 2019 to December 2020.The research included 72 males and 19 females，with an average age of (29.23±7.36) years.Two researchers independently measured the PTS using the proximal anatomic axis，the posterior tibial cortex axis and the anterior tibial cortex axis on the lateral Xray of the knee joint after the operation，and compared the stability of the results of different measurement methods.Results The mean PTS measured by the proximal anatomic axis was (10.63±3.60) °，the mean PTS measured by the posterior cortex axis was (9.05±3.74) °，and the mean PTS measured by the anterior cortex axis was (13.28±3.57) °.The paired sample t test compared the results of three measurement methods，and there was a statistical difference between them (P＜0.01).The independent sample ttest was used to compare the PTS between male and female patients，and the results showed that there was no statistical difference in the PTS measured by the proximal anatomic axis and the anterior tibial cortex axis method(P＞0.05)，while there was a statistical difference in the PTS measured by the posterior tibial cortex axis method (P＜0.05).The intraclass correlation coefficient (ICC) of the posterior tibial cortex axis for measuring the PTS was 0.953 within-group and 0.882 between-group，which were both the highest among the three different methods.Conclusion The posterior cortex axis method has the highest stability in measuring the posterior tibial slope and is recommended for clinical use.

Key words： knee joint posterior tibial slope anterior cruciate ligament measuring method

Corresponding Authors: Tian Yangjing

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Xu Bei,Tian Yangjing. Comparison of Different Measurement Methods of Posterior Tibial Slope Inclination in Patients with Anterior Cruciate Ligament Injury[J]. sygkzz, 2023, 29(8): 694-.

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http://www.sygkzz.com/EN/ OR http://www.sygkzz.com/EN/Y2023/V29/I8/694

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