Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, India.
Foot Ankle Surg. 2024 Dec;30(8):681-687. doi: 10.1016/j.fas.2024.05.015. Epub 2024 May 29.
In suspected Ankle Instability, the parameters that can be defined in the X-ray have their limitation owing to their variability in positioning and rotation of the tibiofibular joint. This inaccuracy further increases due to variability in morphometric parameters of distal tibiofibular syndesmosis among different populations based on race and sex. This research aims to study morphometry of normal distal tibiofibular syndesmosis based on computed tomography imaging in the Indian population.
An Prospective observational study was performed from December 2020 to October 2022 on normal ankle CT scans of 100 Indian population using axial, sagittal, and coronal CT images. Anterior and posterior tibiofibular distance, Morphology of the incisura fibularis based on depth, Tibiofibular clear space (TFCS) and tibiofibular overlap (TFO), Transverse and longitudinal length of the fibula, and Relationship between the center of the talus and the center of a line joining the outer aspect of malleoli in the coronal plane were measured and analyzed by two different observers.
Out of the 100 participants, 77 (77 %) were male, and 23 (23 %) were female. The overall mean age of participants was 34.69 ± 9.7 years. The incisura fibularis was concave in 54 %, and shallow in 46 %. Anterior tibiofibular distance, Posterior tibiofibular distance, and Tibiofibular overlap were significantly different in comparison to the male with female populations (p-value < 0.05).
This study gives the indices that describe normal variations in the anatomical relationship between the fibula and fibular incisure in the Indian population, which will be helpful for improving the diagnostic accuracy of distal tibiofibular syndesmoses and providing optimal treatment in order to improve functional outcomes and reduce the risk of complications.
III.
在疑似踝关节不稳定的情况下，由于胫腓骨关节的定位和旋转存在可变性，X 射线中可定义的参数存在其局限性。由于种族和性别不同，不同人群的下胫腓联合的形态学参数存在差异，这种不准确性进一步增加。本研究旨在基于 CT 成像研究印度人群中正常下胫腓联合的形态计量学。
本研究为前瞻性观察研究，纳入了 2020 年 12 月至 2022 年 10 月期间的 100 例印度人群的正常踝关节 CT 扫描，使用轴位、矢状位和冠状位 CT 图像。测量并分析了前胫腓骨距离、腓切迹深度的形态学（基于深度）、胫腓骨间隙（TFCS）和胫腓骨重叠（TFO）、腓骨的横径和长径、以及冠状位中外踝连线的中心与距骨中心的关系。由两名不同的观察者进行测量和分析。
100 名参与者中，77 名（77%）为男性，23 名（23%）为女性。参与者的总体平均年龄为 34.69 ± 9.7 岁。腓切迹为凹陷形的占 54%，浅形的占 46%。与男性相比，女性的前胫腓骨距离、后胫腓骨距离和胫腓骨重叠差异有统计学意义（p 值<0.05）。
本研究给出了描述印度人群中腓骨和腓切迹之间解剖关系正常变化的指标，这将有助于提高下胫腓联合的诊断准确性，并提供最佳治疗，以改善功能结果并降低并发症风险。
III 级。
