The Association of Tibia:Femur Ratio and Anterior Cruciate Ligament Injury.

IF 2.4 3区 医学 Q2 ORTHOPEDICS
Orthopaedic Journal of Sports Medicine Pub Date : 2025-06-19 eCollection Date: 2025-06-01 DOI:10.1177/23259671251343811
Jonathan McKeeman, Ryan DeLeon, Daniel Heckman
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引用次数: 0

Abstract

Background: The tibia:femur ratio (TFR) is an anatomic proportion describing the length of the tibia relative to the femur, with an established normative mean of 0.78 in skeletally mature individuals. Variation in TFR affects lower extremity biomechanics, and there is an association between elevated TFR and hip/knee osteoarthritis and patellar instability.

Hypothesis: TFR variation may also be associated with anterior cruciate ligament (ACL) injury; thus, the purpose of this study is to determine if the mean TFR in patients with ACL injury is different from the mean normative TFR in the general population.

Study design: Cross-sectional study; Level of evidence, 3.

Methods: A total of 50 patients with magnetic resonance imaging-confirmed ACL injury underwent full-length lower extremity scanograms. Femoral length was measured from the most superior point of the femoral head to the center point of the medial femoral condyle. Tibial length was measured from the center point of the medial tibial plateau to the center point of the tibial plafond. The TFR was calculated by dividing the tibial length by the femoral length. The mean TFR of the study group was compared with the previously published mean TFR for normative controls with a 2-tailed t test.

Results: The mean TFR for the entire cohort of patients with ACL injury was 0.759 (SD, 0.029), which was significantly lower than the mean normative TFR of 0.781 (P = .0001). There were 29 (58.0%) male and 21 (42.0%) female patients. The mean TFR was similar for male (0.760) and female (0.757) patients (P = .77).

Conclusion: Patients with ACL injury demonstrated a significantly lower TFR than the previously published TFR for normative controls, which suggests that an association between TFR and ACL injury may exist. It is possible that decreasing tibial length relative to femoral length alters lower extremity biomechanics in such a manner that places the ACL at risk for injury.

胫骨:股骨比例与前交叉韧带损伤的关系。
背景:胫骨:股骨比(TFR)是描述胫骨相对于股骨长度的解剖比例,在骨骼成熟的个体中,标准平均值为0.78。TFR的变化影响下肢生物力学,TFR升高与髋关节/膝关节骨关节炎和髌骨不稳定之间存在关联。假设:TFR变异也可能与前交叉韧带(ACL)损伤有关;因此,本研究的目的是确定前交叉韧带损伤患者的平均TFR是否与一般人群的平均规范TFR不同。研究设计:横断面研究;证据水平,3。方法:对50例经磁共振成像证实的前交叉韧带损伤患者进行下肢全长扫描。股骨长度从股骨头最上端至股骨内侧髁中心点测量。从胫骨平台内侧中心点到胫骨平台中心点测量胫骨长度。TFR通过胫骨长度除以股骨长度来计算。用双尾t检验将研究组的平均TFR与之前公布的标准对照的平均TFR进行比较。结果:全队列ACL损伤患者TFR均值为0.759 (SD, 0.029),显著低于规范TFR均值0.781 (P = 0.0001)。男性29例(58.0%),女性21例(42.0%)。男性(0.760)和女性(0.757)患者的平均TFR相似(P = 0.77)。结论:前交叉韧带损伤患者的TFR明显低于之前公布的标准对照TFR,这表明TFR与前交叉韧带损伤之间可能存在关联。胫骨长度相对于股骨长度的减少可能会改变下肢的生物力学,从而使前交叉韧带处于损伤的危险中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Orthopaedic Journal of Sports Medicine
Orthopaedic Journal of Sports Medicine Medicine-Orthopedics and Sports Medicine
CiteScore
4.30
自引率
7.70%
发文量
876
审稿时长
12 weeks
期刊介绍: The Orthopaedic Journal of Sports Medicine (OJSM), developed by the American Orthopaedic Society for Sports Medicine (AOSSM), is a global, peer-reviewed, open access journal that combines the interests of researchers and clinical practitioners across orthopaedic sports medicine, arthroscopy, and knee arthroplasty. Topics include original research in the areas of: -Orthopaedic Sports Medicine, including surgical and nonsurgical treatment of orthopaedic sports injuries -Arthroscopic Surgery (Shoulder/Elbow/Wrist/Hip/Knee/Ankle/Foot) -Relevant translational research -Sports traumatology/epidemiology -Knee and shoulder arthroplasty The OJSM also publishes relevant systematic reviews and meta-analyses. This journal is a member of the Committee on Publication Ethics (COPE).
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