No impact of graft size or time to surgery on anterior tibial translation under weight-bearing following ACL reconstruction

IF 2.7 Q2 ORTHOPEDICS Journal of Experimental Orthopaedics Pub Date : 2025-03-06 DOI:10.1002/jeo2.70130

Tomas Pineda, Nicolas Cance, Michael J. Dan, Guillaume Demey, David H. Dejour

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Abstract

Purpose

The aim of this study is to evaluate the impact of graft size and time between injury to surgery (TBIS) on static anterior tibial translation (SATT) and dynamic anterior tibial translation (DATT) after anterior cruciate ligament (ACL) reconstruction.

Methods

A consecutive series of patients treated with primary ACL reconstruction using hamstring autograft was reviewed. Preoperative SATT, DATT and posterior tibial slope (PTS) were measured with a previously validated technique by two independent reviewers on lateral weight-bearing knee radiographs. Regression analysis was performed to assess the relationship between postoperative—preoperative SATT difference (Δ SATT) and postoperative—preoperative DATT difference (Δ DATT) with graft size and TBIS.

Results

In total, 66 patients were included in this study. The mean preoperative SATT and DATT were 2.41 (standard deviation [SD] 2.98) and 9.09 (SD 3.19), respectively. The mean postoperative SATT and DATT were 2.14 (SD 2.47) and 5.28 (SD 2.55), respectively. The mean graft size was 8.4 mm (SD 8.4; range 7.75–10), and the median TBIS was 3 months (range 1–275). Linear regression analysis showed no correlation between graft size and Δ SATT (p = 0.060) and Δ DATT (p = 0.979) and no correlation between TBIS and Δ SATT (p = 0.817) and Δ DATT (p = 0.811).

Conclusion

Our results suggest that larger graft sizes or shorter times between injury and reconstruction do not impact the reduction of SATT or DATT following ACL reconstruction.

Level of Evidence

Level IV, retrospective cohort study.

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植骨大小和手术时间对ACL重建后负重下胫骨前移位无影响

目的探讨前交叉韧带（ACL）重建后移植物大小和损伤至手术间隔时间（TBIS）对胫骨静态前平移（SATT）和动态前平移（DATT）的影响。方法回顾性分析采用自体腘绳肌腱移植重建原发性前交叉韧带的病例。术前SATT、DATT和胫骨后斜度（PTS）由两名独立的评论者在侧位负重膝x线片上使用先前验证的技术进行测量。通过回归分析评估术后-术前SATT差异（Δ SATT）和术后-术前DATT差异（Δ DATT）与移植物大小和TBIS之间的关系。结果共纳入66例患者。术前平均SATT和DATT分别为2.41（标准差[SD] 2.98）和9.09 （SD 3.19）。术后平均SATT和DATT分别为2.14 （SD 2.47）和5.28 （SD 2.55）。平均接枝大小为8.4 mm (SD 8.4；范围7.75-10)，中位TBIS为3个月（范围1-275）。线性回归分析显示，接枝大小与Δ SATT （p = 0.060）、Δ DATT （p = 0.979）无相关性，TBIS与Δ SATT （p = 0.817）、Δ DATT （p = 0.811）无相关性。结论更大的移植物尺寸或更短的损伤与重建之间的时间不影响前交叉韧带重建后SATT或DATT的降低。证据水平：IV级，回顾性队列研究。

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