2025 ISAKOS Biennial Congress ePoster
A Radiographic Investigation into the Impact of Graft Size and Time From Injury to Surgery on Static Anterior Tibial Translation After Anterior Cruciate Ligament Reconstruction
Tomas Pineda, MD, Santiago CHILE
Nicolas Cance, MD, Lyon, Rhône-Alpes FRANCE
Michael J. Dan, Mbbs, PhD, MSc(res), FRACS(oath), Merewether AUSTRALIA
Guillaume Demey, MD, Lyon, Rhône Alpes FRANCE
David H. Dejour, MD, Lyon FRANCE
Clinique de la Sauvegarde, Lyon, FRANCE
FDA Status Not Applicable
Summary
Graft size and time from injury to surgery do not significantly affect the reduction of static anterior tibial translation or dynamic anterior tibial translation following ACL reconstruction
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Abstract
Background
Increased anterior tibial translation has been associated with increased posterior tibial slope (PTS) and increased graft failure. Tibial Deflection Osteotomy (TDO) is the only treatment that has shown significant reduction in Static Anterior Tibial Translation (SATT), however, the impact of other variables needs to be studied.
Purpose
The aim of this study is to evaluate the impact of graft size and time between injury to surgery (TBIS) on 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 PTS were measured with a previously validated technique by 2 independent reviewers on lateral weight-bearing knee radiographs. Regression analysis was performed to assess the relationship between Postoperative - Preoperative SATT Difference (? SATT), and Postoperative - Preoperative DATT Difference (? DATT) with graft size and time to surgery.
Results
In total, 62 patients were included in this study. The mean preoperative SATT and DATT were 2.41 (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 (range 7.75 to 10) and the mean TBIS was 14.95 months (range 1 to 275). Linear regression analysis showed no correlation between graft size and ? SATT (p=0.060) and ? DATT (p=0.979) and no correlation between TBIS and ? SATT (p=0.817) and ? DATT (p=0.811). There was a significant correlation between preoperative SATT and PTS (p < 0.014), with a Pearson correlation coefficient of 0.302. No correlation was found between preoperative DATT and PTS (p = 0.489).
Conclusion
Our findings suggest that graft size and TBIS do not significantly affect the reduction of SATT or DATT following ACL reconstruction. This supports the notion that increased preoperative SATT and DATT should not be an indication for the use of larger grafts.