Document Type : RESEARCH PAPER
Authors
1
Department of Orthopedic, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
2
versity of Medical Sciences, Tehran, Iran 2 Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
3
University of California, Davis School of Medicine, Sacramento, CA, USA
4
Orthopedic & Rehabilitation Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
5
Trauma Research Center, Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
6
Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
10.22038/abjs.2025.84170.3826
Abstract
Objectives: Residual instability following anterior cruciate ligament reconstruction (ACLR) is a common
concern among young, active patients. Currently, two primary methods are used to address this matter:
anterolateral ligament reconstruction (ALLR) using a graft and lateral extra-articular tenodesis (LET).
This study aims to compare the Lemaire method for LET with ALLR in minimizing rotational instability
after ACLR.
Methods: This retrospective cohort study included patients with ACL ruptures who underwent simultaneous
arthroscopic ACLR and either Lemaire lateral tenodesis or ALL reconstruction between April 2013 and March 2021.
Patients were re-examined approximately 24 months post-operatively. We evaluated rotational instability using the
pivot shift test, and anterior stability with the KT-1000 test. Outcomes were measured using the Lysholm and
International Knee Documentation Committee (IKDC) questionnaires.
Results: This study evaluated 53 patients who underwent ACLR using either the Lemaire method for LET (n=24)
or ALLR technique (n=29). No substantial differences were observed in terms of age, sex, body mass index (BMI),
number of physiotherapy sessions, time from injury to surgery, or the diameter of the ACL graft. Rotational stability
was significantly better in the Lemaire group (16.7% vs. 82.8%, P < 0.001). Although functional outcomes were
higher in the Lemaire group, these differences were not statistically significant. Multivariate logistic regression
analysis revealed that the surgical technique was the only significant predictor of rotational instability, with patients
undergoing ALLR being 18.8 times more likely to experience a positive pivot shift (OR: 18.78, 95% CI: 4.34–81.18,
P < 0.001).
Conclusion: This retrospective cohort study suggests that Lemaire LET may be more effective than ALLR in
minimizing rotational instability following arthroscopic ACLR. However, there was no superiority in functional scores
between the groups.
Level of evidence: III
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