ArticleOrthopaedic journal of sports medicine2025
The Anterior Cartilage Edge of the Lateral Femoral Condyle Medial Wall is a Useful Landmark to Avoid Tunnel Convergence in Anterior Cruciate Ligament Reconstruction With Lateral Extra-Articular Tenodesis.
Article in Orthopaedic journal of sports medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: There is a risk of convergence between the anterior cruciate ligament reconstruction (ACLR) femoral tunnel and the lateral extra-articular tenodesis (LET) tunnel, which may cause damage to the graft and fixation device. Purpose: To develop a simple and safe method for drilling the LET tunnel to avoid convergence between the ACL femoral tunnel and the LET tunnel. Study Design: Descriptive laboratory study. Methods: Three-dimensional computed tomography reconstructed images of 60 knees after ACLR and 10 knees after ACLR and LET between August 2023 and July 2024 were analyzed. The possibility and utility of using the anterior cartilage edge (ACE) of the lateral femoral condyle medial wall as an intra-articular landmark of the LET tunnel exit were analyzed in 60 knees grouped by ACL tunnel diameter: the 7-mm group (n = 20); the 8-mm group (n = 20); and the 9-mm group (n = 20). The safe zone is defined as the area of the LET bone tunnel exit at the medial wall of the lateral condyle of the femur where the 2 bone tunnels do not intersect. In addition, the bone bridge thickness was measured in 10 knees after ACLR and LET. Results: The x-coordinate of the highest point in the cartilage edge was significantly smaller than that of the intersection point between the safe line and the cartilage edge in each group (7-mm group: 57.27 ± 7.32 vs 88.27 ± 6.17; Conclusion/Clinical Relevance: To avoid tunnel convergence in ACLR combined with LET, the ACE of the lateral femoral condyle medial wall is a useful landmark to drill the LET bone tunnel.
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