ArticleOrthopaedic journal of sports medicine2024
Effect of Quadriceps Tendon Autograft Preparation and Fixation on Graft Laxity During Suspensory Anterior Cruciate Ligament Reconstruction: A Biomechanical Analysis.
Article in Orthopaedic journal of sports medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Anterior Cruciate Ligament Reconstruction: Clinical Outcomes and Biomechanical Considerations of Graft Selection-A Narrative Review.Medicina (Kaunas, Lithuania) · 2026Review
- Biomechanical properties of an all-soft tissue quadriceps tendon autograft compared with a quadrupled semitendinosus autograft: a cadaveric study.Knee surgery & related research · 2026Article
- Periosteum-enhanced triple-pass Krackow stitch provides higher ultimate load than conventional Krackow methods in a bovine patellar tendon model: a controlled biomechanical study.BMC musculoskeletal disorders · 2026Article
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Authors and funding
6 authors.
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Abstract
Background: Favorable collagen fibril density and thickness combined with advances in graft preparation and fixation have significantly increased interest in the quadriceps tendon (QT) autograft for anterior cruciate ligament (ACL) reconstruction. While various suspensory techniques have been described, the biomechanical profile of these constructs is largely undefined. Purpose: To compare the biomechanics of suspensory techniques for soft tissue QT autograft fixation in an in vitro model of ACL reconstruction. Study Design: Controlled laboratory study. Methods: Full-thickness QT grafts were harvested using a 9-mm graft blade. Adjustable-loop devices (ALDs) were secured to the graft (n = 6 per group) with a combination implant containing the ALD and suture tape-reinforced whipstitching (tape-reinforced [TR] group), tethered superficially to the graft with a whipstitch (onlay [OL] group), luggage-tagged through and around the graft (luggage tag [LT] group), or staggered behind superficial suturing (staggered [SG] group). Grafts were tested on an electromechanical testing machine following a validated in vitro reconstruction model of intraoperative workflow and postoperative ACL kinematics, cyclic loading, and load to failure. Results: The TR group had significantly less postcyclic tension loss (mean, 24%) compared with the OL (56%; Conclusion: The TR ALD construct demonstrated the most favorable time-zero biomechanical properties of modern soft tissue QT suspensory constructs, with 32% less tension loss and 52% less cyclic elongation versus the closest construct. Failure loading of all constructs was acceptable with respect to the native ACL except for the SG group, which had suboptimal ultimate load. Clinical Relevance: TR ALD implants may protect soft tissue QT autografts before graft-bone healing in ACL reconstruction by minimizing time-zero laxity and fixation failure.
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