AI Article Synopsis
- The study investigates a new percutaneous technique for reconstructing the medial patello-femoral ligament (MPFL) using a dynamic gracilis transfer method to improve surgical outcomes for patello-femoral dislocation.
- The researchers tested this technique on 20 cadaveric knees and found that the femoral pulley placement effectively mimicked the original MPFL's positioning while maintaining minimal scarring (average scar length of 6.5cm).
- The conclusion supports that the percutaneous approach is not only feasible and reproducible but also anatomically sound for restoring MPFL connections.
Article Abstract
Background: Many techniques have been described for reconstructing the medial patello-femoral ligament (MPFL), using a variety of transplants and fixation methods to treat patello-femoral dislocation. The main challenge with static transfers is to position the femoral fixation point at the site that best restores MPFL anisometry. The objective of this cadaveric study was to propose a version of the initially described dynamic gracilis transfer technique that can be performed percutaneously.
Hypothesis: Our working hypothesis was that using a minimally invasive approach would provide better cosmesis without altering the biomechanical efficacy of the procedure.
Methods: 20 cadaveric knees were used to evaluate the feasibility and reliability of our percutaneous technique. We analysed femoral pulley location and scar length.
Results: After dissection, the position of the femoral pulley allowed superimposition of the transplant along the trajectory of the native MPFL in all 20 knees. Cumulative scar length was 6.5cm (range, 6-7.5cm).
Discussion: Percutaneous dynamic gracilis transfer is easy to perform, reproducible, and capable of creating a pulley that anatomically replicates the femoral insertion point of the native MPFL.
Level Of Evidence: IV; retrospective study.
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| http://dx.doi.org/10.1016/j.otsr.2021.102910 | DOI Listing |
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