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dc.creatorRaoulis V.A., Hantes M.E., Fyllos A., Chiotelli M.D., Kermanidis A.T., Malahias M.-A., Zibis A.en
dc.date.accessioned2023-01-31T09:51:09Z
dc.date.available2023-01-31T09:51:09Z
dc.date.issued2021
dc.identifier10.1016/j.knee.2021.09.007
dc.identifier.issn09680160
dc.identifier.urihttp://hdl.handle.net/11615/78454
dc.description.abstractBackground: The purpose of this study was to evaluate the ultimate failure load and stiffness of two patellar fixation techniques for medial patellofemoral ligament (MPFL) reconstruction: (1) quadriceps tendon fixation (QT), (2) single tunnel (STG) patella fixation with gracilis autograft. Methods: A total of 16 fresh-frozen cadaveric knees (eight matched pairs) were randomized into two groups (QT vs. STG). The MPFL reconstructions were subjected to cyclic loading for 10 cycles to 30 N and then tested to failure at a constant displacement rate of 15 mm/min using a materials-testing machine (MTS 810 Universal Testing System). Failure mode, ultimate failure load and stiffness were recorded for each cadaveric specimen. Results: There was no significant difference in mean ultimate failure load among groups (P = 0.35). The STG group failed at a mean ultimate load of 190.04 N [standard deviation (SD) 23.18] and the QT group failed at 206.24 N (SD 37.99). The STG group had a mean stiffness of 21.38 N/mm (SD 1.44). This was not significantly higher than the mean stiffness value achieved for the QT group at 20.36 N/mm (SD 1.3) (P = 0.19). In the QT group all reconstructions failed due to tendon rupture at the patella attachment. The reason for failure in the STG group was the graft–suture connection. Conclusions: This cadaver study showed no statistically significant difference in biomechanical performance of the evaluated patella fixation techniques, in terms of maximum load to failure and stiffness. Both techniques are reliable in terms of biomechanical properties and could offer additional surgical solutions. © 2021 Elsevier B.V.en
dc.language.isoenen
dc.sourceKneeen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85116432129&doi=10.1016%2fj.knee.2021.09.007&partnerID=40&md5=50913cea8fb3113a584754b42daca8c5
dc.subjectageden
dc.subjectArticleen
dc.subjectautopsyen
dc.subjectbiomechanicsen
dc.subjectclinical articleen
dc.subjectcontrolled studyen
dc.subjectfemaleen
dc.subjectgraft suture connectionen
dc.subjecthumanen
dc.subjecthuman tissueen
dc.subjectintermethod comparisonen
dc.subjectknee ligament surgeryen
dc.subjectmaleen
dc.subjectmaterials testingen
dc.subjectmedial patellofemoral ligament reconstructionen
dc.subjectmusculoskeletal stiffnessen
dc.subjectpatellaen
dc.subjectquadriceps tendon fixationen
dc.subjectsingle tunnel patella fixation with gracilis autograften
dc.subjectsurgical techniqueen
dc.subjecttendon ruptureen
dc.subjecttreatment failureen
dc.subjectultimate failure loaden
dc.subjectautograften
dc.subjectbiomechanicsen
dc.subjectcadaveren
dc.subjectdiagnostic imagingen
dc.subjectjoint ligamenten
dc.subjectpatellaen
dc.subjectpatellofemoral jointen
dc.subjectsurgeryen
dc.subjecttendonen
dc.subjectAutograftsen
dc.subjectBiomechanical Phenomenaen
dc.subjectCadaveren
dc.subjectHumansen
dc.subjectLigaments, Articularen
dc.subjectPatellaen
dc.subjectPatellofemoral Jointen
dc.subjectTendonsen
dc.subjectElsevier B.V.en
dc.titleBiomechanical comparison of two medial patellofemoral ligament reconstruction techniques: Quadriceps tendon fixation versus single-tunnel patella fixation with gracilis autograft did not differ in load to failure and stiffnessen
dc.typejournalArticleen


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