Biomechanical and geometric characterization of peroneus longus allografts with respect to age

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dc.contributor.authorWong, Andrew
dc.contributor.authorSchaffler, Benjamin
dc.contributor.authorNixon, Ryan
dc.contributor.authorCarrero, Leanza
dc.contributor.authorNeufeld, Eric
dc.contributor.authorGrande, Daniel
dc.contributor.authorCalvo R., Rafael
dc.contributor.authorCalvo M., Rafael
dc.date.accessioned2022-07-12T16:09:47Z
dc.date.available2022-07-12T16:09:47Z
dc.date.issued2019
dc.description.abstractBackground: Anterior cruciate ligament injuries are among the most common injuries in high impact sports, and reconstruction is the standard surgical procedure for these ruptures. Reconstructions are often performed using allografts rather than autografts on a case-by-case basis. Controversy exists as to whether or not age of donor tissue plays a factor in the mechanical properties of allografts. Methods: 38 peroneus longus (PL) tendons were prepared using the two-strand graft technique and then subjected to a cyclic loading test regimen of 1000 cycles to determine material properties. Specimens were grouped based on age to ascertain whether donor age affects the material properties of PL tendons. Findings: Secant modulus of the first cycle was determined to be 150.43 (SD 40.24) MPa. The average magnitude of the dynamic modulus was determined to be 82.81 (SD 24.65) MPa. Specimens were grouped into three distinct groups for analysis (x < 40 yo, 40 yo ≤ x < 60 yo, 60 yo < x). Interpretation: The need for using intrinsic material properties is highlighted. There is no significant difference in any intrinsic material property with respect to age or the fatigue of the tendon as the cycle count increases. Conversely, the measured stiffness of a tendon decreased as function of age with a large effect size. Based on analysis of graft geometries, it was determined that PL tendons become significantly more slender with increased age which result in the observed decrease in stiffness.es
dc.description.versionVersión publicadaes
dc.identifier.citationWong AK, Calvo M R, Schaffler BC, Nixon RA, Carrero LC, Neufeld EV, Grande DA, Calvo R R. Biomechanical and geometric characterization of peroneus longus allografts with respect to age. Clin Biomech (Bristol, Avon). 2019 Jul;67:90-95. doi:10.1016/j.clinbiomech.2019.04.017es
dc.identifier.urihttps://doi.org/doi:10.1016/j.clinbiomech.2019.04.017es
dc.identifier.urihttp://hdl.handle.net/11447/6353
dc.language.isoenes
dc.subjectACL reconstructiones
dc.subjectBiomechanicses
dc.subjectPeroneus longus tendones
dc.titleBiomechanical and geometric characterization of peroneus longus allografts with respect to agees
dc.typeArticlees
dcterms.sourceClinical Biomechanicses

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