Effect of plate design on maintenance of anterior and posterior gaps and posterior tibial slope after cyclic loading in medial open‐wedge high tibial osteotomy: A biomechanical study using porcine's tibia

Autor: Yoshiya Nibe, Tsuneari Takahashi, Tomohiro Matsumura, Tatsuya Kubo, Katsushi Takeshita
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Experimental Orthopaedics, Vol 11, Iss 3, Pp n/a-n/a (2024)
Druh dokumentu: article
ISSN: 2197-1153
DOI: 10.1002/jeo2.12036
Popis: Abstract Purpose We aimed to investigate whether a plate adapted to the anatomy of the proximal medial porcine's tibia would provide maintenance of the anterior gap (AG), posterior gap (PG) and posterior tibial slope (PTS). Methods Twenty‐seven porcine tibias were biomechanically evaluated by performing MOWHTO and placing TOMOFIX (n = 9), AC plate (n = 9) and TriS (n = 9) anteromedially. Cyclic testing (800 N, 2000 cycles, 0.5 Hz) was performed to investigate the PTS over time for MOWHTO. The particular displacement calculated from the maximum to the minimum point with the load‐displacement curve along the mechanical axis during cyclic testing, the final AG and PG changes at the osteotomy site, the increased PTS calculated by subtracting AG from PG after 2000 cycles were compared among the three groups. The displacement was evaluated by repeated‐measures analysis of variance (ANOVA), and changes in AG and PG and increased PTS were evaluated by one‐way ANOVA. The sample size for α and β errors were
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