Proximal femoral fixation method and axial load affect simulated muscle forces in an ex vivo feline limb press.

ABSTRACT:

Objective

To quantify how increasing axial loads combined with different femoral fixation methods impact simulated quadriceps and gastrocnemius muscle forces.

Study design

Experimental, non-randomized, ex vivo study.

Methods

A custom limb press permitting axial loads of 10%-40% bodyweight with three femoral fixation models was tested with 24 limbs from 12 cats (4 per method). Fixation models were: one-complete hip mobility, two-rigid femoral fixation, three-flexion-extension hip mobility. Femoral angulation to horizontal of 60° ±5° and stifle/hock angulations of 120° ±5° were maintained using turnbuckles. Primary outcomes were bodyweight normalized quadriceps and gastrocnemius forces, and their ratio. Secondary outcomes were radiographic limb angulation and relative f

SUBMITTER: Mazdarani P 

PROVIDER: S-EPMC12282046 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature