A supplemental screw enhances the biomechanical stability in medial open-wedge high tibial osteotomy.

ABSTRACT:

Background

The supplemental screw technique was introduced for salvage of lateral hinge fracture in medial open-wedge high tibial osteotomy (owHTO). The efficacy of its use in protection of lateral hinge fracture and corresponding biomechanical behaviors remained unclear. The current study was aimed to clarify if a supplemental screw can provide better protection to lateral hinge in biomechanical perspective.

Materials

An in vitro biomechanical test was conducted. Tibial sawbones, commercial owHTO plates and a cannulated screw were utilized for preparing the intact, owHTO, and owHTO with cannulated screw insertion specimens. A "staircase" dynamic load protocol was adopted for axial compressive test with increasing load levels to determine structural strength and durability b

SUBMITTER: Yang JC 

PROVIDER: S-EPMC7773260 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature