Towards planning of osteotomy around the knee with quantitative inclusion of the adduction moment: a biomechanical approach.

ABSTRACT:

Purpose

Despite practised for decades, the planning of osteotomy around the knee, commonly using the Mikulicz-Line, is only empirically based, clinical outcome inconsistent and the target angle still controversial. A better target than the angle of frontal-plane static leg alignment might be the external frontal-plane lever arm (EFL) of the knee adduction moment. Hypothetically assessable from frontal-plane-radiograph skeleton dimensions, it might depend on the leg-alignment angle, the hip-centre-to-hip-centre distance, the femur- and tibia-length.

Methods

The target EFL to achieve a medial compartment force ratio of 50% during level-walking was identified by relating in-vivo-measurement data of knee-internal loads from nine subjects with instrumented prostheses to the same

SUBMITTER: Biehl M 

PROVIDER: S-EPMC8193456 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature