Comparison of knee joint orientation in clinically versus biomechanically aligned computed tomography coordinate system.

ABSTRACT:

Background

Preoperative planning of total knee arthroplasty is usually performed using knee-centred computed tomography (CT) data sets. The disadvantage of these data sets is having no account of the biomechanical axis of the lower extremity, known as Mikulicz line. It aligns the femoral head to the middle of the talocrural joint. For optimal prosthesis arrangement, the knee CT data set must therefore be brought in congruency with this line of loading to achieve the best results and eliminate rotational malalignments.This study aims to establish a relation between the knee-centred clinical coordinate system (CCS) and a biomechanical coordinate system (BCS) based on the Mikulicz line.

Methods

CT data sets of 45 lower extremities were evaluated. Using VG Studio Max, a visualis

SUBMITTER: Scherer TP 

PROVIDER: S-EPMC6350020 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature