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Comparison of kinematic analysis by mapping tibiofemoral contact with movement of the femoral condylar centres in healthy and anterior cruciate ligament injured knees

Date

2004

Authors

Scarvell, Jennifer M
Smith, Paul
Refshauge, Kathryn M
Galloway, Howard R
Woods, Kevin

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

Two methods of analysis of knee kinematics from magnetic resonance images (MRI) in vivo have been developed independently: mapping the tibiofemoral contact, and tracking the femoral condylar centre. These two methods are compared for the assessment of kinematics in the healthy and the anterior cruciate ligament injured knee. Sagittal images of both knees of 20 subjects with unilateral anterior cruciate ligament injury were analysed. The subjects had performed a supine leg press against a 150 N load. Images were generated at 15° intervals from 0° to 90° knee flexion. The tibiofemoral contact, and the centre of the femoral condyle (defined by the flexion facet centre (FFC)), were measured from the posterior tibial cortex. The pattern of contact in the healthy knee showed the femoral roll back from 0° to 30°, then from 30° to 90° the medial condyle rolled back little, while the lateral condyle continued to roll back on the tibial plateau. The contact pattern was more posterior in the injured knee (p=0.012), particularly in the lateral compartment. The medial FFC moved back very little during knee flexion, while the lateral FFC moved back throughout the flexion arc. The FFC was not significantly different in the injured knee (p=0.17). The contact and movement of the FFC both demonstrated kinematic events at the knee, such as longitudinal rotation. Both methods are relevant to design of total knee arthroplasty: movement of the FFC for consideration of axis alignment, and contact pattern for issues of interface wear and arthritic change in ligament injury.

Description

Keywords

Keywords: analytic method; anterior cruciate ligament rupture; article; clinical article; comparative study; controlled study; cortical bone; exercise; female; femur condyle; human; image analysis; in vivo study; joint function; joint mobility; kinematics; knee fun

Citation

Source

Journal of Orthopaedic Research

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.orthres.2003.12.016

Restricted until

2037-12-31