We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Knee biomechanics early after knee replacement surgery predict abnormal gait patterns 12 months postoperatively.
- Authors
Levinger, Pazit; Menz, Hylton B.; Morrow, Adam D.; Perrott, Margaret A.; Bartlett, John R.; Feller, Julian A.; Bergman, Neil B.
- Abstract
An abnormal flexor moment pattern is often evident following total knee replacement (TKR) surgery. We investigated whether such a pattern at 12 months post-surgery could be predicted using biomechanical gait measures assessed before surgery and at 4 months post-surgery. Thirty two TKR patients were evaluated and classified as normal (biphasic pattern) or abnormal (flexor moment pattern) at each time point. Biomechanical parameters collected before surgery and at 4 months post-surgery were then explored for their ability to predict gait patterns at 12 months post-surgery. The gait pattern at 4 months was significantly associated with the 12 month post-surgery gait pattern, with over half of those with a flexor moment pattern at 4 months retaining this pattern at 12 months. Discriminant function analysis indicated that peak knee flexion during early stance, peak knee extension, and peak knee extension moment at 4 months post-surgery were independent predictors of the gait pattern at 12 months. Thus, an abnormal knee flexor moment pattern at 12 months post-surgery can be predicted by biomechanical analysis 4 months after surgery. Therefore, interventions aimed at improving active extension may need to be implemented early after surgery to restore a normal gait pattern. © 2011 Orthopaedic Research Society Published by Wiley Periodicals, Inc. J Orthop Res 30:371-376, 2012
- Subjects
TOTAL knee replacement; FLEXOR tendons; BIOMECHANICS; SURGERY; DISCRIMINANT analysis; WOUNDS &; injuries
- Publication
Journal of Orthopaedic Research, 2012, Vol 30, Issue 3, p371
- ISSN
0736-0266
- Publication type
Article
- DOI
10.1002/jor.21545