Document Detail

Quadriceps femoris function during knee extension following total knee arthroplasty.
MedLine Citation:
PMID:  9731405     Owner:  NLM     Status:  MEDLINE    
Electromyographic signals (EMG) from surface electrodes over the vastus medialis, rectus femoris and vastus lateralis were monitored during isometric knee extension for 10 TKA patients and 6 control subjects. No significant side-to-side differences in normalized EMG signals from any of the monitored muscles were found when the left and right legs of the control group were compared or when the operative and the non-operative legs of the patient group were compared. However, both the operative and the non-operative legs in the patient group differed significantly (p < 0.01) in normalized EMG from the control group. This study has shown that a muscle imbalance, possibly leading to patellar tracking problems, does not routinely exist following TKA through a medial parapatellar incision.
A S Hines; M J Askew; M W Kovacik; D A Noe; I A Gradisar
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biomedical sciences instrumentation     Volume:  33     ISSN:  0067-8856     ISO Abbreviation:  Biomed Sci Instrum     Publication Date:  1997  
Date Detail:
Created Date:  1998-09-24     Completed Date:  1998-09-24     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0140524     Medline TA:  Biomed Sci Instrum     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  471-6     Citation Subset:  IM    
Walter A. Hoyt, Jr. Musculoskeletal Research Laboratory, Department of Orthopaedic Surgery, Summa Health System, Akron, Ohio, USA.
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MeSH Terms
Arthroplasty, Replacement, Knee*
Knee Joint / physiology*
Middle Aged
Movement / physiology*
Muscle, Skeletal / physiology*

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