Document Detail


Knee function and knee muscle strength in middle-aged patients with degenerative meniscal tears eligible for arthroscopic partial meniscectomy.
MedLine Citation:
PMID:  23242961     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Functional limitations exist postmeniscectomy, but preoperative data are scarce. PURPOSE: To examine knee function, knee muscle strength and performance in middle-aged patients with degenerative meniscal tears, eligible for arthroscopic partial meniscectomy. STUDY DESIGN: Cross-sectional study. METHODS: Eighty-two participants with MRI verified degenerative meniscal tear (35% women, mean age 49 years) answered the Knee injury and Osteoarthritis Outcome Score (KOOS) and were tested for isokinetic knee muscle strength and lower extremity performance (one-leg hop for distance, 6 m timed hop and maximum number of knee-bends in 30 s). Limb Symmetry Index (LSI) was used to express side-to-side differences in per cent using the non-injured leg as the control. An LSI ≥90% was considered normal. RESULTS: Mean scores of the five subscales of the KOOS were from 13 to 36 points lower compared with a population-based reference group and similar to patients prior to anterior cruciate ligament reconstruction. Quadriceps strength and lower-extremity performance were impaired for the injured leg compared with the non-injured leg (p<0.001), with a mean difference of 13% in quadriceps strength and between 8% and 13% in lower-extremity performance. Between 41% and 52% of the participants had abnormal LSI values in quadriceps muscle strength and lower-extremity performance. CONCLUSION: Middle-aged patients with a symptomatic degenerative meniscal tear experience functional knee problems when eligible for meniscectomy. Included participants reported difficulty with knee pain, symptoms, function and quality of life and quadriceps strength and lower-extremity performance were impaired. Approximately 50% of the study group had clinically relevant impairments in quadriceps strength and lower-extremity performance, defined as >10% differences between the injured and the non-injured leg.
Authors:
Silje Stensrud; May Arna Risberg; Ewa M Roos
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-14
Journal Detail:
Title:  British journal of sports medicine     Volume:  -     ISSN:  1473-0480     ISO Abbreviation:  Br J Sports Med     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0432520     Medline TA:  Br J Sports Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
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