Muscle strength, functional performance, and self-reported outcomes four years after arthroscopic partial meniscectomy in middle-aged patients
Article first published online: 30 NOV 2006
Copyright © 2006 by the American College of Rheumatology
Arthritis Care & Research
Volume 55, Issue 6, pages 946–952, 15 December 2006
How to Cite
Ericsson, Y. B., Roos, E. M. and Dahlberg, L. (2006), Muscle strength, functional performance, and self-reported outcomes four years after arthroscopic partial meniscectomy in middle-aged patients. Arthritis & Rheumatism, 55: 946–952. doi: 10.1002/art.22346
- Issue published online: 30 NOV 2006
- Article first published online: 30 NOV 2006
- Manuscript Accepted: 16 MAR 2006
- Manuscript Received: 29 APR 2005
- Swedish Research Council
- King Gustav V 80-year Birthday Fund
- Swedish National Centre for Research in Sports
- Knut and Alice Wallenberg Foundation
- Zoega Medical Foundation
- Swedish Rheumatism Association
- Lund Medical Faculty
- Malmö University Hospital
- Muscle strength;
- Functional performance;
- Self-reported outcome
To examine thigh muscle strength, functional performance, and self-reported outcome in patients with nontraumatic meniscus tears 4 years after operation, and to study the impact of a strength deficit on self-reported outcome and evaluate the feasibility of 3 performance tests in this patient group.
The study group comprised 45 patients (36% women, mean age 46.7) who had an arthroscopic partial meniscectomy a mean of 4 years (range 1–6 years) previously. Main outcome measures included isokinetic strength of knee extensors and flexors, functional performance (1-leg hop, 1-leg rising, and square-hop tests), and a self-reported questionnaire (Knee Injury and Osteoarthritis Outcome Score).
We found lower knee extensor strength and worse 1-leg rising capacity in the operated leg, but no difference between operated and nonoperated leg for knee flexors (P ≤ 0.004 and P > 0.3, respectively). Patients with a stronger quadriceps of the operated leg compared with the nonoperated leg had less pain and better function and quality of life (r = 0.4–0.6, P ≤ 0.010). We found the 1-leg rising and 1-leg hop tests to be suitable performance tests in middle-aged meniscectomy patients.
Quadriceps strength is reduced in the meniscectomized leg compared with the nonoperated leg 4 years after surgery. This relative quadriceps weakness significantly affects objective and self-reported knee function, pain, and quality of life, indicating the importance of restoring muscle function after meniscectomy in middle-aged patients.