Scandinavian journal of medicine & science in sports
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Scand J Med Sci Sports · Feb 2010
Validity and comprehensibility of the International Knee Documentation Committee Subjective Knee Evaluation form in Children.
The International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form is a knee-specific measure developed for adults. Its usefulness in children is not established. This study describes how children interpret IKDC items, identifies sources of response errors, and provides suggestions for modification. ⋯ The two most difficult items were assessment of current and prior function. Children found the IKDC Subjective Knee Evaluation Form difficult to comprehend and to answer. Modifications to directions, item formatting, and definitions are needed to ensure comprehensibility and validity.
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Scand J Med Sci Sports · Feb 2010
Morphological changes in hind limb muscles elicited by adjuvant-induced arthritis of the rat knee.
We investigated qualitative and quantitative changes in rat hind limb muscles caused by complete Freund's adjuvant (CFA)-induced knee joint pain. One week after CFA injection, muscle atrophy was induced only on the CFA-injected side. Wet weight of the rectus femoris (RF) and soleus (SOL) muscles were significantly decreased by 20% and 19%, respectively. ⋯ Interestingly, sarcomere hypercontraction, indicating overexercise, was observed to a limited extent in the SOL muscles on the control side. In conclusions, knee joint pain can trigger the rapid development of muscle atrophy with degenerative changes not only in thigh but also calf muscles. This indicates that early interventions to inhibit joint pain or inflammation may prevent muscle atrophy.