Publikation: Potential strategies to reduce medial compartment loading in patients with knee osteoarthritis of varying severity : Reduced walking speed
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OBJECTIVE:
To determine whether reducing walking speed is a strategy used by patients with knee osteoarthritis (OA) of varying disease severity to reduce the maximum knee adduction moment.
METHODS:
Self-selected walking speeds and maximum knee adduction moments of 44 patients with medial tibiofemoral OA of varying disease severity, as assessed by using the Kellgren/Lawrence grade, were compared with those of 44 asymptomatic control subjects matched for sex, age, height, and weight.
RESULTS:
Differences in self-selected normal walking speed explained only 8.9% of the variation in maximum knee adduction moment for the group of patients with knee OA. The severity of the disease influenced the adduction moment-walking speed relationship; the individual slopes of this relationship were significantly greater in patients with less severe OA than in asymptomatic matched control subjects. Self-selected walking speed did not differ between patients with knee OA, regardless of the severity, and asymptomatic control subjects. However, knees with more-severe OA had significantly greater adduction moments (mean +/- SD 3.80 +/- 0.89% body weight x height) and were in more varus alignment (6.0 +/- 4.5 degrees ) than knees with less-severe OA (2.94 +/- 0.70% body weight x height; and 0.0 +/- 2.9 degrees, respectively).
CONCLUSION:
Patients with less-severe OA adapt a walking style that differs from that of patients with more-severe OA and controls. This walking style is associated with the potential to reduce the adduction moment when walking at slower speeds and could be linked to decreased disease severity.
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MÜNDERMANN, Annegret, Chris O. DYRBY, Debra E. HURWITZ, Leena SHARMA, Thomas P. ANDRIACCHI, 2004. Potential strategies to reduce medial compartment loading in patients with knee osteoarthritis of varying severity : Reduced walking speed. In: Arthritis & Rheumatism. 2004, 50(4), pp. 1172-1178. ISSN 0004-3591. Available under: doi: 10.1002/art.20132BibTex
@article{Mundermann2004-04Poten-17896, year={2004}, doi={10.1002/art.20132}, title={Potential strategies to reduce medial compartment loading in patients with knee osteoarthritis of varying severity : Reduced walking speed}, number={4}, volume={50}, issn={0004-3591}, journal={Arthritis & Rheumatism}, pages={1172--1178}, author={Mündermann, Annegret and Dyrby, Chris O. and Hurwitz, Debra E. and Sharma, Leena and Andriacchi, Thomas P.} }
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