• Thomas Linding Jakobsen, Henrik Kehlet, Henrik Husted, Janne Petersen, and Thomas Bandholm.
• Lundbeck Foundation Centre for Fast-Track Hip and Knee Arthroplasty, Copenhagen University Hospital, Hvidovre, Copenhagen, Denmark.
• Arthritis Care Res (Hoboken). 2014 Dec 1; 66 (12): 1856-66.

ObjectiveTo compare 7 weeks of supervised physical rehabilitation with or without progressive strength training (PST) commenced early after fast-track total knee arthroplasty (TKA) on functional performance.MethodsIn total, 82 patients with a unilateral primary TKA were randomized to 2 different interventions: 7 weeks of supervised physical rehabilitation with PST (PST group) and without PST (CON group) commenced early after fast-track TKA. The primary outcome was the maximal distance walked in 6 minutes (6-minute walk test). Secondary outcomes were lower extremity strength and power, knee joint effusion and range of motion, knee pain, and self-reported disability and quality of life. All outcome measures were assessed before TKA (baseline) and 4, 8, and 26 weeks after TKA.ResultsThere was no statistically significant difference between the PST and CON groups in the change score from baseline to the 8-week postoperative assessment (primary end point) for the 6-minute walk test with unadjusted baseline scores (mean difference between groups: -11.3 meters [95% confidence interval -45.4, 22.7]; analysis of variance P = 0.51). There were no statistically significant or clinically meaningful differences between groups in change scores from baseline to any other time point for all secondary outcomes. The secondary outcome knee extension strength did not reach the level recorded before surgery in both groups.ConclusionSeven weeks of supervised physical rehabilitation with PST was not superior to 7 weeks of supervised physical rehabilitation without PST in improving functional performance, measured as the maximal walking distance in 6 minutes, at the primary end point 8 weeks after fast-track TKA.Copyright © 2014 by the American College of Rheumatology.

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