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The effect of continuous passive motion on wound-healing and joint mobility after knee arthroplasty |
Johnson DP |
Journal of Bone and Joint Surgery -- American Volume 1990 Mar;72(3):421-426 |
clinical trial |
5/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
A prospective, controlled, randomized trial of continuous passive motion and immobilization after knee arthroplasty revealed that continuous passive motion significantly improved early and late flexion of the knee, reduced the duration of stay in the hospital, and did not increase the incidence of superficial infection or problems with wound-healing. Flexion of the knee beyond 40 degrees progressively diminished viability of the edges of the wound, particularly the lateral edge. On the basis of these results, a protocol for continuous passive motion was designed to minimize the detrimental effects on viability of the wound.
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