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Treatment of severe flexion deficits following total knee arthroplasty: a randomized clinical trial
Papotto BA, Mills T
Orthopaedic Nursing 2012 Jan;31(1):29-34
clinical trial
6/10 [Eligibility criteria: Yes; 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: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

PURPOSE: To determine whether passive knee flexion and knee-specific outcome scores differ in TKA patients experiencing arthrofibrosis treated with differing intensity of stretch exercises. DESIGN: Randomized controlled trial. SAMPLE: Twenty patients who volunteered and met inclusion criteria were randomly assigned to an intervention group. TREATMENT: Group 1 received high-intensity stretch home mechanical therapy (n = 11) and group 2 received low-intensity stretch home mechanical therapy (n = 9). FINDINGS: The HIS group demonstrated significantly greater gains in both passive knee flexion and outcome scores. The change in passive knee flexion significantly correlated with the change in outcome scores, and a significantly greater number of patients in the HIS group (91%) were able to achieve a functional range of motion > 110degrees than those in the LIS group (22%, p < 0.001). CONCLUSION: Treatment of postoperative arthrofibrosis with an HIS home mechanical therapy device was more effective and resulted in significantly improved outcomes when compared with LIS devices.

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