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Continuous passive motion after arthroscopically assisted anterior cruciate ligament reconstruction: comparison of short- versus long-term use
Richmond JC, Gladstone J, MacGillivray J
Arthroscopy 1991;7(1):39-44
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; 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*

The use of continuous passive motion (CPM) following anterior cruciate ligament (ACL) reconstruction has become common. The duration of use of CPM for maximal therapeutic benefit is not known. This study compared 4-day CPM use with 14-day CPM use following arthroscopic ACL reconstruction using a bone-patellar tendon-bone autograft prospectively in 20 patients. The patients were randomly allocated to the CPM 4-day group (6 h daily CPM for 4 days in hospital followed by intermittent passive motion (IPM) at home) or to the CPM 14-day group (6 h daily CPM for 14 days). The objective parameters measured were girth measurements at four lower limb locations for joint swelling and muscle atrophy; range of motion of the knee, measured goniometrically; and KT-1000 arthrometry measurements for joint laxity. The measurements were made prior to surgery, and on days 2, 7, 14, and 42, postoperatively. There were no statistically significant differences (p > 0.05) at 42 days postoperatively between groups in all parameters measured with the exception of KT-1000 laxity at 42 days.
Copyright by Arthroscopy Association of North America.

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