Janet A Herbold1, Kristen Bonistall2, Marielle Blackburn2, Jonila Agolli3, Shawn Gaston3, Chana Gross3, Aleksandra Kuta3, Suzanne Babyar3. 1. Department of Outcomes and Clinical Research, Burke Rehabilitation Hospital, White Plains, NY; Department of Physical Therapy, Nova Southeastern University, Fort Lauderdale, FL. Electronic address: jherbold@burke.org. 2. Department of Outcomes and Clinical Research, Burke Rehabilitation Hospital, White Plains, NY. 3. Department of Physical Therapy, Hunter College/Graduate Center of City, University of New York, New York, NY.
Abstract
OBJECTIVE: To determine the effects of using a continuous passive motion (CPM) device for individuals with poor range of motion (ROM) after a total knee replacement (TKR) admitted for postacute rehabilitation. DESIGN: Randomized controlled trial. SETTING:Inpatient rehabilitation facility (IRF). PARTICIPANTS: Adults (N=141) after TKR with initial active knee flexion <75° on admission to the IRF. INTERVENTION: Two randomized groups: group 1 (n=71) received the conventional 3 hours of therapy per day, and group 2 (n=70) received the addition of daily CPM use for 2 hours throughout their length of stay. MAIN OUTCOME MEASURES: The primary outcome measure was active knee flexion ROM. Secondary outcome measures included active knee extension ROM length of stay, estimate of function using the FIM and Timed Up and Go test, girth measurement, and self-reported Western Ontario and McMaster Universities Osteoarthritis Index scores. RESULTS: All subjects significantly improved from admission to discharge in all outcome measures. However, there were no statistically significant differences in any of the discharge outcome measures of the CPM group compared with the non-CPM group. CONCLUSIONS: CPM does not provide an additional benefit over the conventional interventions used in an IRF for patient after TKR, specifically in patients with poor initial knee flexion ROM after surgery.
RCT Entities:
OBJECTIVE: To determine the effects of using a continuous passive motion (CPM) device for individuals with poor range of motion (ROM) after a total knee replacement (TKR) admitted for postacute rehabilitation. DESIGN: Randomized controlled trial. SETTING: Inpatient rehabilitation facility (IRF). PARTICIPANTS: Adults (N=141) after TKR with initial active knee flexion <75° on admission to the IRF. INTERVENTION: Two randomized groups: group 1 (n=71) received the conventional 3 hours of therapy per day, and group 2 (n=70) received the addition of daily CPM use for 2 hours throughout their length of stay. MAIN OUTCOME MEASURES: The primary outcome measure was active knee flexion ROM. Secondary outcome measures included active knee extension ROM length of stay, estimate of function using the FIM and Timed Up and Go test, girth measurement, and self-reported Western Ontario and McMaster Universities Osteoarthritis Index scores. RESULTS: All subjects significantly improved from admission to discharge in all outcome measures. However, there were no statistically significant differences in any of the discharge outcome measures of the CPM group compared with the non-CPM group. CONCLUSIONS: CPM does not provide an additional benefit over the conventional interventions used in an IRF for patient after TKR, specifically in patients with poor initial knee flexion ROM after surgery.
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