1. Author
(year)
PEDro Study
Design
Number of
Participants
Intervention Primary
Outcome
Secondary
Outcome
Conclusion
Maniar
et al.
(2012)
7 Randomized
controlled
trial
84 Control: conventional physical
therapy
Experimental 1: conventional
physical therapy and 2 CPM
applications of 15 minutes on
day 2 after TKA
Experimental 2: conventional
physical therapy and 2 CPM
applications of 15 minutes each
for 3 days
Pain on
VAS, AROM,
TUGscore,
swelling,
WOMAC,
wound
healing
There was no
significant
beneficial role of
CPM in the
immediate
functional
recovery after
TKA.
Denis et
al.
(2006)
7 Randomized
clinical trial
81 Control: conventional physical
therapy only
Experimental 1: conventional
physical therapy and 35 minutes
of CPM applications daily
Experimental 2: conventional
physical therapy and 2 hours of
CPM applications daily
Activeknee
flexion
AROM at
discharge
Activeknee
extension
AROM, TUG
score,
WOMAC
score, length
of stay
There were no
significant
differences in
outcome
measures found
amongst the
three groups in
primary or
secondary
outcome
measures.
Herbold
et al.
(2014)
6 Randomized
controlled
trial
141 Control: conventional therapy 3
hours/day
Experimental: conventional
therapy and daily CPM
application for 2 hours/day
Discharge
knee
flexion
AROM
Knee
extension
AROM, total
FIM score,
TUGscore,
girth,
WOMAC
score
The study
demonstrated no
significant benefit
of CPM use
during post-acute
rehabilitation
phase compared
to conventional

2. care.
Boese et
al.
(2014)
6 Randomized
controlled
trial
160 Control: no CPM
Experimental 1: CPM device on
and moving from immediate
post-operative period
Experimental 2: CPM device on
and stationary at 90 degrees
flexion forthe first night and
moving throughout rest of stay
Change in
hemoglobin
level,
AROM,
girth
Cost data The use of CPM
provided no
apparent benefit
to patients
recovering from
TKA in all
outcome
variables.
Hospital costs can
be reduced
without the use
of CPMS.
Herbold
et al.
(2012)
5 Matched
cohortstudy
122 Control: no CPM
Experimental: Use of CPM for 2
hours/day as an adjunct to
conventional 3 hours of therapy
in an inpatient rehabilitation
facility
Discharge
activeknee
flexion
AROM and
flexion gain
FIM scores,
discharge
ambulation
device,
destination
after
discharge,
need for
home care
services
after
inpatient
stay
There was no
significant
difference found
in the outcome
measures, as the
results do not
support the use
of CPM in an
inpatient
rehabilitation
facility as an
adjunct to
physical therapy.

3. Boese, CK., Weis, M., Phillips, T., Lawton-Peters, S., Gallo, T., Centeno, L. (2014). The efficacy of continuous passive motion after
total knee arthroplasty: a comparison of three protocols. Journal of Arthroplasty, 29(6), 1158-62.
Doi:10.1016/j.arth.2013.12.005.
Denis, M., Moffet, H., Caron, F., Ouellet, D., Paquet, J., Nolet, L. (2006). Effectiveness of continuous passive motion and
conventional physical therapy after total knee arthroplasty: a randomized clinical trial. Physical Therapy, 86(2), 174-85.
Herbold, JA., Bonistall, K., & Blackburn, M. (2012). Effectiveness of continuous passive motion in an inpatient rehabilitatio n
hospital after total knee replacement: a matched cohort study. PM&R, 4(10), 719-725. Doi:10.1016/j.pmrj.2012.07.004.
Herbold, JA., Bonistall, K., Blackburn, M., Agolli, J., Gaston, S., Gross, C., Kuta, A., & Babyar, S. (2014). Randomized controlled trial
of the effectiveness of continuous passive motion after total knee replacement. Archives of Physical Medicine and
Rehabilitation, 95(7), 1240-5. Doi: 10.1016/j.apmr.2014.03.012.
Maniar, RN., Baviskar, JV., Singhi, T., Rathi, SS. (2012). To use or not to use continuous passive motion post-total knee
arthroplasty presenting functional assessment results in early recovery. Journal of Arthroplasty, 27(2), 193-200.
Doi:10.1016/j.arth.2011.04.009.
Darcy James
February 13, 2015
PHT 769