Article

OBJECTIVE: To investigate the potential benefits of the lidocaine patch 5% for
pain control during the postoperative period after a total knee arthroplasty (TKA).
A prospective cohort study in which we analyzed patients
admitted to an inpatient rehabilitation unit after a TKA. PARTICIPANTS:
Fifty-three consecutive patients who underwent a TKA and were admitted to an
orthopedic rehabilitation unit. METHODS: Thirty-one patients received the
lidocaine patch 5%, and 22 patients served as the control group. On the day of
admission, the 24-item Western Ontario and McMaster Universities Arthritis Index
(WOMAC) was used to evaluate each patient's pain and functional capacity before
surgery. The Visual Analog Scale (VAS) was used to assess pain ratings every
other day starting on rehabilitation day 1. The average end point of the study
was rehabilitation day 11. MAIN OUTCOME MEASURES: The primary outcome measure was
the change in VAS from day of admission. Secondary outcomes in the lidocaine
patch 5% group consisted of length of use and a patient satisfaction survey.
RESULTS: The lidocaine patch 5% and control group were demographically well
matched. The average admission WOMAC score was 49.3 and 57.1 for the lidocaine
patch 5% and control groups, respectively. The average length of stay was 13.2
+/- 5.1 days for the lidocaine patch 5% group and 12.4 +/- 3.7 days for the
control group. A statistically significant difference in VAS was found on day 3
(P = .05) between the 2 groups, with the control group demonstrating better pain
relief. However, both groups reported similar pain improvements by the end of
their hospital stay. Of the 31 patients receiving lidocaine patch 5%, 94% of the
patients reported satisfaction and attributed pain relief to its use.
CONCLUSIONS: Overall, the concurrent use of lidocaine patch 5% in treating the
postoperative pain of patients after TKA does not provide significant additional
pain relief compared with control subjects.
CI - Copyright (c) 2012 American Academy of Physical Medicine and Rehabilitation.
Published by Elsevier Inc. All rights reserved.

Langue : ANGLAIS