The analgesic effect of thermal therapy after total knee arthroplasty

Ching H. Wong, Leou C. Lin, Hsieh H. Lee, Chi Feng Liu

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Objectives: Pain induced by surgery is a dynamic symptom, which may be quite variable even in the same surgical procedures. The purpose of this study was to investigate the analgesic effect of far infrared rays on the patients during the postoperative period of total knee arthroplasty (TKA). The selection and application of analgesic methods after the orthopedic surgery are therefore valuable for advanced studies. Design: The quasi-experimental design with a total five consecutive days of far infrared ray (FIR) thermal therapy was employed in this study. Subjects: The study involved 41 participants assigned by register code entry on computer to either the intervention or the control group. Intervention: The FIR pads were applied on the acupoints of ST 37 (Shang Chu Hsu), ST 38 (Tiao Kou), ST 39 (Hsia Chu Hsu), and ST 40 (Feng Lung) of the patients involved in the experimental group from the third day to the fifth day after the TKA. Outcome measures: The analgesic effect was evaluated via the pain intensity of the numeric rating scale (NRS) level and serum concentration of interleukin-6 (IL-6) and endothelin-1 (ET-1). Results: The FIR showed that the significant effects are on relieving pain and lowering the levels of IL-6 and ET-1. The results cannot only be the reference for the postoperative pain relief of TKA, but it can also be the database of another clinical application. Conclusions: This study demonstrated that the FIR can lower the NRS of pain and thus reduce the discomfort experienced by the patient. Findings indicated that effective application of FIR decreased the serum level of IL-6 and ET-1, which represent the subjective indicator of pain.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalJournal of Alternative and Complementary Medicine
Volume18
Issue number2
DOIs
Publication statusPublished - Feb 1 2012

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Infrared Rays
Knee Replacement Arthroplasties
Analgesics
Hot Temperature
Pain
Endothelin-1
Interleukin-6
Therapeutics
Acupuncture Points
Postoperative Pain
Serum
Postoperative Period
Orthopedics
Research Design
Outcome Assessment (Health Care)
Databases
Lung
Control Groups

ASJC Scopus subject areas

  • Complementary and alternative medicine

Cite this

The analgesic effect of thermal therapy after total knee arthroplasty. / Wong, Ching H.; Lin, Leou C.; Lee, Hsieh H.; Liu, Chi Feng.

In: Journal of Alternative and Complementary Medicine, Vol. 18, No. 2, 01.02.2012, p. 175-179.

Research output: Contribution to journalArticle

Wong, Ching H. ; Lin, Leou C. ; Lee, Hsieh H. ; Liu, Chi Feng. / The analgesic effect of thermal therapy after total knee arthroplasty. In: Journal of Alternative and Complementary Medicine. 2012 ; Vol. 18, No. 2. pp. 175-179.
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