Effects of low-intensity pulsed ultrasound on pain and recovery of range of motion after total knee arthroplasty: preliminary study

Munajat, Munayati and Mohd Nordin, Nor Azlin and Mohamad Yahaya, Nor Hamdan and Zulkifly, Ahmad Hafiz (2019) Effects of low-intensity pulsed ultrasound on pain and recovery of range of motion after total knee arthroplasty: preliminary study. In: Graduate Research Symposium 2019, Subang Jaya, Selangor. (Unpublished)

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Abstract

Introduction: Pain and limitation in knee range of motion (ROM) during the immediate postoperative period are the common outcomes after total knee arthroplasty (TKA) procedure. Low-intensity pulsed ultrasound in combination with cryotherapy is a promising physiotherapy intervention which has been shown to help in relieving inflammation and improving recovery of joint function of patients with TKA. However, the documentation on the effects of combining low-intensity pulsed ultrasound in post-operative rehabilitation programme is limited. Therefore, this study was conducted to determine the effects of low-intensity pulsed ultrasound as in-addition to conventional physiotherapy on pain and knee ROM in patients with TKA. This study also aimed to assess the relationship between the recovery of knee ROM and pain following the combined intervention. Method: This was an assessor-blinded quasi-experimental study among patients with TKA at the Universiti Kebangsaan Malaysia Medical Centre. Participants were alternately allocated to receive either pulsed ultrasound-added conventional physiotherapy (n=10, experimental group) or conventional physiotherapy alone (n=10, control group) for 3 weeks. Visual analogue scale and goniometer were used to assess post-operative pain and active knee ROM, respectively. The outcomes were evaluated at baseline (post-operative day 2), week 1 and week 4 after TKA. Mixed model ANOVA and Spearman’s rho were used to analyze the data. Result: This study showed a significant time and group effects for pain and knee ROM following interventions. The pain score decreased (p<0.05) and knee flexion range increased significantly (p<0.001) after both interventions. Participants in pulsed ultrasound-added physiotherapy group had lesser pain and greater knee flexion range compared to control group participants (p<0.05). However, there was no significant interaction effects for both outcomes. Besides, there was no significant correlation between knee ROM and pain following low-intensity pulsed ultrasound as an adjunct to conventional physiotherapy (p>0.05). Discussion and Conclusion: The findings from this study provide physiotherapists and other healthcare providers knowledge regarding the effects of combining low-intensity pulsed ultrasound in post-operative rehabilitation following TKA. The combined intervention demonstrated more promising results in pain alleviation and recovery of knee motion following TKA. Further study with larger sample size is needed to establish this study findings. Keywords: low-intensity pulsed ultrasound, physiotherapy, total knee arthroplasty

Item Type:	Conference or Workshop Item (Slide Presentation)
Subjects:	R Medicine > RM Therapeutics. Pharmacology > RM695 Physical medicine. Physical therapy
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Allied Health Sciences > Department of Physical Rehabilitation Sciences
Depositing User:	Dr Munayati Munajar@Munajat
Date Deposited:	01 Nov 2021 16:25
Last Modified:	01 Nov 2021 16:25
URI:	http://irep.iium.edu.my/id/eprint/92094

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