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Effects of pulsed ultrasound with low-intensity on recovery of physical impairments after total knee arthroplasty: a preliminary quasi-experimental study

Munajat, Munayati and Mohd Nordin, Nor Azlin and Mohamad Yahya, Nor Hamdan and Zulkifly, Ahmad Hafiz (2021) Effects of pulsed ultrasound with low-intensity on recovery of physical impairments after total knee arthroplasty: a preliminary quasi-experimental study. Malaysian Journal of Medicine and Health Sciences, 17 (2). pp. 162-168. ISSN 1675-8544 E-ISSN 2636-9346

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Abstract

Introduction: Total knee arthroplasty (TKA) commonly cause physical impairments, which necessitate physiotherapy post-operatively. Low-intensity pulsed ultrasound is an adjuvant treatment to conventional physiotherapy; howev- er, its effects on TKA recovery require further investigation. The study aimed to ascertain the outcome of adding low-intensity pulsed ultrasound therapy into conventional physiotherapy on recovery from physical impairments after TKA. Methods: This assessor-blinded quasi-experimental study was conducted in a tertiary medical centre in Central Malaysia. Patients with TKA due to grade III and IV knee osteoarthritis (Kellgren-Lawrence grading system) were alternately allocated into either an experimental group (n=10) or a control group (n=10). Other than low-in- tensity pulsed ultrasound as received by the experimental group’s participants, the two groups received the same amount and content of conventional physiotherapy. Participants’ pain, knee swelling, active knee flexion range, and quadriceps strength were assessed at baseline, week 1 of the intervention, and the 1-week follow-up. The two interventions’ effects were analysed using a mixed model ANOVA. Results: The pain score and knee swelling de- creased (P<0.05), while the knee flexion range and quadriceps strength increased significantly (P<0.001) after both interventions. The experimental group had a significantly lower pain score [3.07(2.18) at visual analogue scale] and a greater active knee flexion range [80.48(26.42) degrees] compared to the control group [pain score=4.29(1.54); knee flexion=67.00(25.15) degrees] following the interventions. There were no significant interaction effects for all outcomes. Conclusion: The combination of low-intensity pulsed ultrasound into a conventional physiotherapy pro- gram demonstrated more promising results in pain alleviation and knee motion recovery following TKA.

Item Type: Article (Journal)
Uncontrolled Keywords: Pulsed ultrasound, Rehabilitation, Total knee arthroplasty
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
Kulliyyah of Allied Health Sciences > Department of Physical Rehabilitation Sciences
Kulliyyah of Medicine
Kulliyyah of Medicine > Department of Department of Orthopaedics, Traumatology & Rehabilitation
Depositing User: Miss Munayati Munajar@Munajat
Date Deposited: 09 Sep 2021 09:55
Last Modified: 09 Sep 2021 09:55
URI: http://irep.iium.edu.my/id/eprint/92090

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