Interferential Current Therapy After Total Knee Arthroplasty

Study Overview
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Brief Summary
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Interferential current is widely used as a popular treatment in painful musculoskeletal disorders. And total knee arthroplasty patients present with extreme pain immediately after surgery. So this study is aimed to investigate the effectiveness of interferential current implementation following total knee arthroplasty surgery. In this study interferential current compared with sham interferential current . Patients were assessed with pain, range of motion , edema and the amount of used paracetamol.

Detailed Description
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A total of 132 patients ranging in 60-85 years who were undergoing their first total knee arthroplasty due to knee OA were recruited into a randomized, double-blind, prospective and controlled study. Participants were recruited at the Orthopedics and Traumatology inpatient clinic. The patients were seen postoperative first day and were assigned to receive either interferential current or sham interferential current by block randomization. After the procedure was explained to each subject, interferential current treatment was applied 2 times for 5 days, each treatment was continued approximately 30 minutes. Four electrodes were used to deliver quadripolar interferential current Subjects were told that in order to produce an effect, the intensity of the stimulator must be maintained at a strong but comfortable level at all times. The sham interferential current treatment consisted of the placement of the same pads for the same time but no electrical stimulation was applied to the probes. At the same time, all patients received standard postoperatively rehabilitation program. Patients were assessed with pain, range of motion , edema and the amount of used paracetamol.

Official Title
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Is Interferential Current Effective in the Management of Pain, Range of Motion, Edema Following Total Knee Arthroplasty Surgery?: Randomized Double-blind Controlled Trial

Conditions
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Total Knee Arthroplasty

Intervention / Treatment
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* Device: Interferential Current
* Device: Sham Interferential Current


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: •Patients who underwent total knee arthroplasty surgery Exclusion Criteria: Patients who had experienced of any electrotherapy prior to the TKA to be sure blinding of therapy Patients who had history of any contraindication for electrotherapy Patients who had chronic pain rather than knee OA Patients who had experienced a known or suspected joint infection or a specific condition (ie, peripheral or central nervous system lesions, neoplasm, diabetes mellitus, osteonecrosis, recent trauma and pacemaker) Patients who had history of stroke, central nervous disease, mental impairment or poor general health status that would interfere with functional assessments during the study
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Supportive Care
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Interferential Current Treatment<br>Interferential Current group received interferential current treatment 30 minutes, 2 times a day for 5 days after the surgery. | Device: Interferential Current<br> <br> |
| Sham Comparator: Sham Interferential Current Treatment<br>In the sham interferential Current treatment, no electrical stimulation was applied to the probes with the same pads for the same time. | Device: Sham Interferential Current<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Pain from baseline measured by visual analog scale | Pain intensity that was measured by visual analog scale (minimum score:0; maximum score:100)(higher values represent worse outcome) | Change in pain measured 5th and 30th days after surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change of Range of Motion from baseline | The measurement of the range of the motion was performed by a goniometer of active extension and flexion (higher values represent better outcome) | Change of Range of Motion measured 5th and 30th days after surgery | 
| Change of Edema from baseline | Edema as a change in circumference from the preoperative value was measured by a meter (higher values represent worse outcome) | Change of Edema measured 5th and 30th days after surgery | 
| Amount of used paracetamol | the paracetamol intake was recorded as gr. (higher values represent worse outcome) | 5th and 30th days after surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pain, surgery, interferential current, total knee arthroplasty