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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05033977
Other study ID # GO 2021/049
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date July 1, 2018
Est. completion date April 1, 2020

Study information

Verified date August 2021
Source Hacettepe University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Osteoarthritis (OA) of the knee is a chronic disease characterized by pain, reduced range of motion, instability and effusion in the joint. Moreover, no study has investigated the effect of Platelet-rich Plasma (PRP) in comparison with that of a placebo injection in the same patient with bilateral knee OA. The purpose of this study was to compare the effectiveness of supervised physiotherapy and home exercises after PRP injection in patients with knee OA. The investigator hypothesized that the supervised physiotherapy program would be more effective in decreasing pain and improving muscle strength, physical function, and quality of life than home exercises following PRP injection in patients with knee OA. A total of 30 patients with complete follow-up to 6 weeks post-intervention; 17 patients randomized to the supervised exercise group and 13 patients randomized to the home exercise group. Subjects were recruited from who had radiographic evidence (Kellgren-Lawrence Grade II-III) of knee OA and ranged from 45 to 70 years of age. Measurements including pain during rest and activity, muscle strength assessment, self-estimated functions of the affected knee and functional performance tests for lower extremity strength were performed.


Description:

A total of 30 patients with complete follow-up to 6 weeks post-intervention; 17 patients randomized to the supervised exercise group and 13 patients randomized to the home exercise group. Subjects were recruited from who had radiographic evidence (Kellgren-Lawrence Grade II-III) of knee OA and ranged from 45 to 70 years of age. Measurements including pain during rest and activity, muscle strength assessment, self-estimated functions of the affected knee and functional performance tests for lower extremity strength were performed. Pain Measurement Visual Analog Scale was used to assess the subjects' pain during rest and activity. A 10 cm line was driven and subjects was wanted to mark the point (0; no pain, 10; worst imaginable pain) as representing the pain during rest and activity. Muscle Strength Measurement Quadriceps, hamstring muscles and the hip stability isometric test (HipSIT) strength were measured with a hand-held digital dynamometer. Each subject was verbally informed before the test in order to ensure correct movement and subjects were asked to perform submaximal contraction against the evaluator's hand before testing. ''Break test'' technique was performed for the strength measurement. According to this technique, the evaluator gradually overcomes the muscle strength and stops when the joint gives way. The quadriceps muscle strength was measured in a sitting position (Hip 90° flexion, knee extended) with hands crossed across the chest. The hand-held dynamometer was positioned on the anterior surface of the lower leg proximal to the ankle during test. Hamstring muscle group measurement was carried out on prone position (Hip neutral position, knee flexion 90°). The hand-held dynamometer was positioned on the posterior surface of the lower leg proximal to the ankle during test. The HipSIT evaluates the abductor, external rotator and extensor muscles of the hip together. This test was performed in a side-lying position (Hips 45° flexion, knees 90° flexion, heels in contact with the limb tested superior to opposing limb as 20° abduction). The hand-held dynamometer was placed on laterally positioned 5 cm above the knee joint interline during test. Each measurement for each muscle was performed 3 times at 30 sec intervals and the higher value was recorded. There was also a minute interval between muscle groups measurements. Functional Status The Western Ontario and McMaster Universities (WOMAC) index is a disease specific self-administered test for OA to assess functions of the affected joints. It consists of 24 questions (three subscale; pain (5 questions), stiffness (2 questions) and daily activities (17 questions). Interventions Each subject was informed about knee OA and daily activities that negatively affect the knee OA. They were also asked to use cold press 3 times (10-15 min) a day for 6 weeks. Supervised physiotherapy group performed exercises 3 times a week for 6 weeks under supervision of a physiotherapist after the first evaluation. The subjects in home exercise group were taught exercises and they were informed to do exercises 3 times a week for 6 weeks. Home exercise group was telephoned to motivate them to do exercise or to find out if they have any problem about the exercises once a week for 6 weeks. The exercise programs for each group consisted of these parts: warm up, strengthening, balance and cool down period. The standard exercises were performed by all of the subjects in each group in order to standardize the exercise procedure. We used OMNI Resistance Exercise Scale for perceived effort to standardize elastic-band (Thera-Band; The Hygenic Corporation, Akron, OH) resistance among subjects. Subjects were asked to do 3 repetitions for each exercise starting with lowest resistance elastic band, and the resistance of the elastic band was increased until it reached 5 on the 11-point scale to determine the appropriate elastic band. Second measurements were performed at the end of 6 weeks, the day of routine doctor control for PRP injection. All assessments were performed by the same physiotherapist.


Recruitment information / eligibility

Status Completed
Enrollment 30
Est. completion date April 1, 2020
Est. primary completion date July 1, 2019
Accepts healthy volunteers No
Gender Female
Age group 45 Years to 70 Years
Eligibility Inclusion Criteria: - patients with knee osteoarthritis - Patients with PRP injections Exclusion Criteria: - have any neurologic disease - have any oncologic disease - have any other intraarticular injection last 6 months

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Exercise (center-based)
Exercise therapy with a physical therapist in a clinic.
Exercise (home-based)
Patients did exercises at home every day and 3 times per day.

Locations

Country Name City State
Turkey Hacettepe University Ankara Samanpazari

Sponsors (1)

Lead Sponsor Collaborator
Hacettepe University

Country where clinical trial is conducted

Turkey, 

Outcome

Type Measure Description Time frame Safety issue
Primary Visuel analogue scale Visual Analog Scale was used to assess the subjects' pain during rest and activity. A 10 cm line was driven and subjects was wanted to mark the point (0; no pain, 10; worst imaginable pain) as representing the pain during rest and activity 6 weeks
Primary Muscle Strenght Quadriceps, hamstring muscles and the hip stability isometric test (HipSIT) strength were measured with a hand-held digital dynamometer. Each subject was verbally informed before the test in order to ensure correct movement and subjects were asked to perform submaximal contraction against the evaluator's hand before testing. ''Break test'' technique was performed for the strength measurement. 6 weeks
Secondary Physical Function A 30-sec chair stand test and stair climb test were used to assess physical performance. The subjects were asked to stand up from a chair (height: 43cm) and sit down in 30 sec with their arms folded across the chest during the 30-sec chair stand test. The number of the repetitions were recorded. The subjects were asked to ascend and descend 10 steps (step height 20 cm) at a safe and comfortable pace during the stair climb test. The time (sec) of stair ascend and descend were recorded separately. 6 weeks
Secondary Knee Function The Western Ontario and McMaster Universities (WOMAC) index is a disease specific self-administered test for OA to assess functions of the affected joints. It consists of 24 questions (three subscale; pain (5 questions), stiffness (2 questions) and daily activities (17 questions) 6 weeks
Secondary Weight participants' weight was measured with a digital scale 6 weeks
Secondary Height participants' height was measured with a tape measure 6 weeks
Secondary Body mass index (BMI) Body Mass Index was calculated using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in metres squared. 6 weeks
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