Efficacy of High Power Laser Versus Low Level Laser in Ultrasonographic and Functional Outcomes in Patients With Knee Osteoarthritis

Knee Osteoarthritis Clinical Trial

— OA  

Official title:

Efficacy of High Power Laser Versus Low Level Laser in Ultrasonographic and Functional Outcomes in Patients With Knee Osteoarthritis

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06419569
• Other study ID #: P.T.REC/012/003450
• Status: Not yet recruiting
• Phase: N/A
• Start date: May 30, 2024
• Est. completion date: December 15, 2024

Study information

• Verified date: May 2024
• Source: Cairo University
• Contact: mohamed H abdo, doctoral
• Phone: 01007433819
• Email: theorymtc[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

this study will be conducted to compare between high power laser and low-intensity laser on ultrasonographic and functional outcomes in patients with knee osteoarthritis

Description:

Osteoarthritis (OA) is a major source of pain, disability, and socioeconomic cost worldwide. The epidemiology of the disorder is complex and multifactorial, with genetic, biological, and biomechanical components. It is estimated that 63 to 85 percent of Americans over age 65 have radiographic signs of OA and that 35 to 50 percent have symptoms of pain, stiffness or limitation of motion. Between 9 and 12 percent of elderly Americans (approximately 3 million people) have enough impairment from OA that they cannot perform their major activities, and half of these individuals are totally disabled (confined to bed or a wheelchair). High power laser therapy (HPL) that involves higher-intensity laser radiation is a new, painless, and powerful modality that showed significant results in pain reduction. One of the modalities commonly used by clinicians was Low Level Laser Therapy introduced as an alternative, safe and non-invasive treatment for OA about 30 years ago.A more recent systemic review investigated the effects of low-level and high-intensity laser therapy as adjunctive to rehabilitation exercise on pain, stiffness and function in knee osteoarthritis and concluded that Both LLLT and HPL are beneficial as adjuncts to rehabilitation exercise in the management of knee OA. Based on an indirect comparison, the HPL and exercise seems to have higher efficacy in reducing knee pain and stiffness, and in increasing function. To confirm this finding, a direct comparative investigation of the two types of laser therapy may be necessary. ninety patients with knee osteoarthritis will be assigned randomly to three groups; the first experimental will receive high power laser plus conventional physical therapy, second one will receive low-intensity laser and traditional physical therapy, finally, the third group will receive traditionally therapy only

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 90
• Est. completion date: December 15, 2024
• Est. primary completion date: December 15, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 45 Years to 75 Years

Eligibility

Inclusion Criteria:

• X-ray stages II and III osteoarthritis

• Age between 45 and 75 years.

• BMI equal to or less than 35.

Exclusion Criteria:

• Unwillingness to participate in the study.

• Uncompleted evaluation/treatment programs.

• Any damage to the knee joint during the study.

• Using any treatment other than prescribed therapeutic protocols.

Related Conditions & MeSH terms

• Knee Osteoarthritis
• Osteoarthritis
• Osteoarthritis, Knee

Intervention

Other:
• high power laser
Sessions will performed with scanning in longitudinal and perpendicular direction on the medial and lateral sides of the knee with Laser scanner machine. handpiece was positioned in contact and perpendicularly while the patient in a supine lying position with the knee flexed at 30° to open the joint surfaces to the laser beam (optical windows). The scanning was performed transversely and longitudinally in the anterior, medial, and lateral aspects of the knee joint with emphasis on the application on the joint line between the tibial and femoral epicondyles. The total energy delivered to the patient during one session was 1,250 J through three phases of treatment. The initial phase is performed with fast manual scanning with a total of 500 J. In the initial phase, the laser fluency is set to two successive subphases of 710 and 810 mJ/cm2 for a total of 500 J.
• low level laser
patients will receive laser with 0.5 W to gain energy density of 6 J/cm2, and total energy of 240 J during one session. LASER apparatus that will be used is Chattanoga Intelect Laser with 850nm wavelength and 200mW power Lasers. Same three phases like HPL with different energy dose. First phase: Fast manual scan 100 J. Second 10 point joint line phase with evey point 14 seconds and 4J to deliver a total of 40 J in this phase. Third phase: Slow manual scan 100 J.
• conventional physical therapy
the patients will receive conventiobal physical therapy in the form of Exercise therapy program (1) Warm-up exercises: Walking at the usual speed on a flat surface for 10 min with hamstring and calf gentle stretches.(2) Major exercises for knee OA: Straight leg raise, quadriceps setting, heel raise, one leg balance, step ups, and quadriceps strengthening exercises. The US protocol consists of continuous ultrasonic waves of 1 MHz frequency and 1 W/cm2 intensity applied with a 5-cm diameter applicator. The patients will be placed in a supine position, and the US applied to the medial and lateral parts (5 min on each side) of the knee in circular movements with the probe at right angles to ensure maximum absorption of the energy.

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Cairo University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	osteophyte diameter	ultrasonographe device will be used to assess the osteophyte diameter	up to eight weeks
Primary	hyaline cartilage thickness assessment	utrasonographe device will be used to assess hyaline cartilage thickness	up to eight weeks
Secondary	knee function	Knee Injury and Osteoarthritis Outcome Score questionnaire will be used to assess knee function.five patient-relevant subscales of KOOS are scored separately: Pain (nine items); Symptoms (seven items); ADL Function (17 items); Sport and Recreation Function (five items); Quality of Life (four items). A Likert scale is used and all items have five possible answer options scored from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores is calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems as common in orthopaedic assessment scales and generic measures. Scores between 0 and 100 represent the percentage of total possible score achieved.	up to eight weeks
Secondary	pain intensity	Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. A higher score indicates greater pain intensity. The following cut points on the pain VAS have been recommended: no pain (0-4 mm), mild pain(5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm)	up to eight weeks
Secondary	knee range of motion	digital goniometer will be used to assess knee range of motion	up to eight weeks
Secondary	pressure pain threshold	algometer will be used to assess pressure pain threshold	up to eight weeks