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The efficacy of Low Level Laser Therapy (LLLT) in knee osteoarthritis

The efficacy of Low Level Laser Therapy (LLLT) in knee osteoarthritis: A randomized double-blind controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN24010862
Enrollment
42
Registered
2013-02-05
Start date
2010-09-18
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee osteoarthritis Musculoskeletal Diseases Gonarthrosis [arthrosis of knee]

Interventions

On the affected knee, the laser probe was sequentially and perpendicularly placed in a full contact with the skin at five acupuncture points on and around the affected knee. In the active laser group,

Sponsors

Security Forces Hospital (Saudi Arabia)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients who had knee OA (both male and female aged 35 and over) according to the American College of Rheumatology criteria 2. Had an average pain intensity of 3 or more on a 10 cm visual analogue scale (VAS) 3. Had an ability to practice all movements included in the evaluation forms 4. Had the ability to read or understand the patient information sheets and the ability to sign a consent form

Exclusion criteria

Exclusion criteria: 1. Patients with previous knee surgery, serious valgus or varus deformity and any disease where laser treatment is contraindicated, such as cancer, uncontrolled diabetes mellitus and hypertension 2. Patients already using medications that may interfere with LLLT treatment for less than six weeks, such as corticosteroid injections

Design outcomes

Primary

MeasureTime frame
The change in the VAS scores for pain during movement. It consists of a 10 cm line anchored at each end (0 = no pain, 10 = unbearable pain). All evaluations for both primary and secondary outcomes were administrated at the 5th treatment session, at the 9th treatment session, after 6 weeks, and after 6 months of the last treatment session. All evaluations were performed by the investigator.

Secondary

MeasureTime frame
1. The Saudi knee functional scale (SKFS): It is a multidimensional self-administered, and Arabic language instrument that emphasises pain (8 items), stiffness (2 items), physical function activities (12 items), social activities (3 items), and psychological activities (3 items) related to KOA. 2. The degree of active knee angle flexion: measured by goniometer 3. Knee circumference (KC): was measured using a standard tape measure at the middle of the patella with the knee extended. 4. Patient satisfaction: each participant was asked to rate his satisfied about the intervention that has been received, if he has gotten any benefit. The assessment was performed using a verbal numeric scale (end-points 0% no improvement or benefit to 100% full improvement or benefit; in blocks of 5%). Evaluation started at the 5th session as a baseline, then at , at the 9th treatment session, after 6 weeks, and after 6 months of the last treatment session.

Countries

Saudi Arabia

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026