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Low Level Laser Therapy Versus Short Wave Diathermy in Patients With Anterior Cruciate Ligament Tear

NCT07089459 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 72

Last updated 2025-08-03

No results posted yet for this study

Summary

This clinical research study is comparing two non-surgical treatments-Low-Level Laser Therapy (LLLT) and Short Wave Diathermy (SWD)-to see which is more effective for people with a partial tear of the anterior cruciate ligament (ACL) in the knee. The ACL is a key ligament that helps keep the knee stable during movement. When partially torn, it can cause pain, weakness, and difficulty with walking or physical activities.

LLLT, also called photobiomodulation, is a painless, light-based therapy that helps reduce swelling, relieve pain, and promote healing. SWD is a type of deep heat therapy commonly used in physiotherapy to improve circulation and tissue repair.

This study will include 72 patients between 20 and 40 years old who have been diagnosed with a partial ACL tear through MRI. All participants will receive standard physiotherapy exercises and SWD, while half will also receive LLLT.

The study aims to find out if adding LLLT can:

Reduce knee pain

Improve knee muscle strength

Help patients perform daily activities more easily

Each participant will be monitored for 6 weeks, with check-ins at the start, the 3rd week, and the 6th week. Pain levels, muscle strength, and knee function will be measured using reliable assessment tools. The results of this study may help guide better treatment options for people with ACL injuries who want to avoid surgery.

Conditions

  • Anterior Cruciate Ligament (ACL) Tear

Interventions

DEVICE

Low-Level Laser Therapy (LLLT)

Low-Level Laser Therapy (LLLT) will be administered using an 830 nm wavelength and 150 mW power output with 5 W/cm² power density. The laser probe will be applied 2-3 times per week for 6 weeks over the affected knee. Treatment is performed using a direct skin contact method with 3-4 minutes of exposure per point around the knee joint. The goal is to reduce inflammation, enhance collagen synthesis, and support ligament healing in patients with partial anterior cruciate ligament (ACL) tears. This intervention is provided in addition to standard physiotherapy and shortwave diathermy.

BEHAVIORAL

Shortwave therapy

Participants in this group will receive standard physiotherapy exercises combined with shortwave diathermy (SWD), without the application of Low-Level Laser Therapy (LLLT). The exercise protocol includes heel slides, supported partial knee bends, quadriceps sets, and step-ups, performed in 2 sets of 10 repetitions with 3-5 second rest intervals. SWD will be delivered 2-3 times, using a 27.12 MHz frequency for 20-30 minutes per session, targeting pain relief and enhanced soft tissue healing. This group functions as an active comparator to assess the additional therapeutic value of LLLT used in the intervention group.

Sponsors & Collaborators

  • University of Lahore

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-10-15
Primary Completion
2025-06-19
Completion
2025-07-15

Countries

  • Pakistan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07089459 on ClinicalTrials.gov