Effects of Vibration on Knee Health After ACL Surgery
Official title: The Effects of Vibratory Stimuli on Joint Health and Post-traumatic Osteoarthritis Risk Following Anterior Cruciate Ligament Injury
Run by University of North Carolina, Chapel Hill · NCT04875052 · Data updated 2026-11-12
This study is testing if adding vibration therapy to regular rehab can help people recovering from ACL surgery have better knee health and lower the chance of future injuries.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 16 Years to 35 Years |
| Sex | All |
| Enrollment | 114 (estimated) |
| Sponsor | University of North Carolina, Chapel Hill Academic / other |
| Locations | 2 sites (Chapel Hill, North Carolina and 1 other locations) |
| Status | Recruiting |
| Started | January 11, 2021 |
| Main results expected | August 2026 |
| Study ends | August 2026 |
| Registry record updated | May 31, 2025 |
| Trial ID | NCT04875052 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals aged 16 to 35 who have undergone unilateral primary ACL reconstruction with a specific type of graft.
✕Probably not a fit
Patients with a history of prior ACL injuries, knee surgeries, or certain contraindications will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial evaluates the impact of vibration therapy on post-traumatic knee osteoarthritis risk and secondary ACL injury in individuals recovering from ACL reconstruction surgery. Participants will be randomly assigned to receive standard rehabilitation, standard rehabilitation with whole body vibration (WBV), or local muscle vibration (LMV). The study aims to assess various outcomes including quadriceps muscle function, gait biomechanics, patient-reported outcomes, and MRI indicators of knee joint health. The hypothesis is that vibration therapy will enhance recovery and reduce the risk of complications compared to standard rehabilitation alone.
Why it matters
Potential benefit: If successful, this study could lead to improved rehabilitation protocols that reduce the risk of knee osteoarthritis and secondary injuries in ACL reconstruction patients.
How similar studies have gone: While the use of vibration therapy in rehabilitation is promising, this specific approach to addressing post-traumatic knee osteoarthritis and ACL injury risk is novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 16 to 35 years * Unilateral, primary ACLR with bone-patellar tendon-bone autograft Exclusion Criteria: * History of prior ACL injury or revision ACLR * History of prior knee surgery * Requirement of multiple ligament surgery at time of ACLR * Concomitant injuries or surgical procedures at the time of ACLR that would delay early post-operative weight bearing based on surgeon recommendations (e.g. lower extremity fracture, intra-articular fracture, microfracture procedure) * Removal of more than 1/3 of the medial or lateral meniscus at the time of ACLR * Articular cartilage damage greater than 3A on the International Cartilage Repair Society Criteria at the time of ACLR * History of musculoskeletal injury to either leg in the 3 months prior to participation other than primary ACL injury * Prior diagnosis of radiographic OA in any joint of the lower extremity * History of neurological disorder (e.g. stroke, multiple sclerosis, etc.) * Contraindications for MRI (e.g. extreme claustrophobia, cardiac pacemaker, cochlear implant, metal foreign bodies, aneurism clip, etc.) * Pregnant or planning to become pregnant
Where it's running
-
MOTION Science Institute
Chapel Hill, North Carolina, United States Recruiting -
Womack Army Medical Center
Chapel Hill, North Carolina, United States Not yet recruiting
Study contacts
- Principal investigator: Troy Blackburn, PhD — University of North Carolina, Chapel Hill
- Study coordinator: Troy Blackburn, PhD
- Email: troyb@email.unc.edu
- Phone: 919-843-2021
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Predicting knee cartilage wear and pain after early osteoarthritis or a recent ACL injury
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Using metformin to reduce knee pain after ACL surgery
This study is testing if metformin can help reduce knee pain and prevent arthritis in people recovering from ACL surgery.
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Gait rehabilitation using biofeedback for knee injuries
This study is testing if real-time feedback on walking can help younger people who had knee surgery recover better and avoid early signs of osteoarthritis.
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Using blood flow restriction training to help adolescents recover after ACL surgery
This study is testing if combining blood flow restriction training with regular rehab helps teenagers recover better and faster after ACL surgery.
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Using PRP injections to improve recovery after ACL surgery
This study tests if PRP injections can help people recover better and reduce inflammation after ACL surgery compared to a placebo.
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Using Vitamin D to Boost Quadricep Strength After ACL Injury
This study is testing if taking Vitamin D3 can help young adults recovering from ACL surgery build stronger thigh muscles.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.