Treatment of Post Traumatic Knee Osteoarthritis With Extracorporeal Shockwave Therapy
PTOA Knee
2 other identifiers
interventional
70
1 country
1
Brief Summary
This study is recruiting current or former athletes who had ACL reconstruction surgery over a year ago and have been diagnosed with knee osteoarthritis (OA). We are doing the research to investigate the effects of extracorporeal shockwave therapy (ESWT) on pain, function, biomechanics, knee range of motion and strength, inflammation, and joint structure and integrity of the knee.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Apr 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 5, 2024
CompletedFirst Posted
Study publicly available on registry
November 13, 2024
CompletedStudy Start
First participant enrolled
April 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 1, 2026
December 4, 2025
November 1, 2025
1.2 years
November 5, 2024
December 3, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Knee Injury and Osteoarthritis Outcome Score (KOOS)
The KOOS is is a 42-item survey with 5 subscales designed to measure patient health, symptoms, and functionality of the knee. It is scored from 0-100, with higher score correlated with better function.
From baseline to 4-month follow up with intermediate measure at 8 weeks
Secondary Outcomes (19)
Biomarkers of oxidative stress and inflammation
Baseline, at each of the three treatment sessions and at 4 months
Biomechanics
Baseline and 4 months
Knee range of motion
Baseline and 4 months
Quadriceps strength and power
Baseline and 4 months
Quantitative Sensory Testing (Pain Pressure Threshold)
Baseline and 4 months
- +14 more secondary outcomes
Study Arms (2)
Control Group: Sham ESWT Arm
SHAM COMPARATORAll participants will review the exercise program prior to randomization and receiving sham ESWT treatment. The standard operating procedures for ESWT will be followed and will include review of procedure protocol and post-procedure care. Participants will come into the office for three treatment visits separated by seven days +/- 7 days to account for ongoing challenges for respiratory illness and scheduling/traveling conflicts. After collecting baseline variables and after blood is drawn, they will receive sham ESWT administered by trained research personnel, using the OrthoPlus Ultra 100/radial D-Actor and Duolith SD1 T-Top focused shockwave devices. The device will be placed on the same landmarks as that of the ESWT treatment group; however, no shockwaves will be administered; rather, an audio recording that mimics the sound of shockwave will be played. A curtain will obscure participants from viewing their knee and the device to blind them from treatment they are receiving.
Treatment Group: ESWT Arm
EXPERIMENTALAll participants will review the exercise program prior to randomization and receiving treatment. Participants in the ESWT group will receive ESWT. The standard operating procedures for ESWT will be followed and will include review of procedure protocol and post-procedure care. Radial and focused shockwave will be delivered to the knee and lower leg landmarks. The energy settings that will be used are consistent with mild to moderate ESWT which are commonly used in clinical practice to treat knee OA. During the ESWT treatment, a curtain will obscure participants from viewing their leg to blind them from treatment they are receiving. Standard protocol for the ESWT procedure will be followed, including safety assessment and monitoring. Additionally, the patient will be prescribed a post-ESWT exercise protocol that is part of the standard of care, which will be reviewed prior to first treatment and before treatment allocation is decided to minimize risk of bias.
Interventions
All participants will review the exercise program prior to randomization and receiving sham ESWT treatment. The standard operating procedures for ESWT will be followed and will include review of procedure protocol and post-procedure care. Participants will come into the office for three treatment visits separated by seven days +/- 7 day. Sham ESWT will administered by trained research personnel, using the OrthoPlus Ultra 100/radial D-Actor and Duolith SD1 T-Top focused shockwave devices. The device will be placed on the same landmarks as that of the ESWT treatment group; however, no shockwaves will be administered; rather, an audio recording that mimics the sound of shockwave will be played. A curtain will obscure participants from viewing their knee and the device to blind them from treatment they are receiving.
Participants will receive ESWT administered by research personnel, using the OrthoPlus Ultra 100/radial D-Actor and Duolith SD1 T-top focus.Radial pressure waves will be applied using the Extracorporeal Pressure Activation Treatment (EPAT) device. For the anterior knee, patella tendon, vastus lateralis, and vastus medialis, treatment will aim for 1500 strikes at induction dose of 1.5 bars and titrating up by 0.5 bars to 3 bars and this will be performed to participant tolerance to pain, as pain is experienced due to clinical focusing technique which is standard of care in delivering effective treatment. For the calf muscles, the patient will be positioned prone and a similar protocol of starting at 1.5 and titrating up as tolerated to 3 bars. Focused shockwave therapy will be applied for 1000 shocks to four anatomical locations for a total of 4000 shocks. Each site will receive 1000 shocks: medial and lateral tibial plateau and medial and lateral femoral condyle.
Eligibility Criteria
You may qualify if:
- Previous ACL reconstruction using an autograft or allograft in the knee with PTOA
- Minimum of one year following ACL reconstruction surgery
- Between ages of 18 and 55
- No clear contraindication to complete protocol including mechanical symptoms which would limit ability to complete the study
- Score on KOOS for 2 of 4 domains (pain, symptoms, activities of daily living (ADL), quality of life (QOL)) of 85 or lower
- Primary pain is coming from the knee
- Diagnosis of PTOA based on clinical diagnosis and confirmation with radiographic evidence by a medical professional prior to study enrollment. If individuals have suspected OA based on impairments such as pain, they must have a score on KOOS for 2 of 4 domains (pain, symptoms, activities of daily living (ADL), quality of life (QOL)) of 85 or lower to participate in the study.
You may not qualify if:
- Have previously received injections to the knee joint within the past 3 months
- Women who are pregnant or those who are planning to become pregnant. This is due to the fact that pregnancy will reduce participants activity after the treatment and the safety concerns related to shockwave treatment. - Participants with neuropathy affecting sensation to pain
- Participants with a known underlying cardiac disease that could be affected by shockwave therapy
- Neuropathy diagnosis that can affect response to pain
- No active use of oral steroids or anti-inflammatories at the time of enrollment
- Have bilateral ACL injury or reconstruction surgery, or have had ACL revision surgery
- No active malignancy and at least five years in remission
- Previous ESWT treatment using study treatment devices for management of knee osteoarthritis
- Have a pacemaker, bone screws, or any other metal implants that would prohibit participation in an MRI scan or EWST
- Non-English speaking individuals
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Spaulding Cambridge Hospital
Cambridge, Massachusetts, 02138, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Physician
Study Record Dates
First Submitted
November 5, 2024
First Posted
November 13, 2024
Study Start
April 1, 2025
Primary Completion (Estimated)
July 1, 2026
Study Completion (Estimated)
September 1, 2026
Last Updated
December 4, 2025
Record last verified: 2025-11
Data Sharing
- IPD Sharing
- Will not share
Deidentified data will be shared once the study results are published in peer reviewed journal