Comparison of Methods in Post Operative Knee Arthroscopy Rehabilitation

NCT ID: NCT05735236

Last Updated: 2025-05-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

78 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-08

Study Completion Date

2025-11-08

Brief Summary

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The aim of this study is to investigate the efficacy of blood flow restriction (BFR) therapy in post-operative rehabilitation following knee arthroscopy for primary ACL reconstruction. BFR has been shown to effect time to return to activity and strength postoperatively. This study aims to analyze the effects of BFR therapy in patients who underwent primary ACL reconstruction surgery compared to controls. Participants will be randomized into either a treatment (BFR Cuff) or control (no BFR cuff) group. All participants will follow standard of care (SOC) physical therapy protocol for 12 weeks after surgery according to their treatment group. Strength and patient outcome measures will be recorded throughout the 2 year study period.

Detailed Description

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The aim of this study is to investigate the efficacy of blood flow restriction (BFR) therapy in post operative rehabilitation following knee arthroscopy. The current standard of care and post-operative pain levels can limit patients from applying load necessary to increase muscle size and strength development due to partial weight baring after surgery. We hypothesize that immediate and consistent use of BFR augmenting our current standard post operative knee arthroscopy rehabilitation protocol will result in greater improvement in strength and quicker achievement of phase-based rehabilitation goals. We hypothesize that these objective improvements in strength will correlate with clinically meaningful improvement in Tegner activity scale, International Knee Documentation Committee (IKDC), return to sport, Lower Extremity Functional Scale (LEFS), pain and resiliency (patient reported outcome, PRO) scores indicative of greater functional recovery compared to our standard rehabilitation protocol alone.

Conditions

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ACL Tear

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Control

Participants undergo standard post-operative physical therapy as prescribed by their surgeon.

Group Type NO_INTERVENTION

No interventions assigned to this group

BFR Cuff

Patients undergo standard post-operative physical therapy as prescribed by their surgeon with the addition of a Blood Flow Restriction (BFR) cuff that is used during their exercises.

Group Type ACTIVE_COMPARATOR

BFR Cuff

Intervention Type DEVICE

The BFR cuff will be applied to the proximal thigh of the surgical leg while the patient completes specified physical therapy exercises.80% occlusion pressure will be determined by PT's in clinic through the use of a Delphi unit. Subjects will then be able to use the Saga Fitness app to adjust this pressure if it differs from the automatic calibrated pressure.

Interventions

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BFR Cuff

The BFR cuff will be applied to the proximal thigh of the surgical leg while the patient completes specified physical therapy exercises.80% occlusion pressure will be determined by PT's in clinic through the use of a Delphi unit. Subjects will then be able to use the Saga Fitness app to adjust this pressure if it differs from the automatic calibrated pressure.

Intervention Type DEVICE

Other Intervention Names

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Blood Flow Restriction Device Blood Flow Restriction Cuff

Eligibility Criteria

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Inclusion Criteria

* Patients undergoing primary knee arthroscopy for ACL reconstruction without meniscus repair
* Completing initial 12 weeks of physical therapy at the Steadman Hawkins Clinic in Denver
* Patients with access to smartphone device

Exclusion Criteria

* Bilateral knee surgeries to be performed within 12 weeks of each other
* Patients received meniscus repairs, chondral lesion repair/transplants,
* Prior surgery on the same knee
* Anyone who meets the following contraindications for BFR therapy:

* Deep Vein Thrombosis (DVT)

* Pulmonary Embolism
* Hemorrhagic/Thrombolytic Stroke
* Clotting Disorders
* Hemophilia or taking blood thinners
* Pregnant or up to 6 months post-partum
* Untreated Hypertension
* Untreated Hypotension
* Rhabdomyolysis or recent traumatic injury


3\. If at any point in the study a subject develops one of the above contraindications, they will be removed from the study.

4\. If a subject becomes pregnant while participating in the intervention portion of the study, they will be removed.
Minimum Eligible Age

16 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Colorado, Denver

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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James Genuario, MD

Role: PRINCIPAL_INVESTIGATOR

University of Colorado, Denver

Locations

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UCHealth Steadman Hawkins Clinic

Centennial, Colorado, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Lauren Heylmun, BS

Role: CONTACT

720-516-9823

Facility Contacts

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Lauren M Heylmun, BS

Role: primary

720-516-9823

References

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Bowman EN, Elshaar R, Milligan H, Jue G, Mohr K, Brown P, Watanabe DM, Limpisvasti O. Proximal, Distal, and Contralateral Effects of Blood Flow Restriction Training on the Lower Extremities: A Randomized Controlled Trial. Sports Health. 2019 Mar/Apr;11(2):149-156. doi: 10.1177/1941738118821929. Epub 2019 Jan 14.

Reference Type BACKGROUND
PMID: 30638439 (View on PubMed)

Tabata S, Suzuki Y, Azuma K, Matsumoto H. Rhabdomyolysis After Performing Blood Flow Restriction Training: A Case Report. J Strength Cond Res. 2016 Jul;30(7):2064-8. doi: 10.1519/JSC.0000000000001295.

Reference Type RESULT
PMID: 26677831 (View on PubMed)

Slysz J, Stultz J, Burr JF. The efficacy of blood flow restricted exercise: A systematic review & meta-analysis. J Sci Med Sport. 2016 Aug;19(8):669-75. doi: 10.1016/j.jsams.2015.09.005. Epub 2015 Sep 28.

Reference Type RESULT
PMID: 26463594 (View on PubMed)

Yasuda T, Fukumura K, Fukuda T, Uchida Y, Iida H, Meguro M, Sato Y, Yamasoba T, Nakajima T. Muscle size and arterial stiffness after blood flow-restricted low-intensity resistance training in older adults. Scand J Med Sci Sports. 2014 Oct;24(5):799-806. doi: 10.1111/sms.12087. Epub 2013 Jun 3.

Reference Type RESULT
PMID: 23730848 (View on PubMed)

Charles D, White R, Reyes C, Palmer D. A SYSTEMATIC REVIEW OF THE EFFECTS OF BLOOD FLOW RESTRICTION TRAINING ON QUADRICEPS MUSCLE ATROPHY AND CIRCUMFERENCE POST ACL RECONSTRUCTION. Int J Sports Phys Ther. 2020 Dec;15(6):882-891. doi: 10.26603/ijspt20200882.

Reference Type RESULT
PMID: 33344004 (View on PubMed)

Hung M, Saltzman CL, Kendall R, Bounsanga J, Voss MW, Lawrence B, Spiker R, Brodke D. What Are the MCIDs for PROMIS, NDI, and ODI Instruments Among Patients With Spinal Conditions? Clin Orthop Relat Res. 2018 Oct;476(10):2027-2036. doi: 10.1097/CORR.0000000000000419.

Reference Type RESULT
PMID: 30179950 (View on PubMed)

Grzybowski JS, Malloy P, Stegemann C, Bush-Joseph C, Harris JD, Nho SJ. Rehabilitation Following Hip Arthroscopy - A Systematic Review. Front Surg. 2015 May 26;2:21. doi: 10.3389/fsurg.2015.00021. eCollection 2015.

Reference Type RESULT
PMID: 26075208 (View on PubMed)

Chahal J, Van Thiel GS, Mather RC 3rd, Lee S, Song SH, Davis AM, Salata M, Nho SJ. The Patient Acceptable Symptomatic State for the Modified Harris Hip Score and Hip Outcome Score Among Patients Undergoing Surgical Treatment for Femoroacetabular Impingement. Am J Sports Med. 2015 Aug;43(8):1844-9. doi: 10.1177/0363546515587739. Epub 2015 Jun 15.

Reference Type RESULT
PMID: 26078452 (View on PubMed)

Bronner S, Chodock E, Urbano IER, Smith T. Psychometric Properties of the Dance Functional Outcome Survey (DFOS): Reliability, Validity, and Responsiveness. J Orthop Sports Phys Ther. 2019 Feb;49(2):64-79. doi: 10.2519/jospt.2019.8247. Epub 2018 Jul 27.

Reference Type RESULT
PMID: 30053790 (View on PubMed)

Enseki K, Harris-Hayes M, White DM, Cibulka MT, Woehrle J, Fagerson TL, Clohisy JC; Orthopaedic Section of the American Physical Therapy Association. Nonarthritic hip joint pain. J Orthop Sports Phys Ther. 2014 Jun;44(6):A1-32. doi: 10.2519/jospt.2014.0302.

Reference Type RESULT
PMID: 24881906 (View on PubMed)

Luebbers PE, Witte EV, Oshel JQ, Butler MS. Effects of Practical Blood Flow Restriction Training on Adolescent Lower-Body Strength. J Strength Cond Res. 2019 Oct;33(10):2674-2683. doi: 10.1519/JSC.0000000000002302.

Reference Type RESULT
PMID: 29084094 (View on PubMed)

Lu Y, Patel BH, Kym C, Nwachukwu BU, Beletksy A, Forsythe B, Chahla J. Perioperative Blood Flow Restriction Rehabilitation in Patients Undergoing ACL Reconstruction: A Systematic Review. Orthop J Sports Med. 2020 Mar 25;8(3):2325967120906822. doi: 10.1177/2325967120906822. eCollection 2020 Mar.

Reference Type RESULT
PMID: 32232065 (View on PubMed)

Weatherholt AM, Vanwye WR, Lohmann J, Owens JG. The Effect of Cuff Width for Determining Limb Occlusion Pressure: A Comparison of Blood Flow Restriction Devices. Int J Exerc Sci. 2019 Jan 1;12(3):136-143. doi: 10.70252/RWVU7100. eCollection 2019.

Reference Type RESULT
PMID: 30761200 (View on PubMed)

Ingram JG, Fields SK, Yard EE, Comstock RD. Epidemiology of knee injuries among boys and girls in US high school athletics. Am J Sports Med. 2008 Jun;36(6):1116-22. doi: 10.1177/0363546508314400. Epub 2008 Mar 28.

Reference Type RESULT
PMID: 18375784 (View on PubMed)

Powell JW, Barber-Foss KD. Injury patterns in selected high school sports: a review of the 1995-1997 seasons. J Athl Train. 1999 Jul;34(3):277-84.

Reference Type RESULT
PMID: 16558577 (View on PubMed)

Joseph AM, Collins CL, Henke NM, Yard EE, Fields SK, Comstock RD. A multisport epidemiologic comparison of anterior cruciate ligament injuries in high school athletics. J Athl Train. 2013 Nov-Dec;48(6):810-7. doi: 10.4085/1062-6050-48.6.03. Epub 2013 Oct 23.

Reference Type RESULT
PMID: 24143905 (View on PubMed)

Prue J, Roman DP, Giampetruzzi NG, Fredericks A, Lolic A, Crepeau A, Pace JL, Weaver AP. Side Effects and Patient Tolerance with the Use of Blood Flow Restriction Training after ACL Reconstruction in Adolescents: A Pilot Study. Int J Sports Phys Ther. 2022 Apr 2;17(3):347-354. doi: 10.26603/001c.32479. eCollection 2022.

Reference Type RESULT
PMID: 35391873 (View on PubMed)

Provided Documents

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Document Type: Informed Consent Form

View Document

Other Identifiers

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22-1052

Identifier Type: -

Identifier Source: org_study_id

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