NCT04347343

Brief Summary

The purpose of this feasibility study is to determine the initial efficacy of early combined Neuromuscular Electrical Stimulation (NMES) and Blood Flow Restriction (BFR) in addition to standard rehabilitation in 15 subjects after Total Knee Arthroplasty (TKA). The second aim is to determine the feasibility and patient perceptions of combined NMES and BFR by assessing: 1) adherence, 2) satisfaction and 3) safety.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 22, 2019

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

April 13, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 15, 2020

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 3, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 3, 2022

Completed
Last Updated

March 7, 2022

Status Verified

February 1, 2022

Enrollment Period

2.2 years

First QC Date

April 13, 2020

Last Update Submit

February 18, 2022

Conditions

Keywords

Blood Flow RestrictionNeuromuscular Electrical StimulationBFRNMESRehabilitation

Outcome Measures

Primary Outcomes (1)

  • Change in Quadriceps Strength From Baseline to 8 Weeks

    Assesses the maximal voluntary isometric contraction strength of the quadriceps muscle using an electromechanical dynamometer.

    Baseline, 4 weeks and 8 weeks after surgery

Secondary Outcomes (9)

  • Change in Quadriceps Activation From Baseline to 8 Weeks

    Baseline, 4 weeks and 8 weeks after surgery

  • Change in Knee Range of Motion (ROM) From Baseline to 8 Weeks

    Baseline, 4 weeks and 8 weeks after surgery

  • Change in Timed Up and Go (TUG) From Baseline to 8 Weeks

    Baseline, 4 weeks and 8 weeks after surgery

  • Change in 30-Second Sit-to-Stand Test (30-STS) From Baseline to 8 Weeks

    Baseline, 4 weeks and 8 weeks after surgery

  • Change in Stair Climbing Test From Baseline to 8 Weeks

    Baseline, 4 weeks and 8 weeks after surgery

  • +4 more secondary outcomes

Study Arms (1)

COMBO

EXPERIMENTAL

Neuromuscular Electrical Stimulation and Blood Flow Restriction (COMBO) in addition to standard postoperative rehabilitation.

Procedure: Standard Rehabilitation + Neuromuscular Electrical Stimulation and Blood Flow Restriction

Interventions

Subjects will begin a standardized protocol on post-op day 2. Outpatient visits will be 2x/wk for weeks 0-4 and then 1x/wk for weeks 5-8. Subjects will utilize NMES on the quadriceps in the home setting 2x/day for the first 3-4 weeks during isometric contractions at their highest tolerated intensity. Total treatment will begin at 10 minutes. At the end of post-op week 2, subjects will be exposed in clinic to BFR on the surgical limb increasing to 80% limb occlusion pressure over weeks 3-4 as tolerated. Initially, BFR and NMES will be performed simultaneously. BFR will then be progressed using active exercises. After completing a safety checklist, subjects will be issued a home BFR unit for use 2x/week (3x total including clinic visit) at which time NMES will be discontinued. BFR exercise intensity will be progressed as tolerated to maintain 20-30% of 1RM.

Also known as: Blood Flow Restriction, Occlusion Training, BFR, Neuromuscular Electrical Stimulation, NMES
COMBO

Eligibility Criteria

Age50 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Scheduled to undergo primary unilateral total knee arthroplasty secondary to end-stage osteoarthritis

You may not qualify if:

  • BMI \> 40 kgm2
  • Current smoker or history of drug abuse
  • Comorbid conditions that substantially limit physical function or would interfere with the participant's ability to successfully complete rehabilitation (e.g. neurologic, vascular, cardiac problems, or ongoing medical treatments)
  • Unstable orthopedic conditions that limit function
  • Uncontrolled diabetes (hemoglobin A1c level \> 8.0)
  • Pregnancy
  • Preoperative ROM less than 10-120 degrees
  • Demand cardiac pacemaker or unstable arrhythmia
  • Prior history of DVT/PE
  • Thrombophilia or other clotting disorders
  • Sickle cell trait/anemia
  • History of peripheral vascular disease
  • Patient report of easy bruising

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Colorado Anschutz Medical Campus

Aurora, Colorado, 80045, United States

Location

Related Publications (18)

  • Mizner RL, Petterson SC, Stevens JE, Vandenborne K, Snyder-Mackler L. Early quadriceps strength loss after total knee arthroplasty. The contributions of muscle atrophy and failure of voluntary muscle activation. J Bone Joint Surg Am. 2005 May;87(5):1047-53. doi: 10.2106/JBJS.D.01992.

    PMID: 15866968BACKGROUND
  • Stevens JE, Mizner RL, Snyder-Mackler L. Quadriceps strength and volitional activation before and after total knee arthroplasty for osteoarthritis. J Orthop Res. 2003 Sep;21(5):775-9. doi: 10.1016/S0736-0266(03)00052-4.

    PMID: 12919862BACKGROUND
  • Bade MJ, Kohrt WM, Stevens-Lapsley JE. Outcomes before and after total knee arthroplasty compared to healthy adults. J Orthop Sports Phys Ther. 2010 Sep;40(9):559-67. doi: 10.2519/jospt.2010.3317.

    PMID: 20710093BACKGROUND
  • Huang CH, Cheng CK, Lee YT, Lee KS. Muscle strength after successful total knee replacement: a 6- to 13-year followup. Clin Orthop Relat Res. 1996 Jul;(328):147-54. doi: 10.1097/00003086-199607000-00023.

    PMID: 8653948BACKGROUND
  • Rantanen T, Guralnik JM, Izmirlian G, Williamson JD, Simonsick EM, Ferrucci L, Fried LP. Association of muscle strength with maximum walking speed in disabled older women. Am J Phys Med Rehabil. 1998 Jul-Aug;77(4):299-305. doi: 10.1097/00002060-199807000-00008.

    PMID: 9715919BACKGROUND
  • Skelton DA, Greig CA, Davies JM, Young A. Strength, power and related functional ability of healthy people aged 65-89 years. Age Ageing. 1994 Sep;23(5):371-7. doi: 10.1093/ageing/23.5.371.

    PMID: 7825481BACKGROUND
  • Moreland JD, Richardson JA, Goldsmith CH, Clase CM. Muscle weakness and falls in older adults: a systematic review and meta-analysis. J Am Geriatr Soc. 2004 Jul;52(7):1121-9. doi: 10.1111/j.1532-5415.2004.52310.x.

    PMID: 15209650BACKGROUND
  • Brown M, Sinacore DR, Host HH. The relationship of strength to function in the older adult. J Gerontol A Biol Sci Med Sci. 1995 Nov;50 Spec No:55-9. doi: 10.1093/gerona/50a.special_issue.55.

    PMID: 7493219BACKGROUND
  • Connelly DM, Vandervoort AA. Effects of detraining on knee extensor strength and functional mobility in a group of elderly women. J Orthop Sports Phys Ther. 1997 Dec;26(6):340-6. doi: 10.2519/jospt.1997.26.6.340.

    PMID: 9402571BACKGROUND
  • Moxley Scarborough D, Krebs DE, Harris BA. Quadriceps muscle strength and dynamic stability in elderly persons. Gait Posture. 1999 Sep;10(1):10-20. doi: 10.1016/s0966-6362(99)00018-1.

    PMID: 10469937BACKGROUND
  • Mizner RL, Petterson SC, Snyder-Mackler L. Quadriceps strength and the time course of functional recovery after total knee arthroplasty. J Orthop Sports Phys Ther. 2005 Jul;35(7):424-36. doi: 10.2519/jospt.2005.35.7.424.

    PMID: 16108583BACKGROUND
  • Stevens-Lapsley JE, Balter JE, Wolfe P, Eckhoff DG, Kohrt WM. Early neuromuscular electrical stimulation to improve quadriceps muscle strength after total knee arthroplasty: a randomized controlled trial. Phys Ther. 2012 Feb;92(2):210-26. doi: 10.2522/ptj.20110124. Epub 2011 Nov 17.

    PMID: 22095207BACKGROUND
  • Yue C, Zhang X, Zhu Y, Jia Y, Wang H, Liu Y. Systematic Review of Three Electrical Stimulation Techniques for Rehabilitation After Total Knee Arthroplasty. J Arthroplasty. 2018 Jul;33(7):2330-2337. doi: 10.1016/j.arth.2018.01.070. Epub 2018 Feb 6.

    PMID: 29530519BACKGROUND
  • Demircioglu DT, Paker N, Erbil E, Bugdayci D, Emre TY. The effect of neuromuscular electrical stimulation on functional status and quality of life after knee arthroplasty: a randomized controlled study. J Phys Ther Sci. 2015 Aug;27(8):2501-6. doi: 10.1589/jpts.27.2501. Epub 2015 Aug 21.

    PMID: 26355656BACKGROUND
  • Hughes L, Paton B, Rosenblatt B, Gissane C, Patterson SD. Blood flow restriction training in clinical musculoskeletal rehabilitation: a systematic review and meta-analysis. Br J Sports Med. 2017 Jul;51(13):1003-1011. doi: 10.1136/bjsports-2016-097071. Epub 2017 Mar 4.

    PMID: 28259850BACKGROUND
  • Tennent DJ, Hylden CM, Johnson AE, Burns TC, Wilken JM, Owens JG. Blood Flow Restriction Training After Knee Arthroscopy: A Randomized Controlled Pilot Study. Clin J Sport Med. 2017 May;27(3):245-252. doi: 10.1097/JSM.0000000000000377.

    PMID: 27749358BACKGROUND
  • Gaunder CL, Hawkinson MP, Tennent DJ, Tubb CC. Occlusion training: pilot study for postoperative lower extremity rehabilitation following primary total knee arthroplasty. US Army Med Dep J. 2017 Jul-Sep;(2-17):39-43.

    PMID: 28853118BACKGROUND
  • Kittelson AJ, Stackhouse SK, Stevens-Lapsley JE. Neuromuscular electrical stimulation after total joint arthroplasty: a critical review of recent controlled studies. Eur J Phys Rehabil Med. 2013 Dec;49(6):909-20. Epub 2013 Nov 28.

    PMID: 24285026BACKGROUND

MeSH Terms

Interventions

Blood Flow Restriction Therapy

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy Modalities

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 13, 2020

First Posted

April 15, 2020

Study Start

November 22, 2019

Primary Completion

February 3, 2022

Study Completion

February 3, 2022

Last Updated

March 7, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations