NCT05152758

Brief Summary

Anterior cruciate ligament (ACL) ruptures are very common knee injuries amongst youth involved in sports and are often treated through ACL reconstruction surgeries. Unfortunately, up to 50% of individuals who undergo ACL reconstruction develop post-traumatic osteoarthritis (PTOA) in their injured knee by 20 years post-reconstruction causing pain, decreasing mobility, and impacting quality of life in young active individuals. Much remains unknown regarding the secondary prevention of PTOA, and more investigation is necessary to better understand its disease progression post-ACL reconstruction and types of conservative interventions that can prevent or delay its onset. Physical activity has improved patient-reported outcomes across many different chronic diseases including knee osteoarthritis (OA), and physical activity prescription has been shown to be an effective way to increase patients' levels of physical activity. It has not yet been heavily investigated in the context of post-ACL reconstruction, and individuals often exhibit decreased physical activity after ACL reconstruction which causes suboptimal cartilage health. Thus, physical activity prescription may improve habitual joint loading, leading to improved cartilage health and patient-reported health outcomes.

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
196

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 1, 2021

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

November 4, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 10, 2021

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 20, 2024

Completed
12 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

May 13, 2025

Status Verified

May 1, 2025

Enrollment Period

3.1 years

First QC Date

November 4, 2021

Last Update Submit

May 7, 2025

Conditions

Keywords

physical activityanterior cruciate ligament reconstructionosteoarthritis

Outcome Measures

Primary Outcomes (4)

  • International Knee Documentation Committee (IKDC)

    This form uses a subjective scale to provide a score from 0 to 100 indicating the patient's overall level of function. The total score is determined by adding individual scores from three categories: symptoms, sports activity, and knee function.

    Baseline

  • International Knee Documentation Committee (IKDC)

    This form uses a subjective scale to provide a score from 0 to 100 indicating the patient's overall level of function. The total score is determined by adding individual scores from three categories: symptoms, sports activity, and knee function.

    2 months

  • International Knee Documentation Committee (IKDC)

    This form uses a subjective scale to provide a score from 0 to 100 indicating the patient's overall level of function. The total score is determined by adding individual scores from three categories: symptoms, sports activity, and knee function.

    6 months

  • International Knee Documentation Committee (IKDC)

    This form uses a subjective scale to provide a score from 0 to 100 indicating the patient's overall level of function. The total score is determined by adding individual scores from three categories: symptoms, sports activity, and knee function.

    12 months

Secondary Outcomes (11)

  • Knee Injury and Osteoarthritis Outcome Score

    Baseline

  • Knee Injury and Osteoarthritis Outcome Score

    2 months

  • Knee Injury and Osteoarthritis Outcome Score

    6 months

  • Knee Injury and Osteoarthritis Outcome Score

    12 months

  • Ultrasonographic Femoral Trochlear Cartilage Imaging

    Baseline

  • +6 more secondary outcomes

Study Arms (2)

Usual Care

NO INTERVENTION

Patients will receive the usual care.

Physical Activity Prescription (PARx)

EXPERIMENTAL

Patients will be prescribed technology-based physical activity programming.

Device: PARx

Interventions

PARxDEVICE

Prescription Physical Activity Programming Application

Physical Activity Prescription (PARx)

Eligibility Criteria

Age21 Years - 32 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Subjects following up for 7-year visits as part of the Standard ACL Reconstruction vs ACL + Lateral Extra-Articular Tenodesis Study (STAbiLiTY)

You may not qualify if:

  • Unable/unwilling to follow up for the study period
  • Does not have access to the internet and/or smartphone
  • Cannot communicate in English
  • Unstable medical conditions that would preclude engagement in prescribed physical activity
  • Scheduled for second surgery over study period

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fowler Kennedy Sport Medicine Clinic

London, Ontario, N6A 3K7, Canada

Location

Related Publications (6)

  • Cinque ME, Dornan GJ, Chahla J, Moatshe G, LaPrade RF. High Rates of Osteoarthritis Develop After Anterior Cruciate Ligament Surgery: An Analysis of 4108 Patients. Am J Sports Med. 2018 Jul;46(8):2011-2019. doi: 10.1177/0363546517730072. Epub 2017 Oct 6.

    PMID: 28982255BACKGROUND
  • Ravalli S, Castrogiovanni P, Musumeci G. Exercise as medicine to be prescribed in osteoarthritis. World J Orthop. 2019 Jul 18;10(7):262-267. doi: 10.5312/wjo.v10.i7.262. eCollection 2019 Jul 18.

    PMID: 31363456BACKGROUND
  • Evans J, Nielson JL. Anterior Cruciate Ligament Knee Injuries. 2021 Feb 19. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. PMID: 29763023.

    BACKGROUND
  • Kraus VB, Sprow K, Powell KE, Buchner D, Bloodgood B, Piercy K, George SM, Kraus WE; 2018 PHYSICAL ACTIVITY GUIDELINES ADVISORY COMMITTEE*. Effects of Physical Activity in Knee and Hip Osteoarthritis: A Systematic Umbrella Review. Med Sci Sports Exerc. 2019 Jun;51(6):1324-1339. doi: 10.1249/MSS.0000000000001944.

    PMID: 31095089BACKGROUND
  • Maly MR, Marriott KA, Chopp-Hurley JN. Osteoarthritis year in review 2019: rehabilitation and outcomes. Osteoarthritis Cartilage. 2020 Mar;28(3):249-266. doi: 10.1016/j.joca.2019.11.008. Epub 2019 Dec 23.

    PMID: 31877379BACKGROUND
  • Pedersen BK, Saltin B. Exercise as medicine - evidence for prescribing exercise as therapy in 26 different chronic diseases. Scand J Med Sci Sports. 2015 Dec;25 Suppl 3:1-72. doi: 10.1111/sms.12581.

    PMID: 26606383BACKGROUND

MeSH Terms

Conditions

Motor ActivityOsteoarthritis

Condition Hierarchy (Ancestors)

BehaviorArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Jane Thornton, MD PhD

    Western University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This trial will randomize up to 196 ACL-reconstruction patients to receive either the standard of care or a physical activity prescription (PARx) at 7 years post-reconstruction in a 1:1 ratio.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 4, 2021

First Posted

December 10, 2021

Study Start

November 1, 2021

Primary Completion

December 20, 2024

Study Completion

December 1, 2025

Last Updated

May 13, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations