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TerminatedNCT04185532Updated Dec 20, 2024

Treatment of Acute ACL Injuries in Young Patients Using a Rebound ACL Brace

An interventional study of Rebound ACL brace and physioterapy and Physioterapy in Anterior Cruciate Ligament Injuries, Anterior Cruciate Ligament Rupture and Anterior Cruciate Ligament Tear, sponsored by Frida Hansson, MD. Terminated at 1 site in Sweden. Open to participants aged Up to 17 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-20.

Sponsored by Frida Hansson, MD · Not applicable, Interventional, and Treatment

Why this study was terminated
The study was stopped due to problems with the brace in the majority of the patients in the treatment group; such as skin lesions, non-fitting brace and severe itching. Furthermore, half of the patients went on to ACLR.
Phase
Not applicable
Study type
Interventional
Enrollment
44
Allocation
Randomized
Ages
Up to 17 Years
Sex
All
01

Study summary

This study evaluates the use of a brace in acute anterior cruciate ligament (ACL) injuries in children and adolescents. Half of the participants will receive a so called rebound ACL brace together with a standardized rehab program supervised by a physiotherapist, while the other half will receive only the standardized rehab program supervised by a physiotherapist

Read the detailed description

A well known treatment of posterior cruciate ligament injuries in the acute phase is a brace which pushes the tibia anteriorly, and the result of the treatment is often successful with healing of the ligament. Similarly, in anterior cruciate ligament injuries, it is suggested that a rebound ACL brace which pushes the tibia posteriorly can facilitate healing of the ACL. It does not have as successful treatment results as the PCL brace, but the type and location of the ACL injury has in previous studies not been well defined. We will, after having described the localisation and type of ACL injury treat the intervention group with the rebound ACL brace and a standardized rehab program and the control group with standardized rehab program alone.

The randomization is made blockwise of 4, to treatment A= Brace+physiotherapy or B=Physioterapy. The groups are stratified for gender and age (\<=14 years and >14 years)

02

Conditions studied

  • Anterior Cruciate Ligament Injuries
  • Anterior Cruciate Ligament Rupture
  • Anterior Cruciate Ligament Tear

Keywords

  • ACL
  • children and adolescents
  • rebound ACL brace
03

In context

Wounds and Injuries

5,056 studies on the registry are indexed under Wounds and Injuries; 861 are open to participants now.

This study's enrollment of 44 is below the median of 52 across 3,239 interventional studies indexed under Wounds and Injuries.

Browse Wounds and Injuries studies →

Lead sponsor

This is the only study on the registry with Frida Hansson, MD as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 17 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • No previous significant knee injury
  • Trauma followed by hemarthrosis and clinical suspicion of an acute ACL injury
  • Acute ACL rupture seen on MRI

Exclusion criteria

Exclusion Criteria:

  • Previous ipsilateral knee surgery
  • Associated injuries which require early surgical intervention
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
44 participants (actual)

Study arms

  • Experimental
    Rebound ACL brace and physiotherapy

    The intervention will be the use of rebound ACL brace for 9 weeks, which initially is locked followed by a gradually increased range of motion. A standardized rehab protocol is applied.

    Other: Rebound ACL brace and physioterapy

  • Active comparator
    Physiotherapy

    A standardized rehab protocol comparable to the experimental group but with no brace

    Other: Physioterapy

Interventions

  • OtherRebound ACL brace and physioterapy

    Usage of rebound ACL brace and physioterapy supervised by physioterapist

  • OtherPhysioterapy

    Physioterapy supervised by physioterapist

06

What researchers measure

Primary outcomes

  1. Objective knee function

    laxity measurement (KT-1000)

    Time frame: 6 months

  2. Objective knee function

    laxity measurement (KT-1000)

    Time frame: 12 months

  3. Objective knee function

    laxity measurement (KT-1000)

    Time frame: 24 months

  4. objective knee function

    muscle strength (measured by Biodex)

    Time frame: 6 months

  5. objective knee function

    muscle strength (measured by Biodex)

    Time frame: 12 months

  6. objective knee function

    muscle strength (measured by Biodex)

    Time frame: 24 months

  7. objective knee function

    jump tests

    Time frame: 6 months

  8. objective knee function

    jump tests

    Time frame: 12 months

  9. objective knee function

    jump tests

    Time frame: 24 months

Secondary outcomes

  1. Subjective knee function

    EQ-5D-Y

    Time frame: 6, 12 and 24 months

  2. Subjective knee function

    The Knee injury and Osteoarthritis Outcome Score for children, KOOS child. 5 subscales, where each subscale's points are calculated to a scale from 0-100; zero representing extreme knee problems and 100 representing no knee problems

    Time frame: 6, 12 and 24 months

  3. Activity level

    Presented as Tegner activity scale. The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability because of knee problems and 10 represents national or international level soccer.

    Time frame: 6, 12 and 24 months

07

Study locations

1 site
  • Capio Artro Clinic
    Stockholm, Sverige 113 41, Sweden
08

References and documents

Publications

  • Jacobi M, Reischl N, Ronn K, Magnusson RA, Gautier E, Jakob RP. Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace. Adv Orthop. 2016;2016:1609067. doi: 10.1155/2016/1609067. Epub 2016 Dec 7. PubMed 28053787 ↗

Individual participant data

Plan to share: Yes — Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices).

Supporting information: Study protocol, Sap, Icf, Analytic code

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 20, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04185532
Lead sponsor
Frida Hansson, MD
Responsible party
Frida Hansson, MD (MD. Principal Investigator. PhD student, Karolinska Institutet) — Sponsor-investigator
First posted
Dec 4, 2019
Start date
Jan 8, 2020
Primary completion
Dec 17, 2024
Completion
Dec 17, 2024
Last update
Dec 20, 2024

Study contacts

Frida Hansson, MD, PhD stud
principal investigator · Karolinska Institutet

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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