Operation Korsband

December 23, 2025 updated by: Sofia Ryman Ryman Augustsson, Linnaeus University

Risk Factors for Cruciate Ligament Injuries

This study aims to investigate if a detailed and comprehensive survey can identify, explain and prevent the risk factors for ACL injury.

A a new questionnaire has been developed with questions to young athletes who have suffered an anterior cruciate ligament injury. The questionnaire is more detailed and provide more information about how the anterior cruciate ligament injury occurred compared with the questionnaires currently available in the literature. This careful documentation will provide new knowledge and might be used to identify, explain and prevent risk factors that cause young athletes to suffer an anterior cruciate ligament injury.

Study Overview

Status

Enrolling by invitation

Conditions

Detailed Description

Participants will be prospectively recruited at their first physiotherapist clinical session. On this occasion, participants will be asked to fill in a questionnaire regarding injury situation, game or training, sex, age, sport affiliation, level of sport, other aspects of sport such as participation in several teams and junior versus senior games/training. In addition, questions regarding previous injury will also be documented.

Study Type

Observational

Enrollment (Estimated)

200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Kalmar, Sweden, 391 82
        • Sofia Ryman Augustsson

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years to 55 years (Child, Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Athletes with ACL defined ACL injury.

Description

Inclusion Criteria:

  • Athlete
  • Defined ACL injury

Exclusion Criteria:

  • Non athletes
  • Younger than 12 years

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
ACL injured athletes
Athletes with defined ACL injury.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total work load
Time Frame: Day 1
Total hours, per week, of practice and games.
Day 1

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of teams
Time Frame: Day 1
In team athletes, the number of teams in which the athlete participates.
Day 1
Injury situation 1
Time Frame: Day 1
Question regarding when the injury occurred; training vs game.
Day 1
Injury situation 2
Time Frame: Day 1
Question regarding at what situation the injury occurred (e.g. jump, landing, header duel, defense, attack...)
Day 1
Injury situation 3
Time Frame: Day 1
Question regarding at what time, during a game, the injury occurred; approximate match minute
Day 1
Physical well-being
Time Frame: Day 1
Physical well-being is assessed with a likert scale ranging from 1-5 where '1' represents 'out of shape' while '5' represents that you felt 'in top shape'.
Day 1
Mental wellbeing
Time Frame: Day 1
Mental well-being is assessed with a likert scale ranging from 1-5 where '1' represents 'out of shape' while '5' represents that you felt 'in top shape'.
Day 1
Previous injury
Time Frame: Day 1
Description of previous injury prior to the ACL injury, such as other injuries to lower extremity or concussion.
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Linnaeus University

Collaborators

Kalmar County Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2023

Primary Completion (Estimated)

December 31, 2028

Study Completion (Estimated)

December 31, 2028

Study Registration Dates

First Submitted

February 21, 2023

First Submitted That Met QC Criteria

February 21, 2023

First Posted (Actual)

March 3, 2023

Study Record Updates

Last Update Posted (Actual)

December 30, 2025

Last Update Submitted That Met QC Criteria

December 23, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2022-06554-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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