Knee Alignment Contributions to Anterior Cruciate Ligament (ACL) Injury

Completed

• Conditions: Knee Injuries

• Registration Number: NCT00855023
• Lead Sponsor: The Orthopaedic Center, Maryland

Brief Summary

This study evaluates the the anatomic factors of the knee that may predispose to ACL injury.

Detailed Description

Despite intense study of anterior cruciate ligament injury during the past three decades, the mechanisms of this injury have not been clearly defined. A recent study by the Principle Investigator identified differences in leg alignment when a single leg landing during a sports activity resulted in a torn ACL and when it did not (provocative versus control alignment, respectively).

The purpose of the study is to quantify the tibiofemoral alignment in the lateral compartment of the knee in the provocative landing position and the control landing position. in order to elucidate possible mechanisms of ACL injury Material and Methods: 25 normal controls will be recruited from the greater Washington DC population. Magnetic resonance images in the sagittal plane will be acquired for a single leg of each subject. These images will cover the lateral compartment of the knee and will be acquired with the leg in three positions, one that emulates the injury position, one that exagerrates the injury position, and one that emulates the control landing position. Statistical analysis of the measurements between the provocative, exagerrated provocative, and control positions will then be performed.

These insights could then be applied to improving training focused on reducing the incidences of ACL rupture; improving bracing designs to help athletes most at risk of ACL rupture or those recovering from ACL injury/surgery; and improving ACL replacement surgeries.

Study Timeline

• Study Start: 2007-11
• Status Verified: 2009-03
• Study First Submitted: 2009-03-02
• Study First Submitted QC: 2009-03-02
• Study First Posted: 2009-03-03
• Primary Completion: 2010-10
• Study Completion: 2010-10
• Last Update Submitted: 2020-03-16
• Last Update Posted: 2020-03-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 25

Inclusion Criteria

• Healthy controls
• Ages 18-45 years old

Exclusion Criteria

• Previous knee injury or surgery
• Metal implants in body

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Measurement of anatomy of knee	1 hour

Trial Locations

Locations (1)

Open MRI of Washington; 🇺🇸 Rockville, Maryland, United States