Latarjet Procedure for Bankart Lesion Injury
Biomechanics studies have been invaluable for providing physicians at Mayo Clinic with data to help them optimize their techniques. A first-of-its-kind study was recently completed to assess the ability of the Latarjet procedure to effectively repair a Bankart lesion injury of the shoulder, an injury of the glenoid labrum caused by repeated shoulder dislocation.
As there are multiple options for suture anchor placement, a study was designed to determine placement effect on shoulder stability and also the effect of creating a "bumper" during repair of the Bankart lesion.
To quantify and compare joint stability between repair techniques, a custom-designed test device was fabricated to allow a fixed load to be applied across a cadaveric joint, normal to the glenoid surface. The humeral head was then translated anteriorly relative to the glenoid while the translational forces were recorded. Higher peak forces indicated a more stable joint repair. Testing was completed for several surgically relevant conditions.
The results indicated that a Bankart repair using suture anchors at the glenoid rim and surface restored glenohumeral stability to that of the intact condition. Introduction of a bumper had little effect on the stability.
This study allowed a better understanding of the procedure and supported use of a technique that not only was demonstrated to maximize stability but also is believed to have less of a detrimental effect on range of motion, making it a highly desirable option.
For more information, see: The Stabilizing Mechanism of the Latarjet Procedure (PDF).