2021 AOSSM-AANA Combined Annual Meeting Recordings-Failure of Posterior Capsulolabral Repair is Correlated with Percent of Glenoid Bone Loss

Failure of Posterior Capsulolabral Repair is Correlated with Percent of Glenoid Bone Loss

Video Transcription

Video Summary

The video has a researcher presenting their study on posterior shoulder instability. They discuss the common pathologic mechanism of cumulative microtrauma and the risk factors associated with this condition, such as increased retroversion and decreased glenoid bone width. The study aimed to evaluate advanced MRI measures in patients who underwent posterior shoulder capsular labral repair and hypothesized that failed surgical repair would be associated with decreased glenoid bone width and greater percent bone loss. The researchers found that there was indeed a narrow glenoid bone width and higher percentage of glenoid bone loss in the failed surgical repair group. Linear regression analysis revealed that a 25 times higher failure rate was seen with 15% bone loss. The study highlights the importance of posterior glenoid bone loss and the need for accurate MRI assessments.

Asset Caption

Justin Arner, MD

Keywords

posterior shoulder instability

cumulative microtrauma

retroversion

glenoid bone width

MRI assessments