Editorial Commentary: Glenoid Track Instability Management Score or Instability Severity Index Score-Will This Decrease Latarjet Abuse?

Abstract

Open treatment of anterior shoulder instability using a coracoid transfer, such as the Latarjet procedure, is associated with low recurrence rates but with significant complications such as nerve injury, arthrosis, and graft osteolysis. However, an arthroscopic Bankart procedure, although less invasive and with a low complication rate, has the possibility of a higher recurrent instability rate. Scoring systems such as the Instability Severity Index Score, created to select patients for an arthroscopic Bankart procedure or coracoid transfer, have varying levels of success. Often, the scoring system selects a relatively high percentage of patients for the coracoid transfer, possibly undermining its widespread adoption. The relation between glenoid and humeral bone loss has produced the concept of "on-track" and "off-track," which impacts recurrent instability rates. Merging the on-track and off-track concept with the new Glenoid Track Instability Management Score may produce an algorithm that more accurately assesses the need for the Latarjet procedure or arthroscopic stabilization.