Shoulder Instability Trial Comparing Arthroscopic Stabilization Benefits Compared With Latarjet Procedure Evaluation

Background:

Shoulder is a highly mobile joint with the most directional range of movement compared to other joints in the body. Thus, the surrounding supporting structures of the shoulder joint compromise on the stability of the joint, in order to accomplish this wide range of motion.

Anterior dislocations, the most common type of shoulder dislocation, are often complicated by instability, and repeated dislocations. Shoulder instability results in pain and negatively impacts quality of life. Several long-term studies have demonstrated a relationship between the repeated dislocations and the risk of arthritis.

Surgical stabilization of the shoulder improves function and may reduce the risk of developing degenerative arthritis. Two procedures are commonly performed in patients with repeated dislocations: a bony transfer procedure (Latarjet) or a soft tissue procedure (Bankart + Remplissage). The Latarjet procedure involves transferring bone to the front of the shoulder. The Bankart + Remplissage procedure involves tightening the soft tissues at the front of the shoulder joint.

Although retrospective clinical studies have suggested a reduced recurrence rate with the Latarjet procedure, there is a higher reported complication rate and potential morbidity associated with the open procedure. Several case series from high-volume surgeons in Europe have suggested the Latarjet repair to be an acceptable and potentially favorable surgical approach for all cases of recurrent anterior shoulder dislocation, even in the primary setting and in the absence of significant glenoid cup bone loss. Retrospective analysis of soft tissue repair in comparison to open coracoid (Latarjet) procedure found at 10-year follow up, redislocation rates were 13% (36) of 271 shoulders with a Bankart repair and 1% (1) of the 93 shoulders with a Latarjet repair.