The debate
A debate on instability at the Royal North Shore Shoulder Symposium, between two teams. Arguing for the Latarjet were Kenneth Cutbush, Greg Hoy and John Trantalis; opposing them were Alex Malone, Mark Ross and Shane Barwood.
What shoulder instability is
Instability means the ball of the shoulder comes out of its socket, either completely, which is a dislocation, or partly, which is a subluxation. Anterior instability, where it comes out forwards, is the most common pattern and usually begins with an injury. A first dislocation commonly tears the labrum, the rim of cartilage that deepens the socket, and in some shoulders it also chips bone from the front rim of the socket or dents the back of the ball. Once those structures are damaged the shoulder can dislocate again with progressively less force. Individual results vary.
What the Latarjet procedure does
The Latarjet procedure transfers the coracoid process as a bone block to the front of the glenoid. It is used for anterior shoulder instability, particularly recurrent dislocations, and it is used where bone has been lost from the front rim of the socket, because in that situation repairing the soft tissues alone may not hold the joint in place.
The alternative is a soft tissue repair, in which the torn labrum and capsule are reattached to the rim of the socket, usually through keyhole portals. That is the smaller operation of the two, and for many shoulders it is sufficient.
Why debate it
The question at issue is where the threshold sits: how much bone loss, and how much demand on the shoulder, justifies a bone block rather than a soft tissue repair. There is genuine disagreement among surgeons about that, which is why the format works. Which operation is appropriate for a particular shoulder is an individual decision made on imaging and examination.
A formal debate is a deliberate teaching device at surgical meetings. Each team is assigned a position and argues it from the published evidence, whether or not every member would take that line in every case, so the audience hears the strongest version of both arguments rather than one surgeon's settled preference. It suits exactly those questions where the evidence does not yet point clearly one way.
Related information
- Our shoulder instability page
- Our anterior instability page
- Our Latarjet with labral repair page
- Our post on the Latarjet talk at the same conference