A patient had a reverse total shoulder as shown below:
At six weeks the shoulder was functioning well and had this x-ray appearance:
Eight months after surgery, while doing some upper extremity exercises, the patient noted pain over the lateral shoulder and clicking on motion. x-rays at that time demonstrated dissociation of the glenosphere from the baseplate:
Comment: The key x-ray view is the one taken at 6 weeks, showing that glenoid bone above the base plate prevented complete seating of the glenosphere allowing it to dissociate as the subsequent films demonstrate.
We have previously discussed the issue of glenosphere dissociation as shown in this link, emphasizing that bone and soft tissue can prevent compete seating of the glenosphere.
Our current reverse total shoulder technique is shown in this link.
Seems as though glenosphere dissociation is being describe more commonly:
Glenosphere disengagement in a reverse total shoulder arthroplasty with a non-Morse taper design.
Glenosphere disengagement: a potentially serious default in reverse shoulder surgery.
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Use the "Search" box to the right to find other topics of interest to you.
You may be interested in some of our most visited web pages including:shoulder arthritis, total shoulder, ream and run, reverse total shoulder, CTA arthroplasty, and rotator cuff surgery as well as the 'ream and run essentials'.
See from which cities our patients come.
See the countries from which our readers come on this post.
