Tuesday, August 9, 2011

Revision surgery for failed shoulder replacement arthroplasty due to glenoid component failure, Part 9

The glenoid component of a total shoulder may fail because of wear (as shown in "B" below)

or because of loosening with radiolucent zones seen in black on x-ray as shown below.

If the glenoid is worn, but securely fixed, it is removed by first cutting the pegs or keel and removing the glenoid component face allowing access to the bone surrounding the fixation so that the remainder of the component and the cement can be dissected from the glenoid bone.
If the glenoid component is loose, it can be easily pried out of the glenoid bone.

We will discuss the management of the glenoid after component removal in the next post.

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