Recently we had the opportunity to revise a total shoulder because of a loose glenoid component presenting 2.5 years after implantation. As seen in the x-rays below, the arthroplasty had been performed using a short 'canal sparing' humeral component.
The available instrumentation did not enable the removal of the well-fixed humeral component. Thus we created a 'springboard notch' in the component using a pinecone bur. This notch enabled removal of the component by impacting upwards in the notch with a bone tamp.
After removal of the loose glenoid component, a standard stem was fixed securely using impaction allografting. The insertion of the standard stem was accomplished without needing to remove any additional bone.
See also these related posts:
Short stem humeral prosthesis: the risk of stress shielding. Is shorter better?
To see the topics covered in this Blog, click here
Use the "Search" box to the right to find other topics of interest to you.