Presentation
Previous trauma from falling not radiologically studied (four months ago).
Patient Data
Age: 65
Gender: Female
From the case:
Reverse shoulder prosthesis - anterior dislocation
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Anterior dislocation of the humeral component while the glenoid component is in place.
From the case:
Reverse shoulder prosthesis - anterior dislocation
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In addition to the dislocation, there is a large periprosthetic collection with partially calcified walls, close to which, medially, a small bone fragment can be recognized due to fracture of the inferior edge of the glenoid.
Case Discussion
Several factors are responsible for dislocation or instability, such as lack of tension in the soft tissue, mechanical impingement, mismatch glenosphere-humeral cup and improper version of the prosthesis.
Proper soft tissue tension is essential for the stability of reverse shoulder prostheses.
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