It seems that every month comes with new innovations in shoulder arthroplasty, each of which brings with it new learning curves and costs. In most cases we do not have evidence supporting the benefit of these new technologies to the patients receiving them.
We thought this might be a good time to review some of these innovations with the plan of reviewing them in a year to see if there were data on their clinical superiority over the simpler approaches in common use.
Patient specific instrumentation
Three dimensional models
Posteriorly augmented glenoid components
Short humeral stems
Variable neck shaft angle prostheses
Metal back glenoid components
Bone ingrowth humeral stems
Until evidence of clinical superiority becomes available we will continue to use the approaches that have become standard in our pracice:
Total shoulder athroplasty using an all polyethlene glenoid component with an impaction grafted stemmed humeral component.
Reverse total shoulder athroplasty using a securely screw fixed offset glenosphere with an impaction grafted stemmed humeral component.
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