Abstract
After 38 years of unchallenged reign of cemented full polyethylene glenoid implants, the main problem of anatomical shoulder arthroplasty is still glenoid loosening, also the main cause of failure. A certain concern regarding uncemented metal back components in total anatomical shoulder arthroplasty has developed, due to problems evoked in the literature. This work is a comprehensive bibliographical review of the different clinical and biomechanical studies of noncemented glenoid implants. Those publications often showed a high rate of failure of uncemented glenoid implants, but their arguments appeared often theoretical or based on old and/or nonadapted devices. In conclusion, the authors emphasise that research on new designs of metal back components needs to go on.
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