Scapular spine load-bearing strut in custom-made reverse shoulder arthroplasty - clinical and radiological follow-up of an index case

Abstract

Reverse shoulder arthroplasty allows surgeons to effectively treat complex primary and salvage cases that were previously difficult to manage. Revision shoulder arthroplasty provides a unique challenging environment to both surgeon and patient alike, with the variability of bone stock in the shoulder girdle offering unique tests to existing surgical methods and techniques. Following severe glenoid erosion, custom-made implants have a role in restoring optimal anatomy for the shoulder arthroplasty to be effective. The case described illustrates the challenges of reconstructing a glenoid with significant bone loss. Currently, there is no evidence concerning the outcomes of specific scapular spine strut supports in custom-made glenoid implants. The authors highlight an innovative design for the custom glenoid baseplate with the addition of a strut which allows for supplementary load-bearing through the scapular spine. Implant stability, as well as the satisfactory medium-term clinical and radiological outcomes of such a construct, are also demonstrated.