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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_29 | Pages 53 - 53
1 Aug 2013
Mulder M Boeyens M Honiball R
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Purpose of study:

Reverse shoulder arthroplasty is effective in the management of symptomatic arthritic shoulders with a non-reconstructable rotator cuff. Optimal orientation and initial fixation of the glenoid component is correlated with improved outcomes. This may be difficult to achieve with distorted glenoid morphology. The authors present a previously undescribed system for accurate, consistent and reliable screw placement for fixation of the glenoid component with the desired version during reverse shoulder arthroplasty.

Description of methods:

The pre-operative CT scan images are used to construct a scapula model (Medical Image Processing software, CustomMed Orthopaedics)allowing the surgeon to determine the optimal position for screw placement based on available bone stock. A custom drill guide is made from polyamide, which is sterilized in an autoclave and fitted to the glenoid intra-operatively prior to reaming. The system minimizes the likelihood of malposition of glenoid components and is compatible with all arthroplasty systems.