Cadaveric dissection study of 40 scapulae investigating whether consistent, cortically bordered bony pillars exist within the scapula that could serve as reliable anchor points for glenoid component fixation in primary and revision total shoulder arthroplasty.
When planning glenoid component fixation — especially in revision cases with significant bone loss from osteolysis or failed pegs/keels — target the spine and lateral border pillars with divergent screws: both are consistently present, cortically reinforced, and accessible through a standard deltopectoral approach, with the lateral pillar offering up to 160 mm of purchase.
Preoperative 3D CT can define pillar trajectory before the case.
Cadaveric dissection study of 40 scapulae investigating whether consistent, cortically bordered bony pillars exist within the scapula that could serve as reliable anchor points for glenoid component fixation in primary and revision total shoulder arthroplasty.
When planning glenoid component fixation — especially in revision cases with significant bone loss from osteolysis or failed pegs/keels — target the spine and lateral border pillars with divergent screws: both are consistently present, cortically reinforced, and accessible through a standard deltopectoral approach, with the lateral pillar offering up to 160 mm of purchase.
Preoperative 3D CT can define pillar trajectory before the case.