Glenoid morphology and the safe zone for protecting the suprascapular nerve during baseplate fixation in reverse shoulder arthroplasty

摘要: The purpose of this study was to investigate glenoid morphology and define the safe zone for protecting suprascapular nerve baseplate screw during fixation in reverse shoulder arthroplasty (RSA) a Chinese population. Shoulder computed tomography (CT) scans from 56 subjects were retrospectively reviewed. Three-dimensional (3D) reconstruction performed using Mimics software, corresponding bony references used evaluate morphology. To standardize evaluation, coronal scapular plane defined. Safe distances placements investigated by constructing simulated cutting RSA. Mean height 35.83 ± 2.95 mm, width 27.32 ± 2.78 mm, with significant sexual dimorphism (p < 0.01). According morphology, average radius 13.84 ± 1.34 mm. notch two reference points at base spine 30.27 ± 2.77 mm, 18.39 ± 1.67 mm 16.52 ± 1.52 mm, respectively, gender-related difference. Based on clock face indication system, danger caused projection oriented between o’clock eight positions right shoulder. Glenoid size RSA characterized Careful consideration avoidance injury are important improved clinical outcome.