title: Intraoperative CT navigation for glenoid component fixation in reverse shoulder arthroplasty.
abstract: CT navigation has been shown to improve component positioning in total shoulder arthroplasty. The technique can be useful in achieving strong initial fixation of the metal backed glenoid in reverse shoulder arthroplasty. We report a 61 years male patient who underwent reverse shoulder arthroplasty for rotator cuff arthropathy. CT navigation was used intraoperatively to identify best possible glenoid bone and to maximize the depth of the fixation screws that anchor the metaglene portion of the metal backed glenoid component. Satisfactory positioning of screws and component was achieved without any perforation or iatrogenic fracture in the scapula. CT navigation can help in maximizing the purchase of the fixation screws that dictate the initial stability of the glenoid component in reverse shoulder arthroplasty. The technique can be extended to improve glenoid component position [version and tilt] with the availability of appropriate software.
authors.affiliation: Department of Adult Joint Reconstructive Surgery, Parvathy Hospital, Chennai, India.
authors.forename: Ashok S
authors.initials: AS
authors.lastname: Gavaskar
authors.forename: K
authors.initials: K
authors.lastname: Vijayraj
authors.forename: Sd Muthukumar
authors.initials: SM
authors.lastname: Subramanian
keywords: CT navigation; Computer-assisted surgery; reverse shoulder arthroplasty; rotator cuff arthropathy