title: The glenoid center line.
abstract: This study sought to define a point on the anterior glenoid surface to serve as a marker for glenoid orientation and to present the concept of a glenoacromial version angle. Twenty fresh-frozen cadaver scapulas were examined. A line perpendicular to the glenoid surface exited the anterior scapular cortex in all specimens at an average distance of 29.3 +/- 3.9 mm. The average glenoacromial version angle was 60 degrees +/- 110 degrees. These numbers may allow better intraoperative assessment of glenoid version.
authors.affiliation: Department of Orthopedic Surgery, Rush-Presbyterian-St Luke's Medical Center, Chicago, IL, USA.
authors.forename: James
authors.initials: J
authors.lastname: Bicos
authors.forename: Augustus
authors.initials: A
authors.lastname: Mazzocca
authors.forename: Anthony A
authors.initials: AA
authors.lastname: Romeo
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019643:Arthroplasty, Replacement; D006801:Humans; D007595:Joint Prosthesis; D011474:Prosthesis Design; D012785:Shoulder Joint