title: Computer navigation and patient-specific instrumentation in shoulder arthroplasty.
abstract: Longevity of total anatomic and reversed shoulder arthroplasty largely depends on accurate correction of glenoid deformity and correct positioning and fixation of the glenoid component. However, the morphology of the scapula is inconsistent, varying degrees of osteoarthritis cause numerous anatomic changes, and standard 2-dimensional imaging and standard surgical instrumentation are imprecise for preoperative planning and execution of glenoid reconstruction. Recently, various authors have shown that preoperative 3-dimensional surgical planning and computer navigation technology may increase the accuracy and repeatability of the implantation of the glenoid component, especially for the position and orientation of the glenosphere and screws in reversed arthroplasty. These novel techniques may allow the surgeon to better define the preoperative deformity, select the optimal implant position, and then accurately execute the plan at the time of surgery. Future studies are needed to determine the long-term effect on functional outcome and cost-effectiveness of computer-assisted technology in shoulder arthroplasty.
authors.affiliation: *Department of Orthopedic Surgery, AZ Monica Hospital and University Hospital of Antwerp, Deurne, Belgium †Department of Orthopedic Surgery, Hôpital Ambroise Paré, Boulogne, Paris, France ‡Department of Surgery, Queen's University and Kingston General Hospital, Kingston, ON, Canada.
authors.forename: Olivier
authors.initials: O
authors.lastname: Verborgt
authors.forename: Matthias
authors.initials: M
authors.lastname: Vanhees
authors.forename: Steven
authors.initials: S
authors.lastname: Heylen
authors.forename: Philippe
authors.initials: P
authors.lastname: Hardy
authors.forename: Geert
authors.initials: G
authors.lastname: Declercq
authors.forename: Ryan
authors.initials: R
authors.lastname: Bicknell
mesh_terms: D019643:Arthroplasty, Replacement / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional; D007595:Joint Prosthesis; D011474:Prosthesis Design; D012785:Shoulder Joint / Q000601:surgery*; D025321:Surgery, Computer-Assisted