title: Shoulder replacement in end-stage rotator cuff tear arthropathy: 5- to 11-year follow-up analysis of the bi-polar shoulder prosthesis.
abstract: Between 1991 and 1997, 49 patients with rotator cuff arthropathy underwent 52 Bi-Polar shoulder replacements and were followed for 5-11 years (average follow-up 6.7 years). Active forward flexion increased an average of 35.2 degrees (from 45 degrees preoperatively to 80.2 degrees postoperatively). UCLA scores improved from 8.4 (range 4-16) preoperatively to 24.3 (range 15-35) postoperatively. Average age- and sex-adjusted Constant scores were 83.4% and ASES index was 68.5 points at the time of final review. Two shoulders (3.8%) were revised--both secondary to periprosthetic fracture requiring long-stem implants. Probability of survival at 11 years using Kaplan-Meier survival estimates was 93.3% (95% Cl: 84%-100%). Bipolar shoulder arthroplasty is an effective way to treat end-stage rotator cuff arthropathy with clinical results as good or better than those reported in the literature for hemiarthroplasty and total shoulder replacement with reasonable follow-up.
authors.affiliation: Joint Replacement Center, Advanced Orthopaedic Centers, Richmond, VA 23294, USA.
authors.forename: Efrain
authors.initials: E
authors.lastname: Diaz-Borjon
authors.forename: Kotaro
authors.initials: K
authors.lastname: Yamakado
authors.forename: Roque
authors.initials: R
authors.lastname: Pinilla
authors.forename: Prue
authors.initials: P
authors.lastname: Keith
authors.forename: Richard L
authors.initials: RL
authors.lastname: Worland
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019643:Arthroplasty, Replacement / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology; D010003:Osteoarthritis / Q000601:surgery; D010147:Pain Measurement; D017060:Patient Satisfaction; D011183:Postoperative Complications; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D012086:Reoperation; D012189:Retrospective Studies; D017006:Rotator Cuff / Q000601:surgery; D000070636:Rotator Cuff Injuries; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D020069:Shoulder Pain / Q000628:therapy; D016019:Survival Analysis