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Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
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Improved survival for anatomic total shoulder prostheses
Bjørg T S Fevang1, Tone W Nystad, Arne Skredderstuen
1Department of Rheumatology, Haukeland University Hospital.
Acta Orthopaedica
|November 12, 2014
Summary
Shoulder replacement implant survival is good for all types. Anatomic total prostheses showed significantly improved survival in recent years, supporting their increased use over hemiprostheses.
Area of Science:
- Orthopedic surgery
- Biomaterials science
- Medical device engineering
Background:
- Historically, total shoulder prostheses had lower implant survival than hemiprostheses.
- Increased use of total shoulder prostheses in Norway is linked to reported good functional outcomes.
Purpose of the Study:
- To evaluate and compare implant survival rates for four major shoulder prosthesis types.
- To analyze trends in shoulder replacement survival between 1994 and 2012 in Norway.
Main Methods:
- Analysis of 4,173 shoulder replacements from the Norwegian Arthroplasty Register (hemiprostheses, anatomic total prostheses, resurfacing prostheses, reversed total prostheses).
- Comparison of implant survival across three time periods (1994-1999, 2000-2005, 2006-2012) using Kaplan-Meier curves and Cox regression analysis.
Main Results:
- All prosthesis types demonstrated good 5-year implant survival rates.
- Anatomic total prostheses showed a significant improvement in survival rates in the 2006-2012 period compared to 1994-1999.
- Resurfacing prostheses showed a decrease in survival rates in the most recent period.
Conclusions:
- Good 5-year implant survival was observed across all shoulder prosthesis types studied.
- The significant improvement in anatomic total prosthesis survival supports their increasing clinical adoption.
- Functional outcomes favor total shoulder prostheses, justifying their growing use.
