Survivorship of the Nottingham Total Shoulder Prosthesis
Author Information
Author(s): Nahum Rosenberg, Lars Neumann, Amit Modi, Istvan Mersich, Angus W. Wallace
Primary Institution: The Nottingham Shoulder and Elbow Unit, City Hospital, Nottingham, UK
Hypothesis
The redesign of the Nottingham Total Shoulder Replacement prosthesis will improve its survivorship rates compared to previous designs.
Conclusion
The redesigned Nottingham TSR system shows a high short-term survivorship rate that encourages its ongoing use.
Supporting Evidence
- The 8-year survivorship for the uncemented Nottingham TSR prosthesis was significantly higher at 81.8%.
- The 4-year survivorship of the redesigned Nottingham TSR prosthesis was 93.1%.
- Patients with rheumatoid arthritis had higher survivorship rates compared to those with osteoarthritis.
Takeaway
This study looked at different shoulder prostheses and found that the latest design lasts longer than older ones, which is good news for patients.
Methodology
Survivorship analyses of three types of uncemented total shoulder arthroplasty prostheses were compared in consecutive groups of patients.
Limitations
The study had a small sample size for the most recent design, limiting the power of statistical comparisons.
Participant Demographics
Group 1: 90 patients (15 men, 75 women, mean age 61); Group 2: 103 patients (12 men, 91 women, mean age 58); Group 3: 34 patients (2 men, 32 women, mean age 64).
Statistical Information
P-Value
p<0.001
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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