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How Long Do Octogenarians Benefit From Knee Arthroplasty?

Can Doruk Basa¹, Elcil Kaya Bicer², Semih Aydogdu²

¹Department of Orthopaedics and Traumatology, Tepecik Training and Research Hospital, Izmir, TUR.

|June 16, 2021

Summary

Knee replacement surgery in octogenarians (patients over 80) showed longer survival benefits than anticipated. Careful patient selection can help avoid early mortality risks associated with this procedure.

Keywords:

geriatry knee mortality survey octogenarians total knee arthroplasty

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Area of Science:

Orthopedic Surgery
Geriatric Medicine
Biostatistics

Background:

Elderly patients face elevated surgical risks and mortality.
Knee arthroplasty is a common procedure for debilitating knee conditions.

Purpose of the Study:

To evaluate the survival rates of patients over 80 years old following knee arthroplasty.
To determine the long-term outcomes and survival benefits of knee replacement in octogenarians.

Main Methods:

Retrospective analysis of 62 knee arthroplasties in 52 patients aged over 80.
Survival data obtained from the Civil Registry Service.
Kaplan-Meier survival analysis used to determine survival rates.

Main Results:

The 5-, 10-, and 15-year survival rates were 59%, 19%, and 7%, respectively.
Mean survival time was 6.4 years, with a median of 5.6 years.
One-year mortality rate was 4.84%, with only one death within 90 days postoperatively.

Conclusions:

Octogenarians can experience significant and prolonged benefits from knee replacement.
Proper patient selection is crucial for mitigating early mortality risks in this age group.