From the Research
Average Longevity of Total Hip Arthroplasty (THA) Prosthetics
- The average longevity of THA prosthetics can be assessed based on various studies, with some reporting on the survival rates of implants at different follow-up periods 1, 2, 3, 4.
- A study published in 2019 reported mean 5- and 10-year survival rates of 98.7% and 94.6%, respectively, for THA in patients younger than 55 years 2.
- Another study published in 2024 found that the survivorship free from revision for any reason was 97.2%, 95.8%, and 95.8% at 5,10, and 15 years, respectively, for contemporary THA in patients 30 years or younger 3.
- A long-term study published in 2022 reported an estimated survivorship at 34 years postoperatively of 90.9% for cup revision for aseptic loosening, 80.5% for stem revision for aseptic loosening, and 22.1% for any revision for THA using the Harris-Galante prosthesis in patients under 50 years 4.
- The cumulative incidence of revision was reported to be 2.9% at 5 years and 4.8% at 10 years in a study published in 2023 1.
Factors Affecting Longevity
- Various factors can affect the longevity of THA prosthetics, including patient age, diagnosis, and implant type 1, 2, 5.
- A study published in 2014 found that conventional polyethylene was associated with failure after revision THA 5.
- Another study published in 2019 reported that modular implants, cementless fixation, and metal-on-polyethylene bearings were frequently used in THA for patients younger than 55 years 2.
Clinical Outcomes
- THA has been shown to provide reliable outcomes at up to 10 years, with significant improvements in patient-reported outcome measures and low complication rates 2, 3.
- A study published in 2024 reported an average 34-point improvement in modified Harris Hip scores and a low major complication rate of 5.6% at 10-year follow-up for contemporary THA in patients 30 years or younger 3.