Abstract
Background
The role of different surgical approaches and types of implant (1-17), surgical technique (9, 10, 21-24), patient's age (6, 8, 31), activity level (5), weight (17) and other demographic factors have been investigated in a lot of studies. The aim of this study is to assess the effect of demographic factors as well as the effect of traditional life-style in patients who had total hip arthroplasty (THA) in our centre within the past 20 years.
Materials and Methods
We reviewed the average Harris Hip Score (HHS) and the prosthesis survival in 210 patients including 235 THAs and 49 revisions between 1985 - 2005. The mean F/U was 6.1 years and average HHS was 78.08±15.7. 26 patients were dead and 17 were inaccessible. The effects of traditional life-style and daily activity level on implant loosening were also considered.
Findings
Multivariable analysis showed that patient's sex, surgical technique, surgeon, BMI, use of cement weren't related to either implant loosening or HHS. We had 25 prosthesis dislocations, which all happened by trauma. Considering revision surgery as the end point, the following 10-year-survivals were calculated; cemented cup 60%, uncemented cup 85% and both cemented/uncemented stems 80%. Considering radiographic evidence of loosening as the end point, the 10-year-survival of cups was 80% and that of cemented, uncemented stems was 60% and 70%.
Conclusion
Delay in performance THA resulted in more limping (because of anatomy deterioration and muscles weakness) and lower HH. Scores. Additionally, the survival of our THAs were generally shorter than literature.
