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Comparison of total hip arthroplasty in osteoarthritis of mechanical and rheumatologic causes
Leandro Ejnisman1, Nathalia Zalc Leonhardt1, Laura Fillipini Lorimier Fernandes1
1Universidade de São Paulo, Faculdade de Medicina, São Paulo, SP, Brasil, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil.
Insights
Uncemented total hip arthroplasty shows comparable outcomes for patients with rheumatologic diseases and mechanical osteoarthritis. This study found no significant differences in osseointegration or implant survival between the groups.
Area of Science:
- Orthopedic Surgery
- Rheumatology
Background:
- Total hip arthroplasty (THA) is a common procedure for hip joint issues.
- Uncemented implants are an alternative to cemented ones, particularly in specific patient populations.
Purpose of the Study:
- To compare the efficacy of uncemented implants in total hip arthroplasty for patients with rheumatologic diseases versus mechanical osteoarthrosis.
- To evaluate osseointegration rates and failure percentages in these distinct patient groups.
Main Methods:
- Retrospective evaluation of 196 patients undergoing THA between 2005-2009.
- Patients were categorized into two groups: mechanical causes (165) and rheumatologic causes (31).
- Comparison of age, gender, follow-up time, osseointegration, and arthroplasty failure rates.
Main Results:
- No statistically significant differences in osseointegration rates were observed for either femoral or acetabular components between the groups.
- Rates of revision surgery and implant survival were also comparable, showing no significant variations.
Conclusions:
- Uncemented total hip arthroplasty demonstrates equivalent results in patients with rheumatologic conditions compared to those with mechanical osteoarthrosis.
- This suggests that uncemented implants are a viable option for rheumatologic patients undergoing THA.
Objective:
To compare the use of uncemented implants in total hip arthroplasty in patients with rheumathologic diseases and mechanical osteoarthrosis.
Methods:
We retrospectively evaluated 196 patients who were operated by the Hip and Arthroplasty Surgery Group of the IOT-HCFMUSP between 2005 and 2009. Patients were divided into two groups: mechanical causes (165 patients) and rheumathologic causes (31 patients). Groups were compared between each other in age, gender and follow-up time. Osseointegration rate and percentage of failure in arthroplasty were evaluated.
Results:
No statistically significant difference was found in osseointegration rates (in both femoral and acetabular components) in both groups. The rates of revision surgery and implant survival also did not show statistically significant differences.
Conclusion:
The use of uncemented total hip arthroplasty did not show worse results in rheumathologic patients. Level of Evidence III, Retrospective Case Control Study.
