[Good results with a cemented titanium stem after 7-9 years].

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Medical Device Engineering

Background:

• Controversial results exist for cemented hip stems made of titanium alloy.
• The Euroform stem is an anatomically designed prosthesis for cemented fixation, manufactured from Ti (6)Al (4)V.
• Investigating mid-term survival of the Euroform stem is crucial due to existing controversies.

Purpose of the Study:

• To evaluate the mid-term survival and clinical outcomes of the cemented Euroform hip stem.
• To assess the revision rate for aseptic femoral loosening associated with the Euroform prosthesis.
• To compare findings with other published studies on similar hip implants.

Main Methods:

• A cohort of 2,141 Euroform prostheses implanted between 1990 and 2000 was reviewed.
• Follow-up included 73 patients (87%) with 79 prostheses, examined 7-9 years post-implantation (average 94 months).
• Assessments involved questionnaires, clinical examinations, and radiological evaluations to determine the Harris-hip-score.

Main Results:

• A total of 5 revisions were performed: 3 for septic loosening and 2 for aseptic loosening.
• The revision rate for aseptic femoral loosening was 2.5% after an average of 94 months.
• The mean Harris-hip-score was 84 points, with 82% of patients reporting good or excellent results.

Conclusions:

• The Euroform cemented titanium alloy hip stem demonstrates good mid- to long-term results.
• These findings contrast with some previously published studies, suggesting favorable outcomes for this specific prosthesis.
• The Euroform stem offers a viable option for cemented hip arthroplasty with acceptable survival rates.