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Cementless Vektor-titan stem in total hip arthroplasty
Alexander Schuh1, Alexander Ebert, Ulrich Holzwarth
1Orthopädische Klinik Rummelsberg, Rummelsberg 71, 90592 Schwarzenbruck.
Biomedizinische Technik. Biomedical Engineering
|March 29, 2005
Summary
The Vektor-Titan stem in cementless total hip arthroplasty demonstrated optimized proximal fixation in 96.8% of cases. Further long-term studies are required to validate these promising outcomes for younger patients.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Medical Engineering
Background:
- Cementless total hip replacement (THR) is a standard procedure for younger patients.
- The Vektor-Titan stem, made of Ti6AI7Nb, features a conical design for optimal proximal anchoring.
Purpose of the Study:
- To evaluate the clinical outcomes of 250 cementless total hip replacements using the Vektor-Titan stem.
- To assess the efficacy and safety of the Vektor-Titan stem in a prospective study.
Main Methods:
- Prospective evaluation of 250 Vektor-Titan cementless total hip arthroplasties.
- Average follow-up of 3.0 years in patients with an average age of 54.6 years.
Main Results:
- Significant improvement in Merle d'Aubigné scores from 9.3 to 17.0.
- Stable proximal fixation achieved in 96.8% (242/250) of cases.
- Reported complications included dislocations, nerve lesions, and thromboembolic events.
Conclusions:
- The Vektor-Titan stem demonstrates optimized proximal fixation in cementless total hip arthroplasty.
- The study supports the principle of proximal fixation for this implant.
- Long-term follow-up studies are recommended to confirm the sustained efficacy.