A Comparison Between Titanium Femoral Stem and Cobalt-Chromium Femoral Stem in Cemented Hip Arthroplasty

A Comparison Between Titanium Femoral Stem and Cobalt-Chromium Femoral Stem in Cemented Hip Arthroplasty. A Randomized Prospective Roentgen Stereogrammetric Analysis.

In this randomised study, the migration of a specific cemented titanium femoral stem will be compared with a similar cemented cobalt-chromium stem using Roentgen stereogrammetric analysis (RSA). In addition, the periprosthetic bone mineral density (BMD) will be evaluated to point out any interference from the modulus of the stem investigated.

Inclusion Criteria:

• Primary osteoarthritis of the hip
• Spinal anesthesia
• Informed written consent

Exclusion Criteria:

• Neuromuscular disease in the affected leg
• Vascular disease in the affected leg
• Fracture sequelae in the affected hip
• Weight over 100 kg
• Regular non-steroid anti-inflammatory drug (NSAID) intake in the postoperative period