Effect of an Alumina Free Device Surface on BMD in Patients Implanted With an SL-PLUS™ Femoral Stem for THA

A Market Surveillance Study Assessing the Effect of an Alumina Free Device Surface on Bone Mineral Density in Patients Implanted With an SL-PLUS™ Femoral Stem for Total Hip Arthroplasty

Alumina particles from the grit blasting of Ti-alloy stems for hip arthroplasty are suspected to contribute to aseptic loosening. An alumina-reduced stem surface was hypothesized to improve osseointegration and show comparable short-term outcomes to those of a standard stem.

Inclusion Criteria:

• Patients aged 18 years and older undergoing primary THA for primary or secondary osteoarthritis will be enrolled.

Exclusion Criteria:

• Exclusion criteria were ongoing therapy with cortisone or medications influencing bone metabolism.