Femoral head prosthesis SPHERIC®

Two hemi-arthroplasty options: SPHERIC® RL: constrained liner SPHERIC®: retaining ring SPHERIC® RL and SPHERIC®: - Highly polished, stainless steel outer cup surface - Pre-assembled polyethylene liner - Instrumentation used to determine implant size SPHERIC® RL : Femoral head retention ensured by retaining lip at its recess threshold. Chamfer at threshold of retaining lip delays contact with stem neck, allows greater clearance of femoral stem in cup and helps to reduce PE wear. Liner works with 28 mm heads. SPHERIC®: Femoral head retention ensured by modular retaining ring. Ring is put into place with pincers. Chamfer at threshold of retaining ring delays contact with stem neck, allows greater clearance of femoral stem in cup and helps to reduce PE wear.