Cemented shoulder prosthesis Foundation®

Developed in conjunction with Richard J. Friedman, MD FRCS (C) and Mark A. Frankle, MD, world-renowned authorities in shoulder reconstruction, the Foundation Shoulder System offers the latest advances in shoulder technology. The Foundation Shoulder System is designed to restore the natural biomechanics of the shoulder joint and reestablish soft tissue balance by maintaining proper height adjustments as well as humeral to glenoid articulation. FEATURES & BENEFITS: Foundation Shoulder System Canal Flare Index A ninety-three cadaver database of proximal humeri and matching scapulae was utilized to determine the optimal endosteal canal flare index of the Foundation ® Total Shoulder design. Canal flare index has important implications in designing an anatomical humeral stem for inherent stability in rotation and bending. Larger Radius Anatomical studies have shown that having the radius of the glenoid slightly greater than the radius of the humeral head provides advantages of allowing translation without loading the glenoid rim. Based on these studies, the radius of curvature of the Foundation glenoid component is 3mm larger in the superior/inferior dimension and 6mm larger in the anterior/posterior dimension than the corresponding humeral head. Head Size Range Fifteen CoCr neutral humeral head sizes are available representing 5 diameters with 3 standard heights for each diameter. Ten CoCr offset humeral head sizes are available allowing the surgeon unlimited options in head alignment. This comprehensive size range allows for optimum soft tissue balancing.