A differentiated platform for long-construct spinal fusion
Conventional posterior spinal fixation rods carry a single constant diameter along their full length, forcing surgeons to accept a uniform stiffness profile poorly matched to the variable anatomy and bone quality of the spinal column. Earlier “stepped” designs introduced abrupt diameter changes that created stress concentrations and restricted screw placement. The patented Spinal Resources design replaces abrupt transitions with smooth, continuous Bezier curve geometry, enabling segment-by-segment customization of the rod cross-section along its entire length. Variable-stiffness Bézier rods, combined with rod contour morphotypes derived from post-operative outcome databases and AI-enabled surgical planning, provide a patient-specific, single-construct solution from occiput to sacrum, eliminating the mechanical liabilities of coupled multi-rod assemblies. These features are designed to mitigate risks of complications such as adjacent segment disease (Proximal Junction Kyphosis (PJK) or Failure (PJF)), implant loosening, and stress shielding of the bone.