The PRECISION® Jones Fracture Screw System offers surgeons 120 unique screw options to address Zone 2 (Jones) fractures at the base of the 5th metatarsal.
The system is made up of 4.0 mm, 4.5 mm, 5.5 mm and 6.2 mm, solid and cannulated screws. The screws are constructed from Titanium Alloy that is Type II Anodized for improved fatigue strength. All screws have a short thread and blunt tip to minimize disruption to the cortical bone and remain within the intramedullary canal of the 5th metatarsal. All screws have a low-profile head to minimize prominence and avoid cuboid impingement. The system includes instrumentation designed to facilitate placement of a K-wire high and inside the proximal portion of the 5th metatarsal. The patent pending PRECISION® Jones Curved K-wire Guide positions a Nitinol K-wire into the center of the intramedullary canal simplifying placement which may reduce intraoperative fluoroscopy time. This Nitinol K-wire is designed to flex and follow the curvature of the intramedullary canal while limiting the chance of broaching the surrounding cortex. Finally, the system includes instrumentation for a cannulated technique to facilitate the surgeons preferred method of implanting with a cannulated or solid screw for fixation.