Excella II Polyaxial Pedicle Screw used as a pedicle screw system in skeletally mature patients, is intended to provide immobilization and stabilization of spinal segments, as an adjunct to fusion, in treatment of the following acute and chronic deformities of the thoracic, lumbar, and sacral spine:
Nine lots of 8.5 mm Polyaxial Pedicle Screws are at risk of breakage.
United States
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0644-2018