Post-Market Clinical Investigation Plan- Collagen Dural Regeneration Matrix (DuraMatrix-Onlay Plus)

A prospective, post-market, open label clinical study at a maximum of 8 sites, with an enrollment of 118 subjects. The primary endpoint of the study will be the rate of revision surgery. The presence of adverse events will be evaluated at each follow-up time point i.e. CSF leak, infection and Pseudomeningocele. Patients will have a follow-up evaluation at least at 8 weeks post initial surgery date (which align with the approximate resorption time of the device) where possible and as deemed necessary by a clinician. No original patient records or personal identifying information will be disclosed to Collagen Matrix.