This is an Observational Device Registry Study of CERAMENT|G in normal use in accordance with the IFU. It will run for a period of three years from enrolment of the first patient into the Study at each Site, before being subject to review. A Device Registry is a form of observational study that concerns the performance of a device in normal use. It is intended to collect data that is reflective of 'real world' device performance.

Inclusion Criteria:

• 18 years and over (on the day of surgery)
• receive CERAMENT|G as a component of their treatment at a participating, contracted centre or healthcare provider, in accordance with the IFU for the implanted product
• In receipt of patient information leaflet and have signed appropriately designed informed consent form.

Exclusion Criteria:

• Any exclusion criteria as per IFU for CERAMENT|G
• Any off-label use

The racial, gender and ethnic characteristics of the individuals approached for participation in this Observational Registry Study shall reflect the demographics of patients that would ordinarily receive CERAMENT|G for the treatment of their condition at the designated investigative centres. No individuals shall be excluded from participation in the Observational Registry Study based on race, nationality, ethnicity, gender, or sexuality