Carpometacarpal interpositional spacer prosthesis trial

Carpometacarpal interpositional spacer trial devices are temporary, sterile implants used during surgery to test the fit and positioning of a permanent joint spacer before final placement. They help surgeons confirm the correct size, alignment, and orientation of the definitive prosthesis for patients undergoing carpometacarpal joint reconstruction or revision.

These devices are typically single-use, made from materials like metal or polymer, and come in graduated sizes to accommodate different patient anatomies. Regulation and classification vary by jurisdiction, but they are generally treated as surgical tools with specific labeling and handling requirements to ensure proper preoperative assessment.