Bone-nailing spacer

A bone-nailing spacer is a precision tool used in orthopedic surgery to maintain accurate spacing between an intramedullary nail (such as femoral or humeral) and an aiming arm during surgical planning. It ensures proper alignment before the nail is implanted, then remains in place to guide final positioning after the nail is inserted into the bone.

These devices are typically reusable and made from durable materials like stainless steel or titanium. Regulation varies by jurisdiction, but they are generally classified based on their role in surgical precision and risk profile, often requiring compliance with medical device standards for reusable instruments.