Unicompartmental Ankle Prosthesis Bone Preservation

The ankle replacement is segmented into two distinct options: total ankle replacement for bicompartmental disease and unicompartmental ankle replacement for single-compartment disease. This segmentation allows the surgeon to choose the less invasive option when appropriate, preserving bone in the healthy compartment while still achieving pain relief and mobility restoration in the affected compartment.

The unicompartmental prosthesis applies local quality by targeting only the degenerated compartment (medial or lateral) with the implant, while leaving the healthy compartment untouched. The prosthesis components (tibial tray, polyethylene insert, and talar dome) are designed to replace only the necessary articulating surfaces in the affected compartment, preserving bone and soft tissue in the healthy compartment.

The surgical procedure is segmented into two levels of complexity: total ankle replacement requiring extensive bone resection and ligament release, and unicompartmental replacement requiring only localized preparation in the affected compartment. This segmentation reduces surgical invasiveness while maintaining alignment restoration capability for appropriate patients.

The unicompartmental prosthesis applies partial action by performing only the necessary alignment correction in the affected compartment rather than requiring complete ankle joint reconstruction. This partial approach achieves sufficient alignment restoration for unicompartmental disease while reducing surgical invasiveness.

The product line is segmented into two distinct prostheses: total ankle replacement for bicompartmental disease and unicompartmental ankle replacement for single-compartment disease. This segmentation allows each prosthesis to be optimized for its specific indication, with the unicompartmental version preserving bone in healthy compartments while the total replacement addressing all compartments when needed.

The manufacturer offers a universal solution set that includes both total and unicompartmental prostheses, allowing the surgical team to select the appropriate device based on the patient's specific pathology. This universal approach ensures that bone preservation is achieved when possible (unicompartmental) while maintaining the capability to treat bicompartmental disease (total replacement).