Knee Arthrodesis for Failed Total Knee Arthroplasty

This is a case of infected total knee replacement in an elderly man who is a compromised host with multiple comorbidities. Successful arthrodesis was accomplished with aggressive debridement and stabilization with two monolateral external fixators placed in a multi-planar (90–90°) fashion. Compression at the fusion site and staged bone grafting enhanced bony union. Bone loss and limb shortening were accepted in this patient, and a shoe lift was used.