Knee arthrodesis with navigation: a new indication for computer-assisted surgery? A case report

We describe a case of navigation-aided knee arthrodesis in a patient with a previous femoral deformity. Because of the complex deformity and the foreseeable difficulties in obtaining correct limb mechanical axis, a wireless navigation system was used to perform cuts of the distal femur and proximal tibia in both the coronal and sagittal planes. For a stable arthrodesis two monolateral external fixation devices were used. Twenty months after the procedure the patient did not have pain and walked without the aid of walking sticks. The final mechanical axis was 180 degrees.