Advanced concepts in knee arthrodesis

Figure 3 Knee arthrodesis. A: Anteroposterior view full length standing radiograph shows that the left limb has a 3-cm limb length discrepancy. Note the lift that is used under the left limb; B: Anteroposterior view full length standing radiograph shows the distal femoral osteotomy and lengthening over the existing knee fusion nail. Note that the distal interlocking screws are removed from the nail; C: Full length lateral view radiograph shows that the pins of the external fixator have been placed away from the intramedullary nail; D: Postoperative anteroposterior view full length standing radiograph shows that interlocking screws have been placed and the external fixator has been removed. Note the resolution of the limb length discrepancy; E: Anteroposterior view full length standing radiograph obtained 2 years after lengthening (reprinted with permission from the Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore).