title: Conversion of fused knee following distal femur tumor surgery to total knee arthroplasty.
abstract: Conversion of knee arthrodesis to total knee arthroplasty is a difficult procedure accompanied by many complications due to soft tissue and extensor mechanism contracture and bone defects. We report two cases of distal femur osteosarcoma that had been undergone wide resection arthrodesis initially. Arthrodesis was converted to total knee arthroplasty with hinged prosthesis after many years. We describe patients' history and outline their surgical therapy and prognosis. To the best of the authors' knowledge, few cases have been previously reported in the literature.
authors.affiliation: Department of Orthopedic Surgery, Iran University of Medical Sciences, Tehran, IR Iran.
authors.forename: Khodamorad
authors.initials: K
authors.lastname: Jamshidi
authors.affiliation: Department of Orthopedic Surgery, Arak University of Medical Science, Arak, IR Iran.
authors.forename: Hoseinali
authors.initials: H
authors.lastname: Hadi
authors.affiliation: Department of Anesthesiology, Gonabad University of Medical Sciences, Gonabad, IR Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Ramezan Shirazi
authors.affiliation: Department of Orthopedic Surgeon, Gonabad University of Medical Sciences, Gonabad, IR Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Moslem
keywords: Arthrodesis; Arthroplasty; Knee; Osteosarcoma; Replacement