title: Knee arthrodesis as limb salvage for complex failures of total knee arthroplasty.
abstract: Patients with multiple failures of total knee arthroplasty (TKA) are challenging limb salvage cases. Twenty one patients over the last 10 years were referred to our service for knee fusion by arthroplasty surgeons who felt they were not candidates for revision TKA. Active infection was present in 76.2% and total bone loss averaged 6.6 cm. Lengthening was performed in 7/22 patients. Total time in Ilizarov frames was 9 months, with 93.3% union. Patients treated with IM fusion nails had 100% union. Average LLD increased from 3.6 to 4.5 cm following intervention, while those with concurrent lengthening improved to 1.6 cm. Findings suggest that bone loss and the soft-tissue envelope dictate knee fusion method, and multiple techniques may be needed. A treatment algorithm is presented.
authors.affiliation: Section of Orthopaedic Surgery, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Raul
authors.initials: R
authors.lastname: Kuchinad
authors.affiliation: Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
authors.forename: Mitchell S
authors.initials: MS
authors.lastname: Fourman
authors.affiliation: Limb Lengthening and Complex Reconstruction Service, Hospital for Special Surgery, Weill Cornell Medical College, New York, New York.
authors.forename: Austin T
authors.initials: AT
authors.lastname: Fragomen
authors.affiliation: Limb Lengthening and Complex Reconstruction Service, Hospital for Special Surgery, Weill Cornell Medical College, New York, New York.
authors.forename: S Robert
authors.initials: SR
authors.lastname: Rozbruch
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D001174:Arthrodesis / Q000379:methods*; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D005260:Female; D006801:Humans; D018889:Ilizarov Technique; D007719:Knee Joint / Q000601:surgery*; D007870:Leg Length Inequality / Q000601:surgery; D023821:Limb Salvage; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
keywords: Ilizarov; intramedullary nailing; knee arthrodesis; limb lengthening; total knee arthroplasty salvage