title: Implementation of a CT-based navigation system in two-stage reimplantation for infected total knee arthroplasty.
abstract: Femorotibial alignment is an important factor affecting patient outcome after total knee arthroplasty (TKA). It was the aim of this study to report our first results using a CT-based navigation system in two-stage revision surgery for infected TKA. Two patients with chronic deep infection after primary TKA underwent two-stage revision arthroplasty with temporary articulating cement spacers followed by prosthesis re-implantation using a CT-based navigation system. Postoperative radiographs showed accurate alignment of the femoral and tibial components. CT-based navigation systems offer the opportunity for preoperative planning and accurate intra-operative navigation of cutting blocks. They can be considered of value for primary TKA but even more so for two-stage revision arthroplasty.
authors.affiliation: Department of Orthopaedic Surgery, University of Regensburg, Postfach 100662, 93042 Regensburg. lars.perlick@klinik.uni-regensburg.de
authors.forename: Lars
authors.initials: L
authors.lastname: Perlick
authors.forename: Holger
authors.initials: H
authors.lastname: Bäthis
authors.forename: Markus
authors.initials: M
authors.lastname: Tingart
authors.forename: Joachim
authors.initials: J
authors.lastname: Grifka
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D002908:Chronic Disease; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D016459:Prosthesis-Related Infections / Q000000981:diagnostic imaging* / Q000601:surgery*; D012086:Reoperation; D013977:Tibia / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*