title: Computer-assisted cannulated screw fixation for slipped capital femoral epiphysis.
abstract: In slipped capital femoral epiphysis (SCFE), cannulated screw fixation is a standard procedure. The aim of this study was to investigate the feasibility of a fluoroscopy-supported navigation system for screw fixation in SCFE. Using a fluoroscopy-enhanced navigation system, a cannulated screw fixation was performed in seven hips of four patients. The navigation system showed a high feasibility in instrument visualization and implant placing. The mean x-ray time was 6.2 seconds. Initial experiences are very promising and show advantages of the fluoroscopy-supported navigation. Considerably reduced x-ray exposure for patients and surgeons is possible. In the future, further efforts will be necessary to develop navigation-specific instruments to enhance the precision of screw positioning.
authors.affiliation: Department of Orthopaedic Surgery, University of Regensburg, Regensburg, Germany. lars.perlick@klinik.uni-regensburg.de
authors.forename: Lars
authors.initials: L
authors.lastname: Perlick
authors.forename: Markus
authors.initials: M
authors.lastname: Tingart
authors.forename: Oliver
authors.initials: O
authors.lastname: Wiech
authors.forename: Johannes
authors.initials: J
authors.lastname: Beckmann
authors.forename: Holger
authors.initials: H
authors.lastname: Bäthis
mesh_terms: D000293:Adolescent; D001863:Bone Screws; D002648:Child; D004839:Epiphyses, Slipped / Q000601:surgery*; D005240:Feasibility Studies; D005260:Female; D005269:Femur; D006801:Humans; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods; D025321:Surgery, Computer-Assisted