title: Computer hexapod assisted orthopaedic surgery (CHAOS) in the correction of long bone fracture and deformity.
abstract: We describe a surgical technique using the Taylor Spatial Frame intraoperatively to correct complex multiplanar deformities of the distal femur prior to definitive internal fixation using minimally invasive stabilization techniques. Eight procedures were done in 7 patients. All deformities were complex oblique plane deformities, often with a rotational component, and ranged from 10 degrees valgus to 35 degrees varus; up to 45 degrees of external rotation; 10 mm of translation and in 1 case, 100 mm of shortening. All patients underwent acute intraoperative deformity correction mediated by the Taylor Spatial Frame prior to definitive internal fixation using either a percutaneous locking plate or locked intramedullary nail. Deformity correction and restoration of the mechanical axis were achieved in all cases. There were no cases of wound breakdown, infection, nerve palsy or compartment syndrome. We believe the Taylor Spatial Frame can be effectively and safely used to assist the acute correction and subsequent internal fixation of limb deformity.
authors.affiliation: University Department of Orthopaedic Surgery and Bristol Limb Reconstruction Unit, Bristol Royal Infirmary, Bristol, United Kingdom. rogersmarkjohn@aol.com
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Rogers
authors.forename: Iain
authors.initials: I
authors.lastname: McFadyen
authors.forename: James A
authors.initials: JA
authors.lastname: Livingstone
authors.forename: Fergal
authors.initials: F
authors.lastname: Monsell
authors.forename: Mark
authors.initials: M
authors.lastname: Jackson
authors.forename: Roger M
authors.initials: RM
authors.lastname: Atkins
mesh_terms: D000293:Adolescent; D000328:Adult; D001858:Bone Nails; D001860:Bone Plates; D003201:Computers; D004867:Equipment Design; D016267:External Fixators; D005260:Female; D005593:Fracture Fixation, Internal; D006801:Humans; D016916:Joint Deformities, Acquired / Q000601:surgery*; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000295:instrumentation / Q000379:methods*; D010027:Osteotomy