title: A fluoroscopic grid in supine total hip arthroplasty: improving cup position, limb length, and hip offset.
abstract: We hypothesized that use of a novel fluoroscopic grid would decrease operative time and component positioning variability during anterior supine total hip arthroplasty (THA). We reviewed 99 anterior supine THAs: 39 using a fluoroscopic grid, and 60 using fluoroscopy alone. Goals were cup abduction of 40° ± 10° and limb length and hip offset within 10 mm of the contralateral side. Surgical time was decreased in the study group (79 vs 94 minutes, P = .002). In the study group, more components met the goal for cup abduction (97% vs 83%, P = .046), limb length (100% vs 88%, P = .04), hip offset (85% vs 67%, P = .047), and all 3 combined (82% vs 52%, P = .002). We demonstrated decreased component positioning variability during anterior supine THA with assistance of a fluoroscopic grid.
authors.affiliation: University of Utah, Department of Orthopaedic Surgery, Salt Lake City, Utah 84108, USA.
authors.forename: Jeremy M
authors.initials: JM
authors.lastname: Gililland
authors.forename: Lucas A
authors.initials: LA
authors.lastname: Anderson
authors.forename: Shannon L
authors.initials: SL
authors.lastname: Boffeli
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Pelt
authors.forename: Christopher L
authors.initials: CL
authors.lastname: Peters
authors.forename: Erik N
authors.initials: EN
authors.lastname: Kubiak
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D005260:Female; D005471:Fluoroscopy; D006615:Hip / Q000033:anatomy & histology; D006801:Humans; D007866:Leg / Q000033:anatomy & histology; D008297:Male; D008875:Middle Aged; D056888:Patient Positioning; D012189:Retrospective Studies