title: C-arm as intraoperative control in reduction of isolated zygomatic arch fractures: a randomized clinical trial.
abstract: OBJECTIVE
  Isolated zygomatic arch fractures (IZAFs) are habitually reduced at a distance, via a temporal approach. Open reductions are not recommended due to the associated morbidity and complications. However, performing closed reductions makes it difficult to determine whether it was done satisfactorily. This study aims to determine whether the acquisition of intraoperative images with a C-arm to evaluate IZAF reductions is a useful technique in treating such fractures.
  
  
  METHODS
  Our hypothesis is that acquiring intraoperative images with a C-arm reduces the need for a second surgery. Between 2009 and 2012, 50 patients who were diagnosed with IZAF requiring surgery were randomly distributed into two groups: 25 patients were in the experimental group, where fracture reduction was performed and immediately corroborated intraoperatively for an adequate result using a C-arm, and 25 patients were assigned to a control group where the fracture reduction was controlled with post-surgery imaging.
  
  
  RESULTS
  The results did not reveal significant differences between both groups (p = 0.5). Nevertheless, the experimental group had the advantage of being able to immediately reduce the fracture again if the result was unsatisfactory.
  
  
  CONCLUSIONS
  Despite the fact that the results are not statistically significant (p = 0.5), the authors recommend undertaking an intraoperative imaging analysis in areas where we are not certain of the reduction.
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile. capedemonte@gmail.com.
authors.forename: Christian
authors.initials: C
authors.lastname: Pedemonte
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Felipe
authors.initials: F
authors.lastname: Sáez
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Ilich
authors.initials: I
authors.lastname: Vargas
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Edgardo
authors.initials: E
authors.lastname: González
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Marco
authors.initials: M
authors.lastname: Canales
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Diego
authors.initials: D
authors.lastname: Lazo
authors.affiliation: Department of Maxillofacial Surgery, Hospital Clínico Mutual de Seguridad C.Ch.C, Av Libertador Bernardo O'Higgins, 4848, Santiago de Chile, Chile.
authors.forename: Hernán
authors.initials: H
authors.lastname: Pérez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000465:Algorithms; D054893:Cone-Beam Computed Tomography / Q000295:instrumentation*; D005260:Female; D005592:Fracture Fixation / Q000379:methods*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D055815:Young Adult; D015051:Zygomatic Fractures / Q000000981:diagnostic imaging / Q000601:surgery*
keywords: C-arm; Intraoperative imaging; Zygomatic arch fracture