title: Low-profile pelvic fixation with sacral alar-iliac screws.
abstract: BACKGROUND
  In the last years, a new technique for pelvic fixation using 'sacral alar-iliac' screws has been proposed as an alternative to the classic 'iliac wing' screws and the old Galveston technique.
  
  
  METHODS
  The authors provide a 'step-by-step' review of the technical details regarding this technique, as well as some important anatomical and radiological landmarks for its successful performance.
  
  
  CONCLUSIONS
  'Sacral alar-iliac' screws provide several advantages in relation to pelvic fixation with iliac bolts such as: better alignment with the rods, use of a 'low-profile' screw, and fixation of the sacroiliac (SI) joint, which avoids postoperative SI joint-related pain.
authors.affiliation: Department of Neurosurgery, University of Illinois College of Medicine at Peoria, 828 NE Glen Oak, #302, Peoria, IL 61603, USA. tobias.a.mattei@osfhealthcare.org
authors.forename: Tobias A
authors.initials: TA
authors.lastname: Mattei
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Fassett
mesh_terms: D001863:Bone Screws; D006801:Humans; D007085:Ilium; D012447:Sacrum; D013122:Spinal Diseases / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods*