title: A new halo-pelvic apparatus.
abstract: METHODS
  A technical report of a new, versatile halo-pelvic apparatus for use in spinal immobilization is presented.
  
  
  OBJECTIVE
  To show how simple modifications of existing external fixation devices allow a halo-pelvic fixation apparatus to be constructed.
  
  
  BACKGROUND
  Halo-pelvic fixation has been used successfully in the past for immobilization and correction of severe spinal deformities such as tuberculous kyphosis. With the advent of new spinal instrumentation systems and techniques, external immobilization of the whole spine is rarely indicated. However, on rare occasions, spine surgeons may be presented with cases in which no internal fixation has been possible.
  
  
  METHODS
  Halo-skull fixation and pelvis fixation were performed using standard techniques. A simple custom-made halo connection bar was used to connect the halo to uprights from the pelvis external fixator. Because the majority of the system makes use of standard external fixation equipment, it is easy to apply and adjust.
  
  
  RESULTS
  Between 1997 and 2001, this frame was successfully applied to stabilize the spines of three patients with severe tuberculous kyphosis exceeding 100 degrees.
  
  
  CONCLUSIONS
  One simple modification of existing external fixation equipment has allowed a new halo-pelvic device to be constructed and used effectively to immobilize the spine.
authors.affiliation: Department of Orthopaedic Surgery, University of Hong Kong, Duchess of Kent Children's Hospital, Hong Kong.
authors.forename: Kenneth M C
authors.initials: KM
authors.lastname: Cheung
authors.forename: Eugene Y C
authors.initials: EY
authors.lastname: Kwan
authors.forename: Keith Y K
authors.initials: KY
authors.lastname: Chan
authors.forename: Keith D K
authors.initials: KD
authors.lastname: Luk
mesh_terms: D000368:Aged; D003646:Debridement; D005260:Female; D006801:Humans; D007738:Kyphosis / Q000150:complications / Q000175:diagnosis / Q000534:rehabilitation* / Q000601:surgery; D008161:Lumbosacral Region; D008279:Magnetic Resonance Imaging; D009984:Orthopedic Fixation Devices; D010388:Pelvis; D020127:Recovery of Function; D012149:Restraint, Physical / Q000295:instrumentation*; D013123:Spinal Fusion / Q000534:rehabilitation*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014399:Tuberculosis, Spinal / Q000150:complications / Q000175:diagnosis / Q000534:rehabilitation / Q000601:surgery