title: Posterior pedicle fixation-based dynamic stabilization devices for the treatment of degenerative diseases of the lumbar spine.
abstract: METHODS
  Literature review.
  
  
  OBJECTIVE
  To provide a comprehensive review of the available literature reporting clinical results of using pedicle-based posterior dynamic stabilization systems in the lumbar spine.
  
  
  METHODS
  A literature search was performed using a number of key words including: posterior dynamic stabilization, facet replacement, pedicle fixation.
  
  
  RESULTS
  There is a wide array of pedicle-based, posterior dynamic stabilization systems available. Purported indications are also varied, spanning from degenerative disk disease to reconstruction after laminectomy for spinal stenosis. Short-term and mid-term clinical results of some of these devices are available. For many others, clinical studies are still underway or have just begun.
  
  
  CONCLUSIONS
  For the spine community to draw sound conclusions that a posterior dynamic device is better than fusion, results from multiple, similarly designed, independently funded trials must be compiled, compared, and contrasted.
authors.affiliation: Department of Orthopaedic Surgery, Orthopaedic Spine Service, Harvard Medical School, Boston, MA 02115, USA. bonocm@prodigy.net
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Bono
authors.forename: Murali
authors.initials: M
authors.lastname: Kadaba
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Vaccaro
mesh_terms: D018450:Disease Progression; D017586:Diskectomy / Q000295:instrumentation / Q000379:methods; D006801:Humans; D016268:Internal Fixators / Q000592:standards / Q000639:trends*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000295:instrumentation* / Q000379:methods*; D011183:Postoperative Complications / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D019651:Plastic Surgery Procedures / Q000295:instrumentation / Q000379:methods; D013122:Spinal Diseases / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D016474:Weight-Bearing / Q000502:physiology