title: Posterior spinal shortening for paraparesis following vertebral collapse due to osteoporosis.
abstract: METHODS
  Retrospective case series.
  
  
  OBJECTIVE
  To assess the efficacy of posterior spinal shortening for paraparetic patients following vertebral collapse owing to osteoporosis, especially on instrumentation loosening.
  
  
  METHODS
  Department of orthopaedic surgery, Jichi Medical University Hospital and Omiya Medical Center in Japan.
  
  
  METHODS
  The clinical records and radiographs of 13 patients with paraparesis following vertebral collapse owing to osteoporosis treated with posterior spinal shortening were retrospectively reviewed to evaluate the usefulness of this method. Assessment of the clinical course was done by direct examination in all cases. Ambulatory ability was divided into four categories.
  
  
  RESULTS
  Upon final observation, nine cases were able to walk with a cane or crutch, one case remained in gait training, two cases remained unable to stand and one case with urinary incontinence improved in urinary function. In one case, paralysis deteriorated. Vertebral compression fracture of the end vertebrae that were fixed occurred in three cases complicated with rheumatoid arthritis.
  
  
  CONCLUSIONS
  The posterior spinal shortening can be a choice for treating delayed paraparesis following vertebral collapse owing to osteoporosis.
authors.affiliation: Department of Orthopaedic Surgery, Jichi Medical School Omiya Medical Center, Saitama, Japan. saita-k@jichi.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Saita
authors.forename: Y
authors.initials: Y
authors.lastname: Hoshino
authors.forename: T
authors.initials: T
authors.lastname: Higashi
authors.forename: K
authors.initials: K
authors.lastname: Yamamuro
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001863:Bone Screws / Q000592:standards; D019299:Decompression, Surgical / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D016268:Internal Fixators / Q000592:standards; D007738:Kyphosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000295:instrumentation / Q000379:methods*; D010024:Osteoporosis / Q000150:complications / Q000473:pathology / Q000601:surgery*; D020335:Paraparesis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D018579:Patient Selection; D011183:Postoperative Complications / Q000209:etiology / Q000517:prevention & control; D011859:Radiography; D012189:Retrospective Studies; D018570:Risk Assessment; D013117:Spinal Cord Compression / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D013122:Spinal Diseases / Q000150:complications / Q000473:pathology / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods; D013131:Spine / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D016474:Weight-Bearing / Q000502:physiology