title: Pedicle subtraction osteotomy for rigid kyphosis of the dorsolumbar spine.
abstract: METHODS
  Pedicle subtraction osteotomy is one of the well established and popular techniques for kyphosis correction. 52 patients with dorsolumbar kyphosis followed up for a minimum period of 2 years after pedicle subtraction osteotomy were assessed prospectively for clinico-radiological and functional outcomes. Unacceptable cosmesis and severe back pain were the chief complaints preoperatively.
  
  
  RESULTS
  The average kyphosis at last follow-up was 8.4° compared to preoperative kyphosis of 58°. Union at the osteotomy site was achieved in all patients, and there were no major neurological complications. All patients showed a significant improvement in all subsets of Scoliosis Research Society (SRS-30) outcome measures following the surgery.
  
  
  CONCLUSIONS
  A greater degree of kyphosis correction (>40°) can be obtained with a single pedicle subtraction osteotomy at the dorsolumbar level with minimal neurological complications.
authors.affiliation: Parvathy Ortho Hospital, Door No. 63A/44, Gandhi Road, Gill Nagar, Choolaimedu, Chennai, 600094 Tamil Nadu, India. gavaskar.ortho@gmail.com
authors.forename: Ashok S
authors.initials: AS
authors.lastname: Gavaskar
authors.forename: T
authors.initials: T
authors.lastname: Naveen Chowdary
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007738:Kyphosis / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D010027:Osteotomy / Q000379:methods*; D011446:Prospective Studies; D011859:Radiography; D013131:Spine / Q000601:surgery*; D016896:Treatment Outcome