title: Predictors of kyphotic deformity in osteoporotic vertebral compression fractures: a radiological study.
abstract: OBJECTIVE
  To report the radiological predictors of kyphotic deformity in osteoporotic vertebral compression fractures (OVCF).
  
  
  METHODS
  This is a retrospective study of 64 consecutive patients with OVCF. We studied the radiographic features in the immediate post-injury image of patients, who developed significant (more than 30°) segmental kyphotic deformity at final follow-up and compared them with those patients who did not.
  
  
  RESULTS
  Thirty-three (82.5%) out of 40 patients with fracture at thoracolumbar (TL) junction, 5 (33.3%) patients out of 15 with fracture at lumbar (L) spine and 7 (77.7%) patients out of 9 with fracture at thoracic (T) spine developed significant segmental kyphotic deformity. Forty-one (75.9%) [TL-33 (80.5%), L-4 (33.33%) and T-4 (80%)] out of 54 [TL-37 (68.51%), L-12 (22.23%) and T-5 (9.26%)] patients with superior endplate fracture developed significant segmental kyphotic deformity. Forty patients (86.9%) [TL-28 (70%), L-6 (15%) and T-6 (15%)] out of 46 [TL-32 (69.56%), L-8 (17.4%) and T-6 (13.04%)] with anterior cortical wall fracture developed significant segmental kyphotic deformity. Five patients (71.42%) [TL-2 (40%) and T-3 (60%)] out of 7 [TL-02 (28.58%), L-01 (14.28%), T-04 (57.14%)] with adjacent level fracture developed significant segmental kyphotic deformity. The average immediate post-injury kyphosis of 11° (5°-25°) increased to 29° (15°-50°) at final follow-up.
  
  
  CONCLUSIONS
  Progressive segmental kyphotic collapse following an OVCF seems unavoidable. Patients with TL junction and superior endplate fracture are probably at the highest risk for significant segmental kyphotic deformity.
authors.affiliation: Spine Clinic, P D Hinduja National Hospital and MRC, Mumbai, India, sanganpatil9@gmail.com.
authors.forename: Sanganagouda
authors.initials: S
authors.lastname: Patil
authors.forename: Abhay M
authors.initials: AM
authors.lastname: Nene
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005260:Female; D050815:Fractures, Compression / Q000000981:diagnostic imaging*; D006801:Humans; D007738:Kyphosis / Q000000981:diagnostic imaging*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D058866:Osteoporotic Fractures / Q000000981:diagnostic imaging*; D011859:Radiography; D012189:Retrospective Studies; D012307:Risk Factors; D016103:Spinal Fractures / Q000000981:diagnostic imaging*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging