title: [Assessment of correction effect in relation to fulcrum bending flexibility in adult idiopathic scoliosis patients].
abstract: OBJECTIVE
  To study the relationship between the fulcrum bending flexibility (FBF) and correction rate (CR) of adult idiopathic scoliosis, and to explore the ability of FBF to assess the correction effect in relation to fulcrum bending flexibility.
  
  
  METHODS
  69 patients with adult idiopathic scoliosis with structural curves at thoracic or lumbarthoracic segments, 16 males and 53 females, aged 26.5 (19 - 53) were treated by pedicle screws instrumentation. Pre-operative standing and fulcrum bending films and postoperative standing X-ray film were taken. Cobb angle was measured. The data underwent regression analysis with the software SPSS 10.0.
  
  
  RESULTS
  A regression formula was established: CR = 0.213 + 0.768 x FBF with P < 0.01.
  
  
  CONCLUSIONS
  A definite linear relation exists between the FBF and CR of adult idiopathic scoliosis. By using the formula in proper samples, the effects of new instrumentation or correction technique can be objectively assessed.
authors: Department of Orthopedics, Peking Union Medical College Hospital, Peking Union Medical College, Beijing 100730, China.
authors: Ruo-Feng
authors: RF
authors: Yin
authors: Yi-Peng
authors: YP
authors: Wang
authors: Gui-Xing
authors: GX
authors: Qiu
authors: Jian-Guo
authors: JG
authors: Zhang
authors: Zhi-Hong
authors: ZH
authors: Wu
authors: Jia-Zhi
authors: JZ
authors: Yan
authors: Qi
authors: Q
authors: Fei
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures; D016059:Range of Motion, Articular; D012600:Scoliosis / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult