title: Halo-gravity traction combined with assisted ventilation: an effective pre-operative management for severe adult scoliosis complicated with respiratory dysfunction.
abstract: To investigate the change of pulmonary function in adult scoliosis patients with respiratory dysfunction undergoing HGT combined with assisted ventilation.
  
  
  
  21 adult patients were retrospectively reviewed with a mean age of 26.2 years. Inclusion criteria were as follows: age over 18 years old; coronal Cobb angle greater than 100°; with respiratory failure; and duration of HGT more than 1 month. All patients underwent respiratory training.
  
  
  
  The Cobb angle averaged 131.21° and was reduced to 107.68° after HGT. Significantly increased mean forced vital capacity (FVC) was found after HGT (P = 0.003) with significantly improved percent-predicted values for FVC (P < 0.001). Meanwhile, significantly increased forced expiratory volume in 1 s (FEV1) was also observed (P < 0.001) with significantly improved percent-predicted values for FEV1 (P = 0.003) after HGT.
  
  
  
  The results of our study revealed that combined HGT and assisted ventilation would be beneficial to pulmonary function improvement in severe adult scoliosis cases, most of which were young adults.
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Hongda
authors.initials: H
authors.lastname: Bao
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Yan
authors.affiliation: Geisel School of Medicine, Dartmouth College, Hanover, NH, USA.
authors.forename: Mike
authors.initials: M
authors.lastname: Bao
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Qiu
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Zezhang
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Jack C Y
authors.initials: JC
authors.lastname: Cheng
authors.affiliation: Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Bobby K W
authors.initials: BK
authors.lastname: Ng
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China. gulouspine@gmail.com.|Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China. gulouspine@gmail.com.|The Joint Scoliosis Research Center of Nanjing University and the Chinese University of Hong Kong, Hong Kong, China. gulouspine@gmail.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhu
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005541:Forced Expiratory Volume; D006112:Gravitation; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000379:methods*; D012121:Respiration, Artificial / Q000379:methods*; D012131:Respiratory Insufficiency / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D012189:Retrospective Studies; D012600:Scoliosis / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D014143:Traction / Q000379:methods*; D014797:Vital Capacity; D055815:Young Adult
keywords: Adult scoliosis; Halo-gravity traction; Pulmonary function; Severe scoliosis