title: Anterior spinal fusion with TSRH instrumentation for scoliosis.
abstract: OBJECTIVE
  To introduce a new spinal internal fixation system, Texas Scottish Rite Hospital (TSRH), and to investigate its early clinical outcomes.
  
  
  METHODS
  The preliminary clinical outcomes of 15 patients with thoracolumbar or lumbar scoliosis treated by anterior spinal fusion with TSRH instrumentation were studied retrospectively. Fourteen patients were diagnosed as idiopathic scoliosis and 1 as neuromuscular scoliosis.
  
  
  RESULTS
  Preoperatively, the Cobb's angle on the coronal plane was 55.8 degrees (range 35 degrees to approximately 78 degrees), and 14 degrees postoperatively, with an average correction of 74.8%. The average unfused thoracical curve was 35.9 degrees preoperatively (range 26 degrees to approximately 51 degrees) and 21.8 degrees (10 degrees to approximately 42 degrees) postoperatively, with 40% correction. The sagittal curve of lumbar was kept physiologically, preoperative 27.9 degrees and postoperative 25.7 degrees respectively. The trunk shift was 13.4 mm (5 to approximately 28 mm) preoperatively and 3.5 mm (0 to approximately 7 mm) postoperatively. The averaged apic vertebra derivation was 47.8 mm (21 to approximately 69 mm) before operation and 10.8 mm (3 to approximately 20 mm) after operation. The distance of C7 to center sacrum vertical line (CSVL) was 19.5 mm (16 to approximately 42) preoperatively and 11.3 mm (0 to approximately 32 mm) postoperatively. The apical vertebra rotation was 3 degree in 15 patients preoperatively, and were improved to normal in 10 patients, 1 degree in 4 patients, and 2 degree in 1 patients postoperatively. None had neurological injury and infection. Only 1 patient complained a cool feeling in the low extremity of concave side, and the symptom vanished at 3-month followed up.
  
  
  CONCLUSIONS
  If used appropriately, TSRH anterior spinal system is a good teatment for low thoracic or thoracic lumbar scoliosis.
authors.affiliation: Department of Orthopaedic Surgery Peking Union Medical College Hospital, CAMS & PUMC, Beijing 100730.
authors.forename: Jianxiong
authors.initials: J
authors.lastname: Shen
authors.forename: Guixing
authors.initials: G
authors.lastname: Qiu
authors.forename: Xisheng
authors.initials: X
authors.lastname: Weng
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
authors.forename: Jin
authors.initials: J
authors.lastname: Jin
authors.forename: Yipeng
authors.initials: Y
authors.lastname: Wang
authors.forename: Qibin
authors.initials: Q
authors.lastname: Ye
authors.forename: Jin
authors.initials: J
authors.lastname: Lin
mesh_terms: D000293:Adolescent; D000328:Adult; D001863:Bone Screws; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016268:Internal Fixators; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D011859:Radiography; D012189:Retrospective Studies; D012600:Scoliosis / Q000000981:diagnostic imaging / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome