title: Comparison between subcutaneous closed-suction drainage and conventional closed-suction drainage in adolescent idiopathic scoliosis patients undergoing posterior instrumented spinal fusion: a randomized control trial.
abstract: METHODS
  Prospective, randomized controlled clinical study.
  
  
  OBJECTIVE
  To evaluate the efficacy of subcutaneous closed-suction drainage in reducing blood loss as compared with conventional closed-suction drainage in adolescent idiopathic scoliosis cases undergoing posterior instrumented spinal fusion.
  
  
  BACKGROUND
  Subcutaneous closed-suction drainage is reported to be a reasonable alternative to intra-articular indwelling closed-suction drainage and to that of no usage of any drainage system in knee arthroplasty. However, little is reported about the use of subcutaneous closed-suction drainage in adolescents idiopathic scoliosis patients undergoing posterior instrumented spinal fusion.
  
  
  METHODS
  A total of 105 adolescent idiopathic scoliosis patients undergoing posterior instrumented spinal fusion were randomized into 2 groups of either a subcutaneous drainage or a conventional closed-wound suction drainage system. These 2 groups were compared for demographic distribution, blood loss (hemoglobin/hematocrit changes, transfusion requirements), and incidence of wound problems (requirements for dressing reinforcement, oozing, subcutaneous hematoma, ecchymosis, infection).
  
  
  RESULTS
  Mean drainage volume was less (P=0.000) in the subcutaneous closed-wound suction drainage group compared with the conventional closed-wound suction drainage group (42 vs. 631 mL). The groups were statistically similar in terms of hemoglobin and hematocrit values obtained on the third postoperative day (10.60 vs. 9.52 g/dL, P=0.110; 30.85% vs. 27.82%, P=0.226), on discharge (10.90 vs. 9.75 g/dL, P=0.114; 31.10% vs. 28.13%, P=0.147), transfusion requirements (31.2% vs. 45.6%, P=0.133), and incidence of wound problems. However, the core temperature values were higher in subcutaneous closed-wound suction drainage group compared with the conventional closed-wound suction drainage group (P=0.001), and the duration of fever was longer in the former compared with the latter (P=0.008).
  
  
  CONCLUSIONS
  The data suggest that subcutaneous closed-suction drainage offers a reasonable alternative to closed-wound suction drainage in adolescents idiopathic scoliosis patients undergoing posterior instrumented spinal fusion.
authors: Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
authors: Jinqian
authors: J
authors: Liang
authors: Guixing
authors: G
authors: Qiu
authors: Sooyong
authors: S
authors: Chua
authors: Jianxiong
authors: J
authors: Shen
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012600:Scoliosis / Q000473:pathology / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation* / Q000379:methods*; D040521:Subcutaneous Tissue / Q000473:pathology / Q000601:surgery*; D013396:Suction / Q000379:methods