Clinical comparative analysis of two different post-surgery drainages in idiopathic scoliosis patients

English Keywords:Idiopathic scoliosis  Subcutaneous closed suction drainage  Submuscular closed suction drainage  Posterior correction

English Abstract:

  【Abstract】 Objectives: To observe and compare the results between subcutaneous closed suction drainage and submuscular closed suction drainage after posterior correction in idiopathic scoliosis. Methods: From February 2005 to September 2007, a total of 89 patients undergoing posterior scoliosis correction and allograft and instrument fusion in our hospital was studied retrospectively. The patients were classified into two groups: group A: subcutaneous closed suction drainage(n=42), and group B: submuscular closed suction drainage(n=47). To statistically analyze groups′perioperative data of the two groups, including demographics(age, gender, height, weight and BMI), preoperative main Cobb angle, intraoperative data(operating time, estimated blood loss, autologous blood transfusion, allogenic blood transfusion and levels fused), and postoperative drainage, blood transfusion, duration of fever, peak value of temperature in 72 hours, drainage duration, grades of healing incision and so on. Results: There was no significant difference with respect to the demographics, preoperative major curve Cobb angle, and intraoperative data between the two groups(P>0.05). The average drainage volume of group A was 26.67±26.61ml(0-90ml). The average blood transfusion was 0.76±1.34U(0-5U). The average duration of fever was 2.14±1.39d(0-6d). The peak value of temperature in 72 hours was 37.95±0.53℃(37.3-39.3℃). The average drainage duration was 1.86±0.36d(1-2d). While the average drainage volume of group B was 1343.13±555.41ml(700-2350ml). The average blood transfusion was 2.44±2.00U(0-5.5U). The average duration of fever was 1.75±1.24d(0-4d). The peak value of temperature in 72 hours was 37.82±0.44℃(37.3-38.7℃). The average drainage duration was 5.13±1.20d(3-7d). The differences in postoperative drainage volume, drainage duration and blood transfusion between group A and group B were statistically significant(P<0.05). However, there was no statistical significance with respect to the average duration of fever, peak value of temperature in 72 hours and grades of healing of incision between the two groups(P>0.05), and no wound infection was found. Conclusions: Compared with submuscular closed suction drainage, subcutaneous closed suction drainage after posterior correction in idiopathic scoliosis patients can reduce postoperative drainage volume, drainage duration and blood transfusion, while not increase the wound infection, which can be used in clinical practice.