Short-segment Pedicle Instrumentation Combined With Calcium Sulfate Cement Grafting In Treatment Of Thoracolumbar Fracture (Denis Scale B)

Objective To study the advantages and clinical results of short-segment pedicleinstrumentation combined with calcium sulfate cement grafting in treatment of newthoracolumbar spine fracture(Denis scale B).Methods Fifty-two patients with a single-level thoracolumbar fracture fortreatment with short-segment pedicle screw fixation were enrolled in the study.Fractures in group1patients were reinforced with transpedicular calcium sulfatecement(TPCSC; n=22), and fractures in group2patients were augmented withtranspedicular cancellous bone (TPCB; n=30). All patients were followed-up at least9months after surgery. Radiographic parameters and clinical outcomes werecompared between the2groups.Results The2groups were similar in age,sex,fracture,preoperative neurologic statusdistribution.The TPCB group had a longer period of follow-up(24.23+4.09vs15.50+5.17months, P＜0.001).Blood loss and operation time were less in TPCSCgroup (312.72+98.27vs594.33+178.14ml,P <0.001and90.63+17.80134.33+16.95min P＜0.001). Radiographic parameters and clinical outcomes were similar inboth groups. The TPCSC group had no surgical complication, but the TPCB grouprevealed1cases with wound infection after surgery.Conclusion TPCSC grafting after posterior short-segment instrumentation is areliable surgical method for correcting and maintaining sagittal alignment andvertebral body height in thoracolumbar fractures.