Finite element study on whether posterior upper wall fracture is a risk factor for the failure of short-segment pedicle screw fixation in the treatment of L1 burst fracture

Surgical treatment is often required for thoracolumbar burst factures. The typical imaging features of burst fractures include compression of the anterior column and comminution of the middle column (namely, burst facture of the posterior wall of VB), and bone fragments retropulsed into the vertebral canal (VC). In severe cases, the interpedicular distance (IPD) may increase (such as accompanied pedicle fracture) [1]. Posterior short-segment conventional pedicle screw fixation for thoracolumbar burst fractures has been widely used clinically [2-4], but in type A fractures [5] with loading shear classification (LSC) LSC [6] ≥ 7, complications including screw breakage and/or loosening of the screw rod restricted the promotion of this method [4, 7, 8].

Source: Injury - August 18, 2021 Category: Orthopaedics Authors: Chunyang Xia, Sheng Yang, Jifeng Liu, Jianmin Lu, Depeng Shang, Dapeng Fu, Zhenhua Zhao, Xiahua Wang Source Type: research