Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (28): 4479-4484.doi: 10.3969/j.issn.2095-4344.1469

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Short-segment percutaneous pedicle screw instrumentation for the treatment of thoracolumbar fractures: bilateral fracture level and cross-fracture level

Wang Jinning, Song Dawei, Qiao Yusen, Yang Yan, Zou Jun, Zhang Linlin, Geng Dechun, Yang Huilin, Wu Guizhong, Ni Li
  

  1. Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou 215006, Jiangsu Province, China
  • Online:2019-10-08 Published:2019-10-08
  • Contact: Ni Li, Doctoral candidate, Assistant researcher, Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou 215006, Jiangsu Province, China Wu Guizhong, Master, Attending surgeon, Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou 215006, Jiangsu Province, China
  • About author:Wang Jinning, Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou 215006, Jiangsu Province, China

Abstract:

BACKGROUND: At present, the clinical follow-up data of posterior short-segment percutaneous pedicle screw for thoracolumbar fractures are limited, and there is still some controversy about whether the injured vertebra should be placed with screw.
OBJECTIVE: To investigate the short-term effectiveness of short-segment percutaneous pedicle screw instrumentation for the treatment of thoracolumbar fractures.
METHODS: Totally 27 patients, who suffered from thoracolumbar fractures and underwent short-segment percutaneous pedicle screw instrumentation, were retrospectively analyzed. These patients were divided into two groups: bilateral fracture level screw group and cross-fracture level instrumentation group. Informed consent was obtained from all patients. This study was approved by the Hospital Ethics Committee. Visual analogue scale score and Oswestry disability index were used to access clinical outcomes. Relative fracture-level vertebral body height and Cobb angle were used to access the reduction situation of fractured vertebrae.
RESULTS AND CONCLUSION: (1) All surgeries were completed successfully. Patients in the bilateral fracture level screw group were followed up for 8-20 months. Patients in the cross-fracture level instrumentation group were followed up for 5-17 months. No complications such as internal fixation fracture or reduction loss were observed. (2) Visual analogue scale score and Oswestry disability index were significantly improved after operation in both groups (P < 0.05). No significant difference was found between the two groups (P > 0.05). (3) Relative fracture-level vertebral body height and Cobb angle were improved after operation when compared to pre-operative data of both groups (P < 0.05). The difference between groups presented no statistically difference (P > 0.05). (4) During short-term follow-up, the short-term effectiveness of short-segment percutaneous pedicle screw instrumentation is proven to have satisfactory effect; no significant difference was observed between bilateral fracture level screw and cross-fracture level instrumentation.

Key words: thoracolumbar fracture, percutaneous pedicle screw instrumentation, short-segment spinal instrumentation, trans-traumatic vertebral screw placement, trans-traumatic vertebral fixation, relative height of anterior vertebral margin, Cobb angle

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