Radiological Outcomes of Short Segment Pedicle Screw Fixation with Intermediate Screws at Fracture Level for Treating Thoracolumbar Fractures
Journal Title: Journal of Pakistan Orthopaedic Association - Year 2024, Vol 36, Issue 01
Abstract
Objective: To report radiological outcomes of short segment posterior fixation with screws in intermediate vertebra. Methods: This descriptive retrospective study was conducted in Nishtar Hospital Multan from January 2020 to July 2021. Patients with thoraco-lumbar spine (T10-L2 vertebra) burst fractures who underwent short segment posterior fixation with screws in fractured vertebra were included. Radiological outcomes in terms of Cobb angle and anterior vertebral height on pre-operative, immediate post-operative and 1-year follow-up x-rays were calculated and compared using paired sample t-test. Results: This study included 40 patients (32 males and 8 females) with a mean age of 33.47±13.33 years. Majority of cases involved fracture of D12 vertebra (45%). The mean preoperative kyphotic angle according to Cobb’s method was 24.58° ± 3.4° which showed significant improvement to 6.6° ± 1.33° following instrumentation (p<0.0001). The average preoperative vertebral height was 59.48% which improved significantly to 88.7% (p<0.0001). However, at final follow-up, there was loss of correction which was evident in terms of increased Cobb angle to 9.7° and loss of anterior vertebral height to 79%. The difference between pre-operative and follow-up measurements for both Cobb angle and anterior vertebral height was significant (p<0.0001). There were no incidence of implant failure or screw pull-out. Conclusion: The results of this study demonstrate short segment posterior spinal instrumentation with screws in fractured vertebra provide excellent correction of kyphotic deformity.
Authors and Affiliations
Muhammad Majid Raza1, Irfan Qadir2, Mazhar Ali3, Saeed Ahmad4, Muhammad Khalid Chishti5
Keywords
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