The application of self-made C-shaped spinal fracture reductor in posterior surgery for thoracolumbar burst fracture

English Keywords:Thoracolumbar burst fracture  Reduction  C-shaped spinal fracture reductor  Square redactor

English Abstract:

  【Abstract】 Objectives: To evaluate the application of self-made C-shaped spinal fracture reductor in posterior surgery for thoracolumbar burst fracture. Methods: 78 hospitalized patients with thoracolumbar burst fractures and meeting criteria(single level involved, spinal canal encroachment and stenosis, neurological deficit) were recruited and divided into test group and control group.　All patients underwent posterior laminectomy and anterior decompression, fixation screw and rod system. A self-made C-shaped spinal fracture reductor was applied to reduce the fracture fragments in test group, while in control group, traditional square reductor was applied. Cobb angle, the height of anterior and posterior of the injured vertebrae, the section area of the injured spinal canal and spinal neurological function were reviewed and compared in two groups. Results: 34 cases in test group and 33 cases in control group were followed up, with an average follow-up of 7.9 months and 7.8 months for test group and control group respectively. The improvement of spinal kyphosis, the recovery rate of the vertebra height, ASIA score, Frankel grade of median recovery between test and control group was 15.32°±5.81° and 17.58°±7.33°,　(67.32±11.74)% and (66.67±10.78)%,　(54.68±20.13)% and (45.53±32.99)%, 34.53±19.81 and 26.97±12.57, 1.0(1.0, 2.0) and 1.0(1.0, 1.0) respectively, which showed no statistical significance(P＞0.05). The improvement rate of spinal canal cross-sectional area was (85.97±8.74)% and (76.30±6.64)% respectively(P＜0.05). Conclusions: Self-made C-shaped spinal fracture reductor can be used to reduce the fracture fragment, which can recover the volume of spine canal and is superior than the conventional square reductor.