Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (35): 5671-5675.doi: 10.3969/j.issn.2095-4344.2014.35.017

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Hollow pedicle screw fixation with minimal access-posterior lumbar interbody fusion for lumbar disc herniation

Li Cheng-guo1, 2, He Er-xing1, Ling Qin-jie1   

  1. 1Department of Orthopedics, First Affiliated Hospital, Guangzhou Medical University, Guangzhou Institute of Orthopedics, Guangzhou 510120, Guangdong Province, China
    2Department of Orthopedics, Fifth Affiliated Hospital (Conghua Municipal Central Hospital), Southern Medical University, Conghua 510900, Guangdong Province, China
  • Revised:2014-07-12 Online:2014-08-27 Published:2014-08-27
  • Contact: He Er-xing, Master, Chief physician, Department of Orthopedics, First Affiliated Hospital, Guangzhou Medical University, Guangzhou Institute of Orthopedics, Guangzhou 510120, Guangdong Province, China
  • About author:Li Cheng-guo, Attending physician, Department of Orthopedics, First Affiliated Hospital, Guangzhou Medical University, Guangzhou Institute of Orthopedics, Guangzhou 510120, Guangdong Province, China; Department of Orthopedics, Fifth Affiliated Hospital (Conghua Municipal Central Hospital), Southern Medical University, Conghua 510900, Guangdong Province, China

Abstract:

BACKGROUND: The percutaneous pedicle screw technique effectively reduces the excessive injury of screw placement on paraspinal muscles, and promotes the recovery of the function of low back muscle after surgery. Minimally invasive technique avoids some disadvantages such as large surgical trauma and more bleeding. Folding U-shaped hollow pedicle screw has hollow design and good distraction effect. After fixation, stress intensity, compression time, bending stiffness and torsional mechanical properties have been verified in the clinic.
OBJECTIVE: To observe the clinical effect of folding U-shaped hollow pedicle screw fixation combined with minimal access-posterior lumbar interbody fusion for single-level lumbar disc herniation.
METHODS: Between January and December 2012, folding U-shaped hollow pedicle screw fixation with minimal access-posterior lumbar interbody fusion was performed in 30 patients with lumbar disc herniation. The mean follow-up period was 12 months. Lumbago Visual Analog Scale, Oswestry Disability Index and imaging indicators were utilized to evaluate clinical therapeutic effects.
RESULTS AND CONCLUSION: Preoperative Visual Analog Scale pain score and Oswestry Disability Index for all patients were 7.3±0.7 and 71.4±7.1, 2.9±0.7 and 29.8±3.6 at 3 days after surgery, showing significant differences. At 12 months, no significant difference in Visual Analog Scale pain score and Oswestry Disability 
Index was detected. Postoperative short-period follow-up demonstrated that all lumbar interbody fusion was achieved in one year. There was no complication such as implant failure or infection. These findings indicated that folding U-shaped hollow pedicle screw fixation with minimal access-posterior lumbar interbody fusion for lumbar disc herniation showed good clinical therapeutic effects, high rate of interbody fusion and a low rate of complications and small trauma. 


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


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Key words: intervertebral disk displacement, internal fixators, surgical procedures, minimally invasive, pain

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