Zhongguo gu shang = China journal of orthopaedics and traumatology
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To explore clinical efficacy of percutaneous endoscopic lumbar discectomy through two different approaches in treating upper lumbar disc herniation. ⋯ Both of two surgical approach could achieve satisfactory efficacy in treating upper lumbar disc herniation, PETD is more suitable for central herniation, paracentric herniation and patients with mild displacement, PEID has advantage on prolapse free type protrusion.
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To evaluate accuracy and safety of individualized 3D printing guided template for thoracolumbar pedicle screw placement in patients with ankylosing spondylitis. ⋯ The personalized guide template assisted the thoracolumbar fixation designed by 3D printing could significantly improve safety, accuracy and efficiency of surgery, especially suitable for thoracolumbar vertebral bodies requiring posterior pedicle screw fixation for fracture or dislocation with AS.