Three-Dimensionale Printed Individualized Guiding Templates for Surgical Correction of Severe hyperkyphosis: Outcomes of 7 Cases

Yuanhao Peng, He Zhu, Kang Lee, Yuning Wang, Chen Luo, Weijun Zeng,Huanwen Ding, Han Yan

Research Square (Research Square)(2023)

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摘要
Abstract Objective: Introduction and Evaluation of the Effects of 3D Technology-Assisted Transforaminal Spinal Osteotomy on Spinal Orthopedic Rate, Nail Placement Accuracy, and Healing Methods: This study conducted a retrospective review of the treatment outcomes of seven patients (four males and three females), aged 19-59 years, who underwent transforaminal osteotomy between December 2011 and March 2023. Digital Computer-Aided Design (CAD) technology was utilized for preoperative surgical planning and precise intraoperative guidance of the osteotomy procedure using a guide plate. Postoperative evaluation included the assessment of the kyphosis Cobb angle, spinal correction rate, nail placement accuracy, and the administration of the Oswestry Dysfunction Index questionnaire. Results: Study included seven patients (4 males, 3 females) with an average age of 41.0 years. Average follow-up period was 38.2 months (range: 9-54 months). All patients achieved satisfactory correction with an average correction rate of 95.11%. Surgical outcomes showed an average surgical time of 402.42 minutes, average blood loss of 984.83 milliliters, and average hospital stay of 12.21 days. Out of 70 implanted screws, 97.1% were classified as Grade A or B, indicating satisfactory screw position. Postoperative X-rays demonstrated significant correction of kyphotic deformity (average correction angle: 44.24°, average correction rate: 95.09%). Conclusions: The use of 3D digital technology for preoperative planning, simulation of surgery, and personalized design of 3D printing guide plates in spinal osteotomy provides improved postoperative orthopedics, enhanced accuracy of nail placement, and improved quality of life for patients with severe kyphosis.
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severe hyperkyphosis,surgical correction,three-dimensionale
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