论文信息 - Improvement of an ultrasonically controlled growing rod system for spinal implants

Improvement of an ultrasonically controlled growing rod system for spinal implants

To treat scoliosis, a surgery is conducted where a special metal rod is attached inside the human body. Surgery requiring an incision is performed regularly; thus, patients face the risk of infection and the discomfort of surgery multiple times. To solve this problem, a rod system that expands and contracts inside the human body has been developed. However, it is not a structure suitable for being implanted in the human body. The purpose of this research is to develop a new rod system that solves this problem. In this paper, the structure of the new rod suitable for being implanted was shown, and the analysis results using ANSYS were shown. In addition, the results of a verification experiment using a laser displacement meter were shown, indicating the superiority of the new rod.

[1] Luca Proietti,et al. Minimally invasive spine stabilisation with long implants , 2009, European Spine Journal.

[2] Y. Nohara. The History & State of Art in the Treatment of Scoliosis , 2012 .

[3] Todd A. Johnson,et al. Identification of a Susceptibility Locus for Severe Adolescent Idiopathic Scoliosis on Chromosome 17q24.3 , 2013, PloS one.

[4] V. Sakellariou,et al. Postoperative spinal infection mimicking systemic vasculitis with titanium-spinal implants , 2011, Scoliosis.

[5] T. Ishii,et al. Development of an ultrasonic controlled growing rod system for spinal implants , 2019, Advances in Mechanism and Machine Science.

[6] Katsushi Takeshita,et al. Surgical treatment of scoliosis: a review of techniques currently applied , 2008, Scoliosis.

[7] M. Scerrati,et al. Deep spinal infection in instrumented spinal surgery: diagnostic factors and therapy. , 2017, Il Giornale di chirurgia.

[8] V. Patel,et al. Risk factors for rod fracture after posterior correction of adult spinal deformity with osteotomy: a retrospective case-series , 2015, Scoliosis.

[9] Hidetsugu Terada,et al. Development of a Vibration Exciter for Ultrasonic Controlled Growing Rod System at Minimally Invasive Surgery , 2019, 2019 12th International Conference on Human System Interaction (HSI).