Desenvolvimento de um protótipo de prótese de disco intervertebral para a coluna vertebral cervical de cães

Ciencia Rural

article

Paulo Vinícius Tertuliano Marinho¹  Ana Paula Macedo²  Thiago André Salvitti de Sá Rocha³  Cláudio Pereira de Sampaio⁴  Carolina Camargo Zani Marinho¹  Antônio Carlos Shimano²  Mônica Vicky Bahr Arias⁴ 

[1] Instituto Federal de Educação;Universidade de São Paulo;Universidade Federal de Jataí;Universidade Estadual de Londrina

关键词: spine;    arthroplasty;    prothesis design;    veterinary surgery;   

DOI  :  10.1590/0103-8478cr20220027

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Cervical arthroplasty with disc prosthesis has been proposed as a treatment option for dogs with Cervical Spondylomyelopathy. The present study developed a novel vertebral disc prosthesis for dogs. Sixteen Functional Spinal Units (C5-C6) were collected from dog cadavers with body weights ranging between 25 and 35 kg, and their vertebral measurements were used to design a prosthetic disc. The sizing of the prosthesis was performed based on the averages of the measurements of width, height, and length of the vertebral bodies from C5-C6 of all specimens. The prosthesis was developed using the Rhinoceros 3D® and SolidWorks® programs, and 3D prototyping was carried out to define the best design. The developed prosthesis consisted of two independent parts that are fixed to the cranial and caudal vertebral bodies, in the intervertebral space, and fitted together by metal-to-metal surfaces capable of moving in the lateral, ventral, and dorsal directions. Each part of the prosthesis is angled in two portions: vertically, in the intervertebral space, and horizontally, in contact with the ventral surface of the vertebral bodies, both of which are fixed by means of monocortical locking screws. The design of the developed prototype allowed a good fit in the intervertebral space between C4-C5, C5-C6, and C6-C7.

【 授权许可】

Unknown