Pedicle Screw‐Rod Fixation of the Canine Lumbosacral Junction

Abstract

PSRF of the LSJ of large breed dogs is technically possible. Improvements to the surgical technique to induce spinal fusion and assessment in a larger sample size are required before it can be recommended.

Cervical stabilization with polyaxial pedicle screw and rod construct in horses: A proof of concept study

“…With proper training and thorough knowledge of the regional anatomy, these implants can be applied consistently and easily in horses for cervical stabilization. Presently, pedicle screw and rod systems are used routinely in human spinal surgery and are recently having a resurgence of use in veterinary medicine . The polyaxial screw head feature was essential for cervical stabilization in the horse when this technique was used because of the variable shape of the ventral aspect of the cervical vertebral bodies.…”

Bir Köpekte Travmatik Torakal İnstabilitenin Pediküllü Vida Rod Fiksasyon Sistemiyle Tedavisi

“…The aim of the PSRFS is to improve deformity and stabilize the spine in its natural position until fusion has occurred and prevent further degenerative changes [7,9] . In veterinary literatures, PSRFS has been only used to stabilize lumbosacral region after laminectomy for treatment of degenerative lumbosacral stenosis in dogs [10,11,14,15] . Furthermore, the system was used to investigate fusion in lumbar vertebrae [16] .…”

“…This is the main problem for safe screw insertions and prediction of the screw dimensions [17] . Smolders et all indicated that CTand/or MRI-based evaluation of the vertebral dimensions of both L7 and S1 is necessary for optimal screw insertion corridors for individual dogs [15] . Before the surgery CT images had been evaluated for pedicle dimensions to predict the dimension of screws dimensions.…”

Uso do Clamp and Rod Internal Fixation pedicular na estabilização da coluna lombossacra em felino: relato de caso

“…No caso relatado, os parafusos foram aplicados exclusivamente nos pedículos vertebrais, no entanto poderia ter sido feita a aplicação dos parafusos envolvendo especificamente os pedículos e os corpos vertebrais de L7 e do sacro, o que possivelmente confere maior rigidez e resistência ao sistema, conforme relataram Meij et al (2007), quando utilizaram parafusos pediculares na coluna lombossacra. Segundo Smolders et al (2012), uma fixação lombossacra em corredores seguros deve ser realizada dorsocaudolateralmente para ventrocraniomedialmente, ou seja, proveniente da cortical dorsal da lâmina até a cortical dorsal do corpo vertebral, sem perfurar a porção cortical ventral assim como as paredes medial e lateral do pedículo. Além disso, sugere-se a perfuração de 20-50% de todo o comprimento do parafuso (Smolders et al, 2012).…”

“…Segundo Smolders et al (2012), uma fixação lombossacra em corredores seguros deve ser realizada dorsocaudolateralmente para ventrocraniomedialmente, ou seja, proveniente da cortical dorsal da lâmina até a cortical dorsal do corpo vertebral, sem perfurar a porção cortical ventral assim como as paredes medial e lateral do pedículo. Além disso, sugere-se a perfuração de 20-50% de todo o comprimento do parafuso (Smolders et al, 2012).…”