Minimally invasive transforaminal and anterior lumbar interbody fusion surgery at level L5-S1

Autor: João Pedro Maia Gonçalves, Hipólito Sousa, Luísa Costa Sousa, M.P.L. Parente, Renato Natal Jorge, D. S. Fidalgo, Bruno Areias
Přispěvatelé: Faculdade de Engenharia
Rok vydání: 2020
Předmět:
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
ISSN: 1476-8259
Popis: This paper presents a finite element analysis to investigate the biomechanical changes caused by transforaminal (TLIF) and anterior lumbar interbody fusion (ALIF) at the L5-S1 level, applying two different implants: T_PAL (TLIF) and SynFix (ALIF). The main objective is to determine which one is more stable for patients. Numerical simulations of segmental motion show that, in the early postoperative phase, displacements and rotation angles obtained in ALIF are greater than the corresponding ones obtained in TLIF, as well as the principal stress values on the ligaments. So, TLIF performed with T_PAL is more stable than ALIF, especially during the recovery phase.
Databáze: OpenAIRE