TY - GEN
T1 - Modelling the shape memory properties of 4D printed polylactic acid (PLA) for application of disk spacer in minimally invasive spinal fusion
AU - Alief, Nindya Aprilia
AU - Supriadi, Sugeng
AU - Whulanza, Yudan
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/4/9
Y1 - 2019/4/9
N2 - One of surgical treatments for relieving low back pain, which is caused by a functional degradation of lumbar disc, can be done by spinal fusion such as Minimally Invasive Transforaminal Lumbar Interbody Fusion (MIx-TLIF) technique. This technique provides stabilization for the spinal vertebrae and the disc or shock absorber between vertebrae. TLIF surgery is done by inserting interbody spacer and bone graft to the lumbar disc through a minimum incision. Here, we fabricated the disk spacer using 4D printing technology. This new technology uses 3D printing to print parts with the ability to change shape over time when exposed to different external stimuli i.e. heat. In order to obtain the right shape transformation, the expansion and thermal distribution of 4D printed polylactic acid model were investigated. It is indicated that specific PLA structure possesses thermal shape memory behavior that can be thermomechanically trained into temporary shape and return to their permanent shape when heated.
AB - One of surgical treatments for relieving low back pain, which is caused by a functional degradation of lumbar disc, can be done by spinal fusion such as Minimally Invasive Transforaminal Lumbar Interbody Fusion (MIx-TLIF) technique. This technique provides stabilization for the spinal vertebrae and the disc or shock absorber between vertebrae. TLIF surgery is done by inserting interbody spacer and bone graft to the lumbar disc through a minimum incision. Here, we fabricated the disk spacer using 4D printing technology. This new technology uses 3D printing to print parts with the ability to change shape over time when exposed to different external stimuli i.e. heat. In order to obtain the right shape transformation, the expansion and thermal distribution of 4D printed polylactic acid model were investigated. It is indicated that specific PLA structure possesses thermal shape memory behavior that can be thermomechanically trained into temporary shape and return to their permanent shape when heated.
UR - http://www.scopus.com/inward/record.url?scp=85064818665&partnerID=8YFLogxK
U2 - 10.1063/1.5096673
DO - 10.1063/1.5096673
M3 - Conference contribution
AN - SCOPUS:85064818665
T3 - AIP Conference Proceedings
BT - 3rd Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices
A2 - Wulan, Praswasti P.D.K.
A2 - Gozan, Misri
A2 - Astutiningsih, Sotya
A2 - Ramahdita, Ghiska
A2 - Dhelika, Radon
A2 - Kreshanti, Prasetyanugraheni
PB - American Institute of Physics Inc.
T2 - 3rd International Symposium of Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices, ISBE 2018
Y2 - 6 August 2018 through 8 August 2018
ER -