Lumbar segment disc prosthesis (S1-L5, L5-L4) modeled by Dr. Zahaf samir

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Abstract: The intervertebral disc plays an important role in resisting and transmitting load across a motion segment while maintaining disc height and stability. The disc commonly degenerates over time due to natural aging which can be related to lower back pain. In the event that conservative treatment fails, surgical intervention may be indicated. There are two common surgical treatments for degenerative disc disease (DDD): arthrodesis (fusion) and arthroplasty (disc replacement). Spinal fusion is known to result in some loss of motion, increased stiffness, and may lead to adjacent level degeneration. Long term results of lumbar arthrodesis are poor, and the incidence of complications following arthrodesis has been reported to range from 6% to 58%. On the other hand, total disc replacement (TDR) used as an alternative surgical treatment for DDD is believed to be capable of preserving motion and restoring the normal kinematics of the spine.(PDF) Study and Analysis of Mechanical Behavior between Rigid and Dynamic Fixation Systems Analyzed by the Finite Element Method. Available from: References:1/https://www.researchgate.net/publication/318676629_Study_and_Analysis_of_Mechanical_Behavior_between_Rigid_and_Dynamic_Fixation_Systems_Analyzed_by_the_Finite_Element_Method.2/https://www.researchgate.net/publication/353861751_Biomechanical_comparison_of_three_total_artificial_discs_Sb-charite_iiiR_prodisc lR_and_maverickR_reinforced_by_a_posterior_fixation_system_in_the_spinal_column_A_three-dimensional_finite_element_analysis.Email : samir.zahaf@univ-dbkm.dz