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The Design Of An Optimized Patient-Specific In Vivo Spinal Fusion Cage Using Additive Manufacturing, Gorman Donnelly
The Design Of An Optimized Patient-Specific In Vivo Spinal Fusion Cage Using Additive Manufacturing, Gorman Donnelly
Honors Theses
This project involved the design of an all-in-one patient-specific lumbar spinal fusion cage using Direct Metal Laser Sintering (DMLS) manufacturing. The cage is zero-profile and does not need the use of supplemental fixation. It was manufactured out of the titanium alloy Ti 6Al-4V using a DMLS rapid prototyping machine from a third party company. The endplates of the cage are patient-specific allowing for a larger surface contact area between the cage and the vertebral bodies than most cages on the market. This fosters a more successful fusion as well as decreases surgery time, effectively decreasing recovery time. Different porosity variations …
The Optimization Of Porosity And Pore Patterning For Patient-Specific Ti-6 Al-4v Femur Implants, Stephen Paolicelli
The Optimization Of Porosity And Pore Patterning For Patient-Specific Ti-6 Al-4v Femur Implants, Stephen Paolicelli
Honors Theses
Metastatic bone cancer often arises in the long bones of the body. Taking a patient specific approach by utilizing a customized implant is a superior method of treatment compared to today’s solutions, which often includes amputation. A titanium-alloy femur implant has been optimized by varying pore size, pore pattern, and porosity in order to maximize osseointegration. By maximizing osseointegration, the implant will remain firmly in place for a longer period of time because bone will grow throughout the implant, securing it. In addition, it is important for the bone to behave mechanically like bone. This requires the global elastic modulus …