A novel C2 prosthesis (cage/plate construct) combining a titanium mesh cage with bilateral C1 shelves and a T-plate has been used successfully in 18 patients.
The torsional stiffness of the prosthesis bone construct was assessed by applying torsional displacement at two degrees per second.
The problem of finding a more pleasing prosthesis was discussed with our limb maker and, after several attempts, a very neat, light, and functional prosthesis was constructed from laminated plastic material reinforced with glass cloth.
Three-dimensional finite element models for a femur implanted with a cemented prosthesis were constructed with a representative physiological loading condition.
These data are sent over the internet and the prosthesis is constructed using visualization, computer-aided design and manufacturing tools.
Realistic, robust analysis of bone-prosthesis constructs need to look beyond initial post-implantation mechanics provided by static finite element (FE) simulation.
Cox regression analyses with prosthesis brand as stratification factor were used to construct prosthesis-specific survival curves adjusted for sex, age (< 60, 60 69, 70 79, > 79), diagnosis (osteoarthritis, other), use of systemic antibiotic prophylaxis (no, yes) and cement brand (8 brands).
Thousand hundred and ninety-three prostheses were constructed (42% ocular, 31% auricular, 13% orbital, 12% nasal, 1% composite, more than one facial prosthesis).
Maxillofacial prostheses are constructed by maxillofacial prosthetists and technologists (MPTs), as an alternative treatment when maxillofacial defects cannot be surgically fulfilled.
While Kaplan-Meier survival curves illustrate crude or unadjusted differences in implant survival, results from Cox regression analyses can be used to construct prosthesis-specific survival curves with adjustment for relevant factors such as age and sex.
