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Pyrocarbon in Orthopedics
Pyrocarbon Implant Characteristics
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Solid carbon surface - not carbon fiber |
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Biochemically inert |
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Highly wear resistant |
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Extremely low coefficient of friction |
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30-year history in millions of cardiac valves |
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Pyrocarbon is similar to cortical bone, resulting in reduced chances of stress shielding |
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Formed by Chemical Vapor Deposition |
Clinical Citations
The results of a long-term study (Source: J Bone Joint Surg Am, 2003, Oct;85-A(10):1869-78) on silicone finger joint implants (14 years follow-up) showed that the impressive results at the short-term follow-up with respect to the arc of motion could not be maintained at the long-term follow-up. Complication rates were high: 63% were broken and 22% were severely deformed. Patients were satisfied with the function of their finger in 38% of the hands and only 27% of the hands were pain-free at the time of final follow-up.
(Source: Health Technology Literature Review, March 2004, Ontario)
Pyrocarbon Orthopedic Implants
Pyrocarbon implants have no mechanical or chemical fixation to bone. They are stabilized by press-fitting the anatomically designed stems into the medullary canal. After initial insertion, appositional bone growth occurs around the prosthetic stem when stabilized mechanically by the surrounding cortical bone. Final implant stabilization will generally occur at 6 to 24 months post-surgery due to constant appositional bone growth.
(Source: Letters to the Editor regarding: Journal of Hand Surgery, Volume 3-A, Number 1, January 2006 Ossoeintegration article. Author Drs. R. Beckenbaugh, J. Klawitter and S. Cook)
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Carpometacarpal Implant (CMI) |
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Radial Head System (RHS)
Not available in US
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Pyrocarbon Interposition Implant (PI2)
Not available in US
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Scaphoid Trapezium Pyrocarbon Implant (STPI)
Not available in US |
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Resurfacing Capitate Pyrocarbon Implant (RCPI)
Not available in US |
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Adaptive Proximal Scaphoid Implant (APSI)
Not available in US |
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