Title :
Analysis of pellet implant for cranioplasty
Author :
Park, Hun K. ; Dujovny, Manuel ; Lee, Jong B. ; Diaz, Fernando G.
Author_Institution :
Dept. of Neurosurg., Wayne State Univ., Detroit, MI, USA
Abstract :
Cranioplasty for large cranial defects greater than 10 cm2 is a still challenge to neurosurgeons because of insufficient materials and strength. Polymethylmethacrylate (PMMA) generates chemical heat and fumes that cause tissue necrosis and delayed bone growth. Hydroxyapatite (HA) is not recommended for larger cranial defects. Large defects may not provide appropriate underlying cerebral protection from direct trauma even after cranioplasty. In this study, we investigated cranial prosthesis with pellet structures that facilitate stress redistribution upon impact
Keywords :
biomechanics; biomedical materials; brain; prosthetics; surgery; PMMA; cerebral protection; chemical heat; cranial prosthesis; cranioplasty; delayed bone growth; direct trauma; fumes; hydroxyapatite; impact; large cranial defects; larger cranial defects; neurosurgeons; pellet implant; pellet structures; polymethylmethacrylate; stress redistribution; tissue necrosis; Biological materials; Bones; Chemicals; Cranial; Delay; Implants; Neurosurgery; Prosthetics; Protection; Stress;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.901562
