Title :
Preliminary evaluation of titanium-coated PEEK implants
Author :
Rust-Dawicki, Angela M. ; Cook, Stephen D.
Author_Institution :
Dept. of Orthopaedic Surg., Tulane Med. Sch., New Orleans, LA, USA
Abstract :
A series of 40 titanium-coated and uncoated polyetheretherketone (PEEK) cylindrical implants were placed in unicortical sites in femurs of 4 mongrel dogs. The implants were evaluated mechanically and histologically at periods of 4 and 8 weeks. Interface attachment strength was calculated for each specimen, as well as measurements of bone contact, porosity, bone ingrowth, inflammatory response and mode of failure. Statistical analysis revealed the uncoated implants had significantly higher shear strength values at 4 weeks, but no significant difference from the coated implants at 8 weeks. There was no significant increase in bone contact between 4 and 8 weeks for either the coated or uncoated specimens. At both 4 and 8 weeks, the coated specimens had significantly higher percentages of bone contact
Keywords :
bone; mechanical testing; plasma deposited coatings; polymers; porosity; prosthetics; shear strength; statistical analysis; titanium; 4 week; 8 week; Ti; Ti-coated PEEK implants; bone contact; bone ingrowth; coated implants; dental implants; failure mode; femurs; histological evaluation; inflammatory response; interface attachment strength; mechanical evaluation; mongrel dogs; porosity; shear strength; statistical analysis; uncoated polyetheretherketone cylindrical implants; unicortical sites; Animals; Bones; Coatings; Dentistry; Dogs; Implants; In vivo; Orthopedic surgery; Radiography; Surges;
Conference_Titel :
Biomedical Engineering Conference, 1995., Proceedings of the 1995 Fourteenth Southern
Conference_Location :
Shreveport, LA
Print_ISBN :
0-7803-2083-2
DOI :
10.1109/SBEC.1995.514436
