Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Shear strength of loaded porous-glassy-carbon/bone interface--an experimental study on rabbits.

Literature DB >> 3789487

Shear strength of loaded porous-glassy-carbon/bone interface--an experimental study on rabbits.

T Tarvainen, T Tunturi, J Rautavuori, P Törmälä, H Pätiälä, P Rokkanen.

Abstract

The aim of the study was to measure the shear strength of bone/porous-glassy-carbon interface in rabbit. Glassy carbon pellets were implanted into drill holes made through the medial articular surface of the proximal tibia of 15 rabbits. Shear strengths grew statistically significantly from 1 to 6 weeks and reached a maximum of 4.6 MN/m2. Microscopical examination of the sheared surfaces revealed that at 1 and 2 weeks the shearing occurred through the tissue surrounding the implant, and at 3, 6 and 12 weeks through the porous coating of the implant. To diminish the fragility of the porous coating, its porosity should be adjusted to 40%. Results of shear strength studies on current implant materials are reviewed.

Entities: Chemical Species

Mesh：

Substances：
Carbon

Year: 1986 PMID： 3789487 DOI： 10.1007/bf02367362

Source DB: PubMed Journal: Ann Biomed Eng ISSN： 0090-6964 Impact factor: 3.934

20 in total

1. Bone remodelling in the pores and around load bearing transchondral isoelastic porous-coated glassy carbon implants: experimental study in rabbits.

Authors: T Tarvainen; I Paronen; T Tunturi; J Rautavuori; P Tormala; H Patiala; P Rokkanen
Journal: J Mater Sci Mater Med Date: 1998-09 Impact factor: 3.896

1 in total

Shear strength of loaded porous-glassy-carbon/bone interface--an experimental study on rabbits.

1. [First experiences with a cementlen isoelastic total hip prosthesis].

2. Bone growth into porous high-density polyethylene.

3. Biomechanical investigations of bone-porous carbon and porous metal interfaces.

4. Potential of ceramic materials as permanently implantable skeletal prostheses.

5. Sintered fiber metal composites as a basis for attachment of implants to bone.

6. Surgical implants. The role of surface porosity in fixation to bone and acrylic.

7. Strength of the cement-bone interface.

8. The optimum pore size for the fixation of porous-surfaced metal implants by the ingrowth of bone.

9. Influence of a functional dynamic loading on bone ingrowth into surface pores of orthopedic implants.

10. Bone growth into glassy carbon implants. A rabbit experiment.

1. Bone remodelling in the pores and around load bearing transchondral isoelastic porous-coated glassy carbon implants: experimental study in rabbits.