Abstract
An examination of femoral bone-prosthesis interface behavior under different load types is undertaken using finite-element analysis. Three-dimensional finite-element models are made of two designs of hip prostheses after implantation in a femur. Femoral geometry was determined by computed tomography scans. The models were loaded in one-legged stance and stairclimbing configurations. The implants were modeled as both smooth surfaced and porous coated. The amount of contact and the relative motion between bone and implant were calculated. It is shown that torsional loads such as occur during stairclimbing contribute to larger amounts of implant micromotion than does stance loading. Contact at the bone-prosthesis interface is more dependent on load type than on implant geometry or surface coating type.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 839-847 |
| Number of pages | 9 |
| Journal | The Journal of Arthroplasty |
| Volume | 10 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jan 1 1995 |
| Externally published | Yes |
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Keywords
- contact
- finite-element analysis
- prosthesis
- stability
- total hip arthroplasty
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
Cite this
Effect of porous coating and loading conditions on total hip femoral stem stability. / Biegler, Frances B.; Reuben, Jeffrey D.; Harrigan, Timothy; Hou, Fu J.; Akin, John E.
In: The Journal of Arthroplasty, Vol. 10, No. 6, 01.01.1995, p. 839-847.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of porous coating and loading conditions on total hip femoral stem stability
AU - Biegler, Frances B.
AU - Reuben, Jeffrey D.
AU - Harrigan, Timothy
AU - Hou, Fu J.
AU - Akin, John E.
PY - 1995/1/1
Y1 - 1995/1/1
N2 - An examination of femoral bone-prosthesis interface behavior under different load types is undertaken using finite-element analysis. Three-dimensional finite-element models are made of two designs of hip prostheses after implantation in a femur. Femoral geometry was determined by computed tomography scans. The models were loaded in one-legged stance and stairclimbing configurations. The implants were modeled as both smooth surfaced and porous coated. The amount of contact and the relative motion between bone and implant were calculated. It is shown that torsional loads such as occur during stairclimbing contribute to larger amounts of implant micromotion than does stance loading. Contact at the bone-prosthesis interface is more dependent on load type than on implant geometry or surface coating type.
AB - An examination of femoral bone-prosthesis interface behavior under different load types is undertaken using finite-element analysis. Three-dimensional finite-element models are made of two designs of hip prostheses after implantation in a femur. Femoral geometry was determined by computed tomography scans. The models were loaded in one-legged stance and stairclimbing configurations. The implants were modeled as both smooth surfaced and porous coated. The amount of contact and the relative motion between bone and implant were calculated. It is shown that torsional loads such as occur during stairclimbing contribute to larger amounts of implant micromotion than does stance loading. Contact at the bone-prosthesis interface is more dependent on load type than on implant geometry or surface coating type.
KW - contact
KW - finite-element analysis
KW - prosthesis
KW - stability
KW - total hip arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=0029559758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029559758&partnerID=8YFLogxK
U2 - 10.1016/S0883-5403(05)80084-1
DO - 10.1016/S0883-5403(05)80084-1
M3 - Article
C2 - 8749770
AN - SCOPUS:0029559758
VL - 10
SP - 839
EP - 847
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
SN - 0883-5403
IS - 6
ER -