PMID- 11222897
OWN - NLM
STAT- MEDLINE
DCOM- 20010517
LR  - 20131121
IS  - 0883-5403 (Print)
IS  - 0883-5403 (Linking)
VI  - 16
IP  - 2
DP  - 2001 Feb
TI  - The effect of femoral prosthesis design on cement strain in cemented total hip 
      arthroplasty.
PG  - 216-24
AB  - Finite element studies show that the highest cement stresses are located at the 
      most proximal and distal ends of the prosthesis. In vitro biomechanical and 
      histologic analyses of autopsy-retrieved cemented femoral components show these 
      areas to be associated with cement-prosthesis debonding. In this study, cement 
      strains were measured in 2 geometrically different femoral stems in paired 
      cadaver femora: A straight, collared, moderately tapered stem (Centralign) was 
      compared with an anatomically curved, collarless, dramatically tapered stem 
      (Scientific Hip Prosthesis [SHP]). Results showed that the maximum strain and the 
      overall strain profile differed between the 2 stems. The Centralign had peak 
      strains located at the most proximal gauge positions, whereas the peak strains of 
      the SHP were located around the middle of the femoral stem. Minimization of 
      cement strain, especially at the crucial proximal and distal areas of the stem, 
      by altering component design may be able to reduce cement-prosthesis debonding 
      and improve clinical results.
FAU - Peters, C L
AU  - Peters CL
AD  - Orthopaedic Bioengineering Research Laboratory, 20 North 2030 East, Room 190, 
      University of Utah Medical Center, Salt Lake City, UT 84112, USA.
FAU - Bachus, K N
AU  - Bachus KN
FAU - Craig, M A
AU  - Craig MA
FAU - Higginbotham, T O
AU  - Higginbotham TO
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Arthroplasty
JT  - The Journal of arthroplasty
JID - 8703515
SB  - IM
MH  - *Arthroplasty, Replacement, Hip
MH  - Biomechanical Phenomena
MH  - Cadaver
MH  - *Cementation
MH  - Femur/*surgery
MH  - Humans
MH  - Middle Aged
MH  - Prosthesis Design
MH  - Prosthesis Failure
MH  - Stress, Mechanical
EDAT- 2001/02/27 10:00
MHDA- 2001/05/18 10:01
CRDT- 2001/02/27 10:00
PHST- 2001/02/27 10:00 [pubmed]
PHST- 2001/05/18 10:01 [medline]
PHST- 2001/02/27 10:00 [entrez]
AID - S0883-5403(01)68871-5 [pii]
AID - 10.1054/arth.2001.20537 [doi]
PST - ppublish
SO  - J Arthroplasty. 2001 Feb;16(2):216-24. doi: 10.1054/arth.2001.20537.