The skeletal response to matt and polished cemented femoral stems.
We studied the effect of the surface finish of the stem on the transfer of load in the proximal femur in a sheep model of cemented hip arthroplasty. Strain-gauge analysis and corresponding finite-element (FE) analysis were performed to assess the effect of friction and creep at the cement-stem interface. No difference was seen between the matt and polished stems. FE analysis showed that the effects of cement creep and friction at the stem-cement interface on femoral strain were small compared with the effect of inserting a cemented stem.
Barker
D S
DS
Royal Adelaide Hospital and the University of Adelaide, South Australia, Australia.
Wang
A W
AW
Yeo
M F
MF
Nawana
N S
NS
Brumby
S A
SA
Pearcy
M J
MJ
Howie
D W
DW
D000818:Animals; D001696:Biomechanical Phenomena; D001843:Bone Cements; D019245:Compressive Strength; D019544:Equipment Failure Analysis; D005269:Femur / Q000503:physiopathology*; D020342:Finite Element Analysis; D006622:Hip Prosthesis / Q000009:adverse effects*; D008422:Materials Testing; D016348:Osseointegration; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011897:Random Allocation; D012756:Sheep; D013499:Surface Properties; D016019:Survival Analysis; D013718:Tensile Strength; D013997:Time Factors; D016474:Weight-Bearing
D001843:Bone Cements