Wear of Highly Crosslinked Polyethylene against Cobalt Chrome and Ceramic femoral heads

2006 ◽  
pp. 185-188 ◽  
Author(s):  
J. Fisher ◽  
L. M. Jennings ◽  
A. L. Galvin
Keyword(s):  
Femoral Heads ◽  
Cobalt Chrome

Wear Performance of 28 Millimeter Femoral Heads with the Harris Galante Cup: Comparison of Alumina and Cobalt Chrome

2003 ◽  
pp. 177-182
Author(s):  
Ch. Hendrich ◽  
S. Goebel ◽  
Ch. Roller ◽  
S. Kirschner ◽  
J. M. Martell
Keyword(s):  
Wear Performance ◽  
Femoral Heads ◽  
Cobalt Chrome

Five-year comparison of wear using oxidised zirconium and cobalt–chrome femoral heads in total hip arthroplasty

2015 ◽  
Vol 97-B (7) ◽  
pp. 883-889 ◽  
Author(s):  
S. S. Jassim ◽  
S. Patel ◽  
N. Wardle ◽  
J. Tahmassebi ◽  
R. Middleton ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Femoral Heads ◽  
Cobalt Chrome

scholarly journals Wear and migration of highly cross-linked and conventional cemented polyethylene cups with cobalt chrome or Oxinium femoral heads: A randomized radiostereometric study of 150 patients

2011 ◽  
Vol 29 (8) ◽  
pp. 1222-1229 ◽  
Author(s):  
Thomas Kadar ◽  
Geir Hallan ◽  
Arild Aamodt ◽  
Kari Indrekvam ◽  
Mona Badawy ◽  
...  
Keyword(s):  
Femoral Heads ◽  
And Migration ◽  
Cobalt Chrome

scholarly journals Bearing-Foreign Material Deposition on Retrieved Co-Cr Femoral Heads: Composition and Morphology

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Nishant M. Tikekar ◽  
Anneliese D. Heiner ◽  
Thomas E. Baer ◽  
Karen M. Kruger ◽  
John J. Callaghan ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Optical Profilometry ◽  
Foreign Material ◽  
X Ray ◽  
Material Deposition ◽  
Dislocation Reduction ◽  
Femoral Heads ◽  
Acetabular Shell ◽  
Hip Arthroplasties ◽  
Cobalt Chrome

Bearing-foreign material deposition onto a femoral head can occur from contact with an acetabular shell due to dislocation, reduction, or subluxation. The purpose of this study was to comprehensively characterize deposit regions on retrieved cobalt-chrome femoral heads from metal-on-polyethylene total hip arthroplasties that had experienced such adverse events. The morphology, topography, and composition of deposition regions were characterized using macrophotography, optical profilometry, scanning electron microscopy, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy. The deposit areas were relatively large, they were much rougher than the surrounding undamaged clean areas, and they displayed several distinct morphologies. Titanium alloy elements were the predominant constituents. Calcium and phosphorous were also detected within the deposit areas, in a composition that could nucleate abrasive hydroxyapatite. In addition, tungsten-rich particles, likely present as tungsten carbide, were observed on top of the titanium deposits. The increased roughness associated with these deposition features would be expected to accelerate damage and wear of the opposing liner and hence accelerate the development of osteolysis.

Comparison of in vivo wear between polyethylene liners articulating with ceramic and cobalt-chrome femoral heads

2000 ◽  
Vol 82-B (7) ◽  
pp. 948-951 ◽  
Author(s):  
C. J. Sychterz ◽  
C. A. Engh ◽  
A. M. Young ◽  
R. H. Hopper ◽  
C. A. Engh
Keyword(s):  
Femoral Heads ◽  
Cobalt Chrome

Influence du mode de coulée sur la tenue en fatigue d’un alliage cobalt-chrome utilisé en odontologie

1983 ◽  
Vol 71 (9-10) ◽  
pp. 219-222
Author(s):  
S. Coletti ◽  
J. Exbrayat ◽  
F. Montheillet
Keyword(s):  
Cobalt Chrome

Holding Power of Orthopaedic Screws in Bovine Femoral Heads

1993 ◽  
Vol 06 (03) ◽  
pp. 160-162 ◽  
Author(s):  
M. J. Ulm ◽  
D. G. Wilson
Keyword(s):  
Femoral Head ◽  
Cannulated Screws ◽  
Cancellous Screw ◽  
Holding Power ◽  
Cortical Screw ◽  
Femoral Heads ◽  
Cancellous Screws ◽  
Physeal Fractures

SummaryFemoral capital physeal fractures have been successfully repaired using 7.0 mm cannulated screws. The holding power of 7.0 mm cannulated screws was compared to the holding power of 5.5 mm cortical screws and 6.5 mm cancellous screws using paired bovine femoral heads. The 7.0 mm cannulated screw’s holding power was superior to the 6.5 mm cancellous screw and similar to that of the 5.5 mm cortical screw.When placed in the bovine femoral head, 7.0 mm cannulated screws have holding power greater than 6.5 mm cancellous screws and similar to 5.5 mm cortical screws.

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