TY - JOUR
T1 - Long-Term Results of Total Hip Arthroplasty with 28-Millimeter Cobalt-Chromium Femoral Heads on Highly Cross-Linked Polyethylene in Patients 50Years and Less
AU - Stambough, Jeffrey B.
AU - Pashos, Gail
AU - Bohnenkamp, Frank C.
AU - Maloney, William J.
AU - Martell, John M.
AU - Clohisy, John C.
N1 - Funding Information:
This research was supported by the Curing Hip Disease Fund (JCC) and the Zimmer, Inc. Clinical Research Grant (JCC), grant # CW3008 . This publication was also supported by the Washington University Institute of Clinical and Translational Sciences grant UL1 TR000448 from the National Center for Advancing Translational Sciences. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Highly cross-linked polyethylene (HXLPE) is the most commonly used bearing surface in total hip arthroplasty (THA) because of its superior wear properties, but long-term results in young patients are limited. We report on the clinical outcome, radiographic wear patterns and survivorship of 72 patients ≤50years old who had a 28-millimeter cobalt-chromium femoral head on HXLPE acetabular liner. Mean and median true linear wear rates at average ten-year follow-up were 0.0104 and 0.016mm per year±0.07mm. Mean and median two-dimensional volumetric wear rates were 12.79mm3 and 5.834mm3 per year±26.1mm3 as determined by Martell analysis. As a result of the minimal wear profile, there was no evidence of radiographic osteolysis and no wear-related revisions.
AB - Highly cross-linked polyethylene (HXLPE) is the most commonly used bearing surface in total hip arthroplasty (THA) because of its superior wear properties, but long-term results in young patients are limited. We report on the clinical outcome, radiographic wear patterns and survivorship of 72 patients ≤50years old who had a 28-millimeter cobalt-chromium femoral head on HXLPE acetabular liner. Mean and median true linear wear rates at average ten-year follow-up were 0.0104 and 0.016mm per year±0.07mm. Mean and median two-dimensional volumetric wear rates were 12.79mm3 and 5.834mm3 per year±26.1mm3 as determined by Martell analysis. As a result of the minimal wear profile, there was no evidence of radiographic osteolysis and no wear-related revisions.
KW - Highly cross-linked polyethylene
KW - Linear and volumetric wear
KW - Martell method
KW - THA survivorship
UR - http://www.scopus.com/inward/record.url?scp=84953835073&partnerID=8YFLogxK
U2 - 10.1016/j.arth.2015.07.025
DO - 10.1016/j.arth.2015.07.025
M3 - Article
C2 - 26260785
AN - SCOPUS:84953835073
SN - 0883-5403
VL - 31
SP - 162
EP - 167
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
IS - 1
ER -