THA with Highly Cross-linked Polyethylene in Patients 50 Years or Younger
- 1 August 2009
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Clinical Orthopaedics and Related Research
- Vol. 467 (8), 2059-2065
- https://doi.org/10.1007/s11999-008-0697-2
Abstract
Highly cross-linked polyethylene has been associated with low in vitro wear, but also has decreased in vitro ultimate yield strength. We therefore asked whether highly cross-linked polyethylene would result in lower outcome scores, wear, or early failure in a young patient population. Seventy THAs in 64 patients were performed using a highly cross-linked (electron beam-irradiated to 9 Mrads) acetabular liner and a cobalt-chrome femoral head. The average age of the patients at surgery was 41 years (range, 19–50 years). The minimum followup was 2.4 years (average, 4 years; range, 2.4–6.5 years). We recorded demographic and clinical data, including Harris hip score. Polyethylene wear measurements were analyzed with a validated, computer-assisted, edge detection method. The average Harris hip score improved from 53 to 92 at last followup. There was no evidence of acetabular or femoral loss of fixation, subsidence, or loosening. Linear wear was undetectable at this followup interval. No patient experienced catastrophic failure or underwent revision surgery. These data show low polyethylene wear rates and no catastrophic failures at early followup in a young patient cohort. Level of Evidence: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.Keywords
This publication has 51 references indexed in Scilit:
- A comparison of the penetration rate of two polyethylene acetabular liners of different levels of cross-linkingThe Journal of Bone and Joint Surgery. British volume, 2007
- A Randomized Prospective Evaluation of Outcomes After Total Hip Arthroplasty Using Cross-linked Marathon and Non–cross-linked Enduron Polyethylene LinersThe Journal of Arthroplasty, 2006
- Reasons for Revision Hip SurgeryClinical Orthopaedics and Related Research, 2004
- Patient-reported outcome in total hip replacementThe Journal of Bone and Joint Surgery. British volume, 2004
- Is the Harris Hip Score System Useful to Study the Outcome of Total Hip Replacement?Clinical Orthopaedics and Related Research, 2001
- Cementless Acetabular Replacement in the YoungClinical Orthopaedics and Related Research, 2000
- Development of an extremely wear‐resistant ultra high molecular weight polythylene for total hip replacementsJournal of Orthopaedic Research, 1999
- Polyethylene wear and periprosthetic osteolysis in metal-backed acetabular components with cylindrical linersThe Journal of Arthroplasty, 1998
- Primary Cementless Acetabular Reconstruction in Patients Younger Than 50 Years OldClinical Orthopaedics and Related Research, 1997
- Natural history of femoral focal osteolysis with proximal ingrowth smooth stem implantThe Journal of Arthroplasty, 1996