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Title: Periacetabular bone mineral density changes after resurfacing hip arthroplasty versus conventional total hip arthroplasty. A randomized controlled DEXA study
Author(s): Smolders, J.M.; Pakvis, D.F.M. ; Hendrickx, B.W. ; Verdonschot, N.J. ; Susante, J.L.C. van
Publication year: 2013
Source: Journal of Arthroplasty, vol. 28, iss. 7, (2013), pp. 1177-1184
ISSN: 0883-5403
DOI: http://dx.doi.org/10.1016/j.arth.2012.08.025
Publication type: Article / Letter to editor

Please use this identifier to cite or link to this item : https://hdl.handle.net/2066/125757   https://hdl.handle.net/2066/125757

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Subject: NCEBP 10: Human Movement & Fatigue
Organization: Orthopaedics
Nuclear Medicine
Journal title:
Journal of Arthroplasty
Volume: vol. 28
Issue: iss. 7
Page start: p. 1177
Page end: p. 1184
Abstract:
A randomized controlled trial was performed to evaluate acetabular bone mineral density (BMD) changes after hip resurfacing (RHA) versus an established conventional total hip arthroplasty (THA). A total of 71 patients were allocated randomly to receive either an RHA press-fit cobalt-chromium cup (n=38) or a THA with a threaded titanium cup and polyethylene-metal-inlay insert (n=33). The BMD in five separate periacetabular regions of interest (ROI) was prospectively quantified preoperative until 24 months. We conclude that, in contrast to our hypothesis, periacetabular BMD was better preserved after RHA than after placement of a conventional THA. Long term follow-up studies are necessary to see whether this benefit in bone preservation sustains over longer time periods and whether it is turned into clinical benefits at future revision surgery.

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