Clinical Review of the Zweymuller Femoral Stem
This review summarizes published literature from a range of reputable sources regarding hip prostheses (stems) utilized currently in cementless Total Hip Arthroplasty. The critical review of published clinical studies shows Zweymuller style (Alloclassic and SL-Plus) stems in all critical characteristics.
Since the introduction of cementless total hip arthroplasty in the 1970s, a range of design philosophies for femoral and acetabular components have demonstrated variable clinical success1,3. Recently cementless components have been yielding clinical results on par and in some cases even surpassing their cemented predecessors2,4,6. As a result, cementless THA is gaining in popularity1,7. The short-term results of four of the best cementless femoral components recorded in the Norwegian Arthroplasty Register as described by Havelin et al, included the Corail, lMT, Profile and Zweymuller stems with revision for loosening <1% at 4.5 years which was comparable to cemented counterparts.
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G. Hallan, S. a Lie, O. Furnes, L. B. Engesaeter, S. E. Vollset, and L. I. Havelin, “Medium- and long-term performance of 11,516 uncemented primary femoral stems from the Norwegian arthroplasty register.,” The Journal of bone and joint surgery. British volume, vol. 89, no. 12, pp. 1574-80, Dec. 2007.
A. Suckel, F. Geiger, L. Kinzl, N. Wulker, and M. Garbrecht, “Long-term results for the uncemented Zweymuller/Alloclassic hip endoprosthesis. A 15-year minimum follow-up of 320 hip operations.,” The Journal of arthroplasty, vol. 24, no. 6, pp. 846-53, Sep. 2009.
O. Reigstad, P. Siewers, M. Røkkum, and B. Espehaug, “Excellent long-term survival of an uncemented press-fit stem and screw cup in young patients: follow-up of 75 hips for 15-18 years.,” Acta orthopaedica, vol. 79, no. 2, pp. 194-202, Apr. 2008.
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T. V. Swanson, “The tapered press fit total hip arthroplasty: a European alternative.,” The Journal of arthroplasty, vol. 20, no. 4 Suppl 2, pp. 63-7, Jun. 2005.
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W. Steens, a G. Schneeberger, R. Skripitz, P. Fennema, and C. Goetze, “Bone remodeling in proximal HA-coated versus uncoated cementless SL-Plus femoral components: a 5-year follow-up study.,” Archives of orthopaedic and trauma surgery, vol. 130, no. 7, pp. 921-6, Jul. 2010.
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Copyright (c) 2014 Christian Wright, BS, Dale Lambert, BS, Declan Brazil, PhD, Kristaps Keggi, MD, John Keggi, MD, Timothy McTighe, Dr. H.S. (hc)
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