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. 2016 Apr;31(4):824-9.
doi: 10.1016/j.arth.2015.08.020. Epub 2015 Aug 29.

Favorable Results of a Short, Tapered, Highly Porous, Proximally Coated Cementless Femoral Stem at a Minimum 4-Year Follow-Up

Anthony Albers  1 , Ahmed A Aoude  1 , David J Zukor  1 , Olga L Huk  1 , John Antoniou  1 , Michael Tanzer  1
Affiliations

Favorable Results of a Short, Tapered, Highly Porous, Proximally Coated Cementless Femoral Stem at a Minimum 4-Year Follow-Up

Anthony Albers et al. J Arthroplasty. 2016 Apr.

Abstract

Background: Shorter femoral stems have been increasingly used in total hip arthroplasty. However, there are few clinical studies evaluating the outcomes of these stems and comparing them to their regular-sized counterparts.

Methods: Our study provides radiologic and functional outcomes at 5-year mean follow-up of 131 cementless Tri-Lock Bone Preservation Stems, a short tapered stem with a proximal porous coating.

Results: Stem-related complications were low with one revision for stem aseptic loosening. Kaplan-Meier analysis estimated 99.2% stem survival rate at 5 years, comparable to conventional length Tri-Lock stems (99.8% at 8.9 years).

Conclusion: This study demonstrates that the Tri-Lock Bone Preservation Stem can provide successful outcomes at 5-year follow-up. Further studies are required to determine the long-term outcome of these implants in patients with poor bone stock.

Keywords: cementless; primary; short stem; taper; total hip arthroplasty.

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