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Published in: European Journal of Orthopaedic Surgery & Traumatology 4/2015

01-05-2015 | Original Article

Bone remodeling after a mean of 10 years in diaphyseal cortical defects repaired with femoral revision using bypass fixation of extensively porous-coated stems with high stiffness

Authors: Kiyokazu Fukui, Ayumi Kaneuji, Tanzo Sugimori, Toru Ichiseki, Tadami Matsumoto

Published in: European Journal of Orthopaedic Surgery & Traumatology | Issue 4/2015

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Abstract

Introduction

Femoral component revisions with extensively porous-coated stems have shown promising clinical results, although there are still concerns over stress-shielding.

Materials and methods

We retrospectively reviewed data for 18 patients undergoing femoral component revisions with extensively porous-coated stems with high stiffness. The average length of follow-up was 10 years (range 6–13.7 years).

Results

Radiographic evidence of a bone-ingrown stem was present in 94 % of the hips, and stable fibrous fixation was present in only one hip, but no hips were considered unstable. There was mild stress-shielding in 15 hips, moderate stress-shielding in one hip, and severe stress-shielding in two hips. In one of the latter two hips, stress-shielding was progressive even 8 years after revision surgery. In 12 (92 %) of the 13 hips in which bypass fixation for diaphyseal cortical defects was used, there was good remodeling.

Conclusions

We suggest that femoral component revision using extensive porous-coated stems is a useful option that may allow for healing of diaphyseal cortical defects.
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Metadata
Title
Bone remodeling after a mean of 10 years in diaphyseal cortical defects repaired with femoral revision using bypass fixation of extensively porous-coated stems with high stiffness
Authors
Kiyokazu Fukui
Ayumi Kaneuji
Tanzo Sugimori
Toru Ichiseki
Tadami Matsumoto
Publication date
01-05-2015
Publisher
Springer Paris
Published in
European Journal of Orthopaedic Surgery & Traumatology / Issue 4/2015
Print ISSN: 1633-8065
Electronic ISSN: 1432-1068
DOI
https://doi.org/10.1007/s00590-014-1582-1

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