Archives of Orthopaedic and Trauma Surgery

, Volume 134, Issue 7, pp 1003–1008 | Cite as

Migration pattern of a femoral short-stem prosthesis: a 2-year EBRA-FCA-study

  • Tobias Freitag
  • Thomas Kappe
  • Michael Fuchs
  • Sebastian Jung
  • Heiko Reichel
  • Ralf BiegerEmail author
Hip Arthroplasty



Short-stem prostheses enable bone stock preserving total hip arthroplasty. However, little is known about the durability of this group of implants. The most common cause for implant failure is aseptic loosening. Early implant migration is supposed to be the best indicator for mechanical failure of femoral stems. The purpose of this study was to evaluate the migration pattern of a short stem implant and the influence of BMI, gender and femoral offset on implant migration.

Materials and methods

After a minimum follow-up of 2 years, 72 hips were included in this EBRA-FCA-study. The mean age at surgery of the 34 female and 32 male patients was 54 years (range 22–75 years). The mean BMI was 29 kg/m2 (range 21–51 kg/m2).


Mean axial subsidence was 1 mm (±1.4 mm) after 24 months. BMI, gender and implant offset did not influence implant migration on a statistical significant level. Nevertheless, a tendency towards more migration in obese and female patients was observed.


The evaluated short stem prosthesis showed a migration pattern similar to clinical proven standard straight stem implants. The indication of short-stem prostheses should be critically evaluated in obese and female patients.


Arthroplasty Hip Migration Short stem EBRA 



The authors thank Semra Kocak for the statistical analysis.

Conflict of interest



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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Tobias Freitag
    • 1
  • Thomas Kappe
    • 1
  • Michael Fuchs
    • 1
  • Sebastian Jung
    • 1
  • Heiko Reichel
    • 1
  • Ralf Bieger
    • 1
    Email author
  1. 1.Department of Orthopaedic SurgeryCentre of Musculoskeletal Research, University of UlmUlmGermany

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