gms | German Medical Science

German Congress of Orthopedic and Trauma Surgery (DKOU 2017)

24.10. - 27.10.2017, Berlin

Bone preserving short stem: mid-term results with special regard to AVN of the hip

Meeting Abstract

  • presenting/speaker Wolf Drescher - Dept. of Orthopedics and Traumatology, Rummelsberg Hospital, Schwarzenbruck, Germany
  • Richard Häne - Dept. of Orthopedics and Traumatology, Rummelsberg Hospital, Schwarzenbruck, Germany
  • Thomas Pufe - Universitätsklinik Aachen, Institut für Anatomie und Zellbiologie, Aachen, Germany
  • David Merschin - BG Klinikum Unfallkrankenhaus Berlin, Klinik für Unfallchirurgie und Orthopädie, Berlin, Germany

Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017). Berlin, 24.-27.10.2017. Düsseldorf: German Medical Science GMS Publishing House; 2017. DocIN25-730

doi: 10.3205/17dkou047, urn:nbn:de:0183-17dkou0472

Published: October 23, 2017

© 2017 Drescher et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.


Outline

Text

Objectives: Although short-stem hip prosthesis are increasingly used for total hip arthroplasty, mid- and long-term results are rare. Furthermore, some studies do not have sufficient case numbers. A possible indication is avascular necrosis of the hip.

Our retrospective study investigates the mid-term functional outcome and the revision rate following implantation of the curved Metha®-short-stem prosthesis comparing AVN of the hip to other indictions in a larger patient pool.

Methods: From 06/2005 until 01/2014 a total of 334 short stem hip prosthesis were implanted, 308 complete data sets were registered. A retrospective analysis was performed using the Oxford hip score. All revisions were registered.

Results: In a total of 308 prosthesis, the Oxford hip score was "excellent" in 67,9 %, "good" in 11 %, "fair" in 13,3 % and "poor" in 7,8 % with a mean follow-up of 59,6 months (SD ±28,8; range 12-115). In 24 cases AVN of the hip was the indication (7,8 %). The Oxford hip score was "excellent" in 66,7 %, "good" in 0,0 %, "fair" in 20,8 % and "poor" in 12,5 %. The cumulated 5-year-survival-rate was 97,3 %.

Conclusion: In mid-term observation, the Metha®-short-stem-prosthesis shows in comparison to a standart hip stem no disadvantage in functional outcome and in survival time. Providing a correct indication, the neck-preserving Metha®-short-stem is a valuable option in total hip arthroplasty for younger patients. The evaluation has shown no significant differences between aseptic osteonecrosis and other indications. Long-term data are needed.