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      Stemless shoulder prosthesis versus conventional anatomic shoulder prosthesis in patients with osteoarthritis : A comparison of the functional outcome after a minimum of two years follow-up

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          Abstract

          Background

          The stemless shoulder prosthesis is a new concept in shoulder arthroplasty. To date, only a few studies have investigated the results of this prosthesis. The aim of this study was to investigate the clinical and radiological midterm results of this implant in comparison with a standard anatomic stemmed shoulder prosthesis.

          Materials and methods

          The Constant score, the DASH score, the active range of motion (abduction, anteversion, external rotation), and the radiological results were examined in 82 patients with primary osteoarthritis of the shoulder treated with either the Total Evolutive Shoulder System ® (Biomed, France) stemless shoulder prosthesis or the Affinis ® (Mathys, Switzerland) stemmed shoulder prosthesis to detect possible differences in the functional outcome and to evaluate radiological properties of the implants. Patients were examined before and 32 ± 4 months after surgery.

          Results

          There was no significant difference in the Constant scores of the groups treated with the stemless shoulder prosthesis (65.0 ± 11.0 points) and the stemmed shoulder prosthesis (73.2 ± 11.3 points; P = 0.162). The estimated blood loss ( P = 0.026) and the mean operative time ( P = 0.002) were significantly lower in the group with the stemless shoulder prosthesis.

          Conclusions

          The use of the stemless shoulder prosthesis yielded good results which, in a mid-term follow-up, were comparable with those provided by a standard anatomic shoulder prosthesis. Further investigations are needed regarding the long-term performance of this prosthesis.

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          Author and article information

          Contributors
          +49-391-6714035 , +49-391-6714029 , alexander.berth@med.ovgu.de
          Journal
          J Orthop Traumatol
          J Orthop Traumatol
          Journal of Orthopaedics and Traumatology : Official Journal of the Italian Society of Orthopaedics and Traumatology
          Springer Milan (Milan )
          1590-9921
          1590-9999
          9 November 2012
          9 November 2012
          March 2013
          : 14
          : 1
          : 31-37
          Affiliations
          [ ]Department of Orthopaedics, Otto-von-Guericke-University, 39120 Magdeburg, Germany
          [ ]Centre of Orthopaedics and Traumatology, Park-Hospital Leipzig, 04289 Leipzig, Germany
          [ ]Orthopädische Universitätsklinik, Universitätsklinikum A. ö. R., Leipziger Str. 44, 39120 Magdeburg, Germany
          Article
          216
          10.1007/s10195-012-0216-9
          3586071
          23138538
          cb43fdc0-b7c4-4b8d-885e-62d6c60eaff9
          © The Author(s) 2012
          History
          : 17 January 2012
          : 21 October 2012
          Categories
          Original Article
          Custom metadata
          © The Author(s) 2013

          Orthopedics
          stemless shoulder prosthesis,shoulder,arthroplasty,osteoarthritis
          Orthopedics
          stemless shoulder prosthesis, shoulder, arthroplasty, osteoarthritis

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