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Related Experiment Video

Updated: May 11, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

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[Options and limits of stemless shoulder prostheses].

T Ambacher1

  • 1Schulterchirurgie, ARCUS Kliniken Pforzheim, Rastatterstr. 15-17, 75179, Pforzheim, Deutschland. ambacher@sportklinik.de

Der Orthopade
|May 23, 2013
PubMed
Summary

Stemless shoulder implants offer alternatives in joint replacement, with two main fixation types. Current data suggests neither system shows clear superiority, with choices depending on bone quality.

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[Advances in arthroscopic capsular labrum repair in ventral shoulder instability].

Der Orthopade·2010
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[Shoulder replacement in arthritis of the shoulder joint].

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Intraoperative localization of calcification in the supraspinatus via a percutaneous marking suture after preoperative ultrasound.

Journal of shoulder and elbow surgery·2007
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Arthrodesis of the shoulder after septic arthritis. Long-term results.

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[Septic arthritis of the shoulder following intra-articular injection therapy. Lethal course due to delayed initiation of therapy].

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[Ruptures of the subscapular tendon. A diagnostic problem?].

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Area of Science:

  • Orthopedic surgery
  • Biomaterials engineering

Background:

  • Over 10,000 stemless implants used in shoulder arthroplasty since 2004.
  • Two metaphyseal anchorage types exist: fin system impaction and cage screw fixation.

Purpose of the Study:

  • To compare the efficacy and suitability of different stemless implant anchorage systems.
  • To evaluate advantages and disadvantages of stemless implants in revision surgery.

Main Methods:

  • Review of existing literature and clinical data on stemless shoulder implants.
  • Analysis of implant performance based on bone quality and surgical approach.

Main Results:

  • No single stemless implant system demonstrates decisive superiority currently.
  • Cage screw fixation may be advantageous in sclerotic bone.
  • Fin system impaction may be preferable in osteoporotic bone or bone defects.

Conclusions:

  • Stemless shoulder implants require good bone quality without defects at the resection site.
  • These implants are not indicated for acute fractures.
  • Further long-term studies are needed to determine optimal implant selection.

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