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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a short...

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Updated: May 24, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
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Radial head replacement with the MoPyC pyrocarbon prosthesis.

Ioannis K Sarris1, Margaritis J Kyrkos, Nikiforos N Galanis

  • 1Third Orthopaedic Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Journal of Shoulder and Elbow Surgery
|February 21, 2012
PubMed
Summary

Radial head replacement using the MoPyC prosthesis offers good elbow function and range of motion for carefully selected patients with complex fractures. This study shows promising early results for this treatment option.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Trauma Surgery

Background:

  • Radial head fractures present significant treatment challenges.
  • The MoPyC prosthesis offers a potential solution for these complex injuries.

Purpose of the Study:

  • To evaluate the early clinical and radiographic outcomes of radial head replacement using the MoPyC prosthesis.
  • To assess the functional recovery and patient satisfaction after this procedure.

Main Methods:

  • Retrospective evaluation of 32 patients who underwent radial head resection and MoPyC prosthesis implantation.
  • Radiographic assessment and clinical evaluation using Broberg-Morrey and Mayo Elbow Performance Score (MEPS) scales.
  • Mean follow-up of 27 months.

Main Results:

  • Satisfactory range of motion (flexion-extension 130°, pronation 72°, supination 72°) and grip strength (96% of contralateral side) were observed.
  • High scores on functional scales: Broberg-Morrey (excellent/good 77%) and MEPS (excellent/good 97%).
  • Six cases showed periprosthetic lucencies or osteolysis without clinical loosening.

Conclusions:

  • Radial head replacement with the MoPyC pyrocarbon prosthesis provides favorable outcomes in carefully selected patients.
  • The prosthesis demonstrates potential for restoring elbow joint function and range of motion.