Redesign of a reverse shoulder prosthesis: Kinematic and mechanical study

Vincenzo Nigrelli, Tommaso Ingrassia, Davide Tumino, Tommaso Ingrassia, Giovan Battista Trinca, Vincenzo Nigrelli

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Abstract

In this work a commercial reverse shoulder prosthesis has been redesigned to improve performances in terms of range of movements of the implant and stability to dislocation. A kinematic and mechanic study has been performed using a realistic solid model of the prothesised shoulder: in particular, all the components of the prosthesis have been acquired via a 3D laser scanner and inserted in a virtual humerus-glenoid system by reproducing the common surgical procedure. The final model has been used to measure the maximum angles of abduction and rotation of the arm and the shear forces that cause dislocation. Modifications proposed to the commercial prosthesis are: a different orientation of the cutting plane of the glenoid component and the interposition of a spacer to move the center of rotation of the arm.
Lingua originaleEnglish
Titolo della pubblicazione ospiteApplied Mechanics and Materials
Pagine847-851
Numero di pagine5
Stato di pubblicazionePublished - 2014

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cita questo

Nigrelli, V., Ingrassia, T., Tumino, D., Ingrassia, T., Trinca, G. B., & Nigrelli, V. (2014). Redesign of a reverse shoulder prosthesis: Kinematic and mechanical study. In Applied Mechanics and Materials (pagg. 847-851)