Implantation of the Femoral Stem into a Bed of Titanium Granules Using Vibration | Zendy

Per-Axel Alffram | Zendy; Lars Bruce | Zendy; Lars M. Bjursten | Zendy; Gunnar B. J. Andersson | Zendy; Robert M. Urban | Zendy

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Implantation of the Femoral Stem into a Bed of Titanium Granules Using Vibration

Author(s) -

Per-Axel Alffram,

Lars Bruce,

Lars M. Bjursten,

Gunnar B. J. Andersson,

Robert M. Urban

Publication year - 2007

Publication title -

upsala journal of medical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.808

H-Index - 41

eISSN - 2000-1967

pISSN - 0300-9734

DOI - 10.3109/2000-1967-192

Subject(s) - medicine , titanium , fixation (population genetics) , biomedical engineering , femur , bone tissue , autopsy , dentistry , surgery , pathology , metallurgy , materials science , population , environmental health

This study describes a new method for the fixation of titanium hip stem prostheses based on interdigitation of irregularly shaped porous titanium granules onto bone tissue. The granules were distributed into the prepared femoral cavity using a vibrating tool, and the stem was vibrated and tapped into the bed of granules. In this pilot study, 5 patients were followed between 9 and 15 years. The clinical results were excellent and the prostheses remained stable. Autopsy (one specimen) and computer tomography (three patients) show that the granules become incorporated by bone ingrowth.

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