Surface analysis of retrieved pedicle screws by field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX) mapping.
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posted on 2018-05-07, 17:33 authored by Koji Akeda, Seiji Yamaguchi, Tomiharu Matsushita, Tadashi Kokubo, Koichiro Murata, Norihiko Takegami, Akihiko Matsumine, Akihiro SudoFollowing torsional screw extraction analysis, the surface of the threaded portion of removed pedicle screws (PSs) was evaluated by FE-SEM and EDX mapping. Little or no bony tissues were found on the surfaces of the control screws at 1-month (1M) (A) or 3-months post-surgery (3M) (B). A number of bony tissues (white arrows in the magnified pictures) were observed on the surfaces of bioactive screws at 1M (C) and 3M (D) post-surgery. Scale bar: 10 μm.
