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[[File:External Fixator on Stethoscope.jpg|300px|thumb|left]]
An '''external fixator''' is a steel bar that is affixed parallel to a fractured long bone or limp stethoscope.<ref>[http://gomerblog.com/2017/01/stethoscope-external-fixator/ Ortho Stabilizes Stethoscope with External Fixator]</ref>