Journal of Failure Analysis and Prevention

, Volume 13, Issue 6, pp 678–683 | Cite as

Cervical Stent Failure Analysis

  • Wayne Reitz
Case History---Peer-Reviewed


Harrington rods failed after a short period in service. Metallurgical analysis showed (1) notches were present on the rods, (2) small cracks present in the bent regions of the rod, and (3) the fractures occurred at clamped locations. All of these conditions can shorten the fatigue life by eliminating the crack initiation stage of fatigue and allowing corrosion fatigue to occur.


Annealing Biomaterials Failure analysis Titanium 


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Copyright information

© ASM International 2013

Authors and Affiliations

  1. 1.Talbott Associates, Inc.PortlandUSA

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