The STRYDE limb lengthening nail is susceptible to mechanically assisted crevice corrosion: an analysis of 23 retrieved implants.

Acta Orthopaedica
Morten Stendahl JellesenJan Duedal Rölfing

Abstract

Background and purpose - We noted several adverse events in patients in whom the first version of the STRYDE limb-lengthening nail (NuVasive Specialized Orthopaedics, San Diego, CA) had been implanted. Pain, osteolysis, periosteal reactions, and cortical hypertrophy at the nail junction were noted. Here, we present the analysis of 23 retrieved STRYDE implants.Materials and methods - We undertook visual inspection of the retrieved nails and screws, mechanical evaluation of the junction, micro-CT analyses, microscopic inspection of the bushing, screws, screw holes, and separated parts of the implants. Positive material identification (PMI) and energy-dispersive X-ray spectroscopy (EDS) were used to analyze the chemical composition. The hardness of the material was also investigated.Results - 20/23 retrieved nails had visible signs of corrosion, i.e., discoloration at the telescopic junction. Micro-CT verified corrosion attacks in 12/12 scanned bushings. Corrosion, predominantly mechanically assisted crevice corrosion, was observed at the locking screws and screw holes in 20/23 nails. Biological material inside the nail was observed in addition to oozing from the junction of 2 nails during hardware removal, which was experimentall...Continue Reading

References

Apr 9, 2017·International Orthopaedics·Hamza M AlrabaiJanet D Conway
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Mar 16, 2021·Journal of Clinical Orthopaedics and Trauma·Hady H EltayebyJohn E Herzenberg
May 10, 2021·Orthopaedics & Traumatology, Surgery & Research : OTSR·Jan Duedal RölfingAhmed A Abood
Jun 2, 2021·The Bone & Joint Journal·Alexios Dimitrios IliadisPeter Calder

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Citations

Jun 3, 2021·Journal of Clinical Medicine·Maxime TeulièresFranck Accadbled
Jul 23, 2021·Archives of Orthopaedic and Trauma Surgery·Björn VogtAdrien Frommer
May 10, 2021·Orthopaedics & Traumatology, Surgery & Research : OTSR·Jan Duedal RölfingAhmed A Abood

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