Taper fretting corrosion with Stryker Anato stem after hip replacement

David M Freccero; Kenneth J McAlpine; Eric L Smith

doi:10.1016/j.artd.2020.01.011

Taper fretting corrosion with Stryker Anato stem after hip replacement

Arthroplast Today. 2020 Mar 31;6(2):210-213. doi: 10.1016/j.artd.2020.01.011. eCollection 2020 Jun.

Authors

David M Freccero¹, Kenneth J McAlpine¹, Eric L Smith¹

Affiliation

¹ Department of Orthopaedics, Boston Medical Center, Boston, MA, USA.

Abstract

We report a case of head-neck taper fretting corrosion in a patient who had a total hip replacement with a noncemented Stryker Anato femoral stem and a V40 metal head with a Stryker Tritanium hemispherical socket with a highly cross-linked polyethylene liner (metal on polyethylene) (Stryker, Mahwah, NJ, USA). A 57-year-old man presented with early-onset hip pain after right total hip arthroplasty. Workup was negative for infection. Metal artifact reduction sequence MRI revealed an encapsulated fluid mass. Metal ion cobalt level was elevated at 6 ppb. The patient underwent right revision total hip arthroplasty with excellent results at 1-year follow-up.

Keywords: Adverse local tissue reaction; Hip revision; Stryker Anato; Taper corrosion; Total hip arthroplasty; Trunnionosis.

Publication types

Case Reports