Trunnion Corrosion in Total Hip Arthroplasty—Basic Concepts - 11/05/19

Doi : 10.1016/j.ocl.2019.02.001

Kenneth L. Urish, MD, PhD ^a,^b,^c,^d,^⁎ , Nicholas John Giori, MD, PhD ^e,^f,^{^{1
Present address: 450 Broadway Street, Pavilion C, 4th Floor, Redwood City, CA 94063-6342.}}, Jack E. Lemons, PhD ^g, William M. Mihalko, MD, PhD ^h, Nadim Hallab, PhD ⁱ
^a Arthritis and Arthroplasty Design Group, The Bone and Joint Center, Magee Womens Hospital of the University of Pittsburgh Medical Center, 300 Halket Street, Suite 1601, Pittsburgh, PA 15213, USA
^b Department of Orthopaedic Surgery, Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA
^c Department of Bioengineering, Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA
^d Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
^e VA Palo Alto Health Care System, Palo Alto, CA, USA
^f Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
^g Department of Orthopaedic Surgery, University of Alabama at Birmingham, 1313 13th Street South, Birmingham, AL 35205-5327, USA
^h Campbell Clinic, Department of Orthopaedic Surgery & Biomedical Engineering, University of Tennessee Health Science Center, 1211 Union Avenue, Suite 510, Memphis, TN 38104, USA
ⁱ Department of Orthopaedic Surgery, Rush University, 1653 West Congress Parkway, Chicago, IL 60612, USA

^∗Corresponding author. 300 Halket Street, Suite 1601, Pittsburgh, PA 15213.300 Halket StreetSuite 1601PittsburghPA15213

Riassunto

There has been increased interest in the role of corrosion in early implant failures and adverse local tissue reaction in total hip arthroplasty. We review the relationship between the different types of corrosion in orthopaedic surgery including uniform, pitting, crevice, and fretting or mechanically assisted crevice corrosion (MACC). Passive layer dynamics serves a critical role in each of these processes. The femoral head-neck trunnion creates an optimal environment for corrosion to occur because of the limited fluid diffusion, acidic environment, and increased bending moment.

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Keywords : Corrosion, Trunnion, Adverse local tissue reaction, Total hip arthroplasty, Head neck taper corrosion, Passive layer

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Key points

Introduction

Corrosion basic science

Types of corrosion

Trunnion corrosion

	Disclosure Statement: None.
	Dr K. Urish is supported in part by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS K08AR071494), the National Center for Advancing Translational Sciences (NCATS KL2TR0001856), the Orthopaedic Research and Education Foundation, and the Musculoskeletal Transplant Foundation.

Esportazione

Vol 50 - N° 3

P. 281-288 - luglio 2019 Ritorno al numero

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