title: Fretting and Corrosion in Modular Shoulder Arthroplasty: A Retrieval Analysis.
abstract: Tribocorrosion in taper junctions of retrieved anatomic shoulder arthroplasty implants was evaluated. A comparison of the tribocorrosion between cobalt-chromium and titanium alloy stems was conducted and the observations were correlated with the individual's clinical data. Adverse effects caused by metal debris and subsequent elevated serum metal ion levels are frequently reported in total hip arthroplasty. In total shoulder arthroplasty, to date only a small number of retrieval analyses are available and even fewer address the issue of tribocorrosion at the taper junctions. A total of 36 retrieved hemiarthroplasties and total shoulder arthroplasties were assessed using the modified Goldberg score. The prevalence of fretting and corrosion was confirmed in this cohort. Titanium stems seem to be more susceptible to damage caused by tribocorrosion than cobalt-chromium stems. Furthermore, stemless designs offered less tribocorrosion at the taper junction than stemmed designs. A weak correlation between time to revision and increased levels of tribocorrosion was seen. Whether or not tribocorrosion can lead to adverse clinical reactions and causes failure of shoulder arthroplasties remains to be examined.
authors.affiliation: Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
authors.forename: Johannes A
authors.identifier: 0000-0003-0240-0238
authors.initials: JA
authors.lastname: Eckert
authors.affiliation: Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
authors.forename: Ulrike
authors.identifier: 0000-0003-1684-7671
authors.initials: U
authors.lastname: Mueller
authors.affiliation: Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
authors.forename: Sebastian
authors.identifier: 0000-0001-7687-6904
authors.initials: S
authors.lastname: Jaeger
authors.affiliation: Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Panzram
authors.affiliation: Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
authors.forename: J Philippe
authors.identifier: 0000-0002-2779-4221
authors.initials: JP
authors.lastname: Kretzer
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001178:Arthroplasty / Q000379:methods*; D002858:Chromium Alloys / Q000627:therapeutic use*; D005260:Female; D062785:Hemiarthroplasty / Q000379:methods; D006615:Hip / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012782:Shoulder / Q000601:surgery*; D014025:Titanium / Q000627:therapeutic use*
chemical_list: D002858:Chromium Alloys; D014025:Titanium