Gross Stem Taper Failure with Head Dissociation in a Very Active Patient with an Uncemented Femoral Stem

Publikationstyp
Journal Article
Date Issued
2020-07-01
Sprache
English
Author(s)
Polster, Valerie-Sophie Amber  
Hube, Robert  
Morlock, Michael  
Institut
Biomechanik M-3  
TORE-URI
http://hdl.handle.net/11420/7103
Journal
Journal of bone and joint surgery  
Volume
10
Issue
3
Start Page
e19.00662
Citation
JBJS Case Connector 3 (10): e19.00662 (2020-07-01)
Publisher DOI
10.2106/JBJS.CC.19.00662
Scopus ID
2-s2.0-85089320837
CASE: We report a case of gross taper failure (GTF) in a very active 81-year-old man 14 years after index operation. The patient presented with acute hip pain and shortening of the left leg. X-rays showed the dissociation of the head. The stem had to be revised because of the massive stem taper damage. CONCLUSION: This case demonstrates that GTF at the head-stem taper junction following mechanically assisted crevice corrosion is not limited to a specific taper design and material. Other risk factors such as high activity level can lead to this failure pattern also in established stem and taper designs.
DDC Class
600: Technology