Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method
Joint Authors
Takai, Hirokazu
Nakayama, Daisuke
Murayama, Masatoshi
Takahashi, Tomoki
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Implant fracture is one of the rarest complications of total hip arthroplasty (THA).
A 57-year-old woman experienced a fracture of the femoral stem (AHFIX Q, KYOCERA, Japan) about five years after THA.
We examined the broken stem by digital microscopy, scanning electron microscopy, and finite element method.
The anterolateral corner of the stem’s neck was found to be the origin point of the fracture.
Finite element method analysis revealed that the stress concentration was highest in the corner of the hollow for apparatus attachment.
The stem’s design has been considered one of the risk factors for stem fracture.
In this patient, multiple risk factors, including thin stem (the smallest size, NAR #1), use of the long neck (+3 mm), obesity (body mass index: 27.3), and adjacent osteoarthritis (contralateral THA loosening and knee osteoarthritis), were present.
To our knowledge, this is the first reported case of an AHFIX Q stem fracture.
Surgeons must keep in mind that fracture of the femoral stem in patients with several risk factors is possible even several years after THA.
American Psychological Association (APA)
Takai, Hirokazu& Nakayama, Daisuke& Murayama, Masatoshi& Takahashi, Tomoki. 2019. Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method. Case Reports in Orthopedics،Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1142847
Modern Language Association (MLA)
Takai, Hirokazu…[et al.]. Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method. Case Reports in Orthopedics No. 2019 (2019), pp.1-6.
https://search.emarefa.net/detail/BIM-1142847
American Medical Association (AMA)
Takai, Hirokazu& Nakayama, Daisuke& Murayama, Masatoshi& Takahashi, Tomoki. Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method. Case Reports in Orthopedics. 2019. Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1142847
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1142847