The Journal of Bone and Joint Surgery (American). 2008;90:112-120.
doi:10.2106/JBJS.H.00627
© 2008 The Journal of Bone and Joint Surgery, Inc.
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Letters to the Editor: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when Letters to the Editor are posted
Right arrow Alert me if a correction is posted
Services
Right arrow E-mail this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrow Rights and Permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Glaser, D.
Right arrow Articles by Mahfouz, M. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Glaser, D.
Right arrow Articles by Mahfouz, M. R.
Related Collections
Right arrow Surgical Techniques
Right arrow Adult Hip
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Facebook   Add to Technorati   Add to Twitter  
What's this?

Clicking and Squeaking: In Vivo Correlation of Sound and Separation for Different Bearing Surfaces

Diana Glaser, Dipl-Ing, PhD1, Richard D. Komistek, PhD1, Harold E. Cates, MD2 and Mohamed R. Mahfouz, PhD1

1 Center for Musculoskeletal Research, Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, 301 Perkins Hall, Knoxville, TN 37996. E-mail address for D. Glaser: DGlaser@utk.edu
2 Tennessee Orthopaedics Clinic, 9430 Park West Boulevard Suite 130, Knoxville, TN 37923

The first 150 words of the full text of this article appear below.


   Introduction
 
Fluoroscopy has proven to be an accurate method to determine in vivo motions1 and has enabled the extraction of accurate three-dimensional hip-joint kinematics unaffected by erroneous skin movements1,2. Previously, fluoroscopy was used to determine that the femoral head of a total hip prosthesis slides within the acetabular cup, leading to separation of certain aspects of the articular geometry3-5. This finding has often been referred to as hip separation, where there is a loss of contact area, leaving only edge contact. Although separation has been well documented, it has not been correlated to clinical complications nor has a more in-depth understanding of the cause and effect been developed.

Another phenomenon observed primarily in total hip prostheses is the presence of squeaking. Mismatched ceramic couples6, acetabular component malposition7, and impingement8 have been proposed as factors in the development of squeaking. However, not all mismatched and malpositioned components lead . . . [Full Text of this Article]


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Facebook Facebook   Add to Technorati Technorati   Add to Twitter Twitter    What's this?