Publication
Title
The noncircular shape of the radial head
Author
Abstract
Purpose The purpose of this study was to define the shape of the radial head by identifying the relationship between precisely defined axes of the radial head. Methods An anatomic study was done to define the shape of the radial head and specifically the relationship between the long and the short axis. Twenty-seven cadaveric upper extremities were used. The x and y axes of the radial head were defined in relationship to the radial notch of the ulna, with the forearm in neutral position. Outer diameters of the x and y axis were measured. These were compared with the actual maximum and minimum diameters of the radial head. X and y diameters of the articulating surface of the radial head also were measured. Paired 1-tailed Students t-tests were used to compare the x and y diameters of the radial head. Regression analysis of x and y diameters of the radial head was done to identify a correlation between these parameters. Results Paired 1-tailed Students t-tests showed a significant difference between X and Y diameters of the radial head. Regression analysis of x and y diameters of the radial head showed a strong correlation between these 2 axes. Conclusions The radial head is not round. A strong correlation exists between the x and y diameters of the radial head. The orientation of the long axis is perpendicular to the radial notch with the forearm in neutral rotation. This finding will make it possible to approach the anatomy of the radial head more closely when designing radial head prostheses. The definition of the axes can be used as a guide when implanting the radial head prosthesis.
Language
English
Source (journal)
Journal of hand surgery : American volume / American Society for Surgery of the Hand. - St.Louis, Mo.
Publication
St.Louis, Mo. : 2003
ISSN
0363-5023
Volume/pages
28:6(2003), p. 972-978
ISI
000186710500013
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 24.02.2009
Last edited 10.07.2017
To cite this reference