Relationship to drill bit diameter and residual fracture resistance of the distal tibia

The etiology of bone refractures after screw removal can be attributed to residual drill hole defects. This biomechanical study compared the torsional strength of bones containing various sized cortical drill defects in a tibia model. Bicortical drill hole defects of 3 mm, 4 mm, and 5 mm diameters w...

Full description

Saved in:
Bibliographic Details
Published in:Clinical biomechanics (Bristol) 2022-07, Vol.97, p.105686-105686, Article 105686
Main Authors: McChesney, Grant R., Morris, Randal P., Al Barghouthi, Abeer, Travascio, Francesco, Latta, Loren L., Lindsey, Ronald W.
Format: Article
Language:English
Subjects:
Composite tibia
drill hole
Residual defects
Screw hole
Torsional strength
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The etiology of bone refractures after screw removal can be attributed to residual drill hole defects. This biomechanical study compared the torsional strength of bones containing various sized cortical drill defects in a tibia model. Bicortical drill hole defects of 3 mm, 4 mm, and 5 mm diameters were tested in 26 composite tibias versus intact controls without a drill defect. Each tibia was secured in alignment with the rotational axis of a materials testing system and the proximal end rotated internally at a rate of 1 deg./s until mechanical failure. All defect test groups were significantly lower (P 
ISSN:0268-0033
1879-1271
DOI:10.1016/j.clinbiomech.2022.105686