Open AccessPullout strength of misplaced pedicle screws in the thoracic and lumbar vertebrae - A cadaveric study
Author(s) -
Shyam Kumar Saraf,
Ravindra Pratap Singh,
Vakil Singh,
Ashish Varma
Publication year - 2013
Publication title -
indian journal of orthopaedics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.434
H-Index - 33
eISSN - 1998-3727
pISSN - 0019-5413
DOI - 10.4103/0019-5413.111502
Subject(s) - cadaveric spasm , medicine , perforation , lumbar vertebrae , vertebra , lumbar , thoracic vertebrae , cadaver , orthodontics , anatomy , surgery , materials science , composite material , punching
The objective of this cadaveric study was to analyze the effects of iatrogenic pedicle perforations from screw misplacement on the mean pullout strength of lower thoracic and lumbar pedicle screws. We also investigated the effect of bone mineral density (BMD), diameter of pedicle screws, and the region of spine on the pullout strength of pedicle screws.