A novel internal fixation method for open book injuries of the pubic symphysis— A biomechanical analysis

Pelvic fractures in adults are common injuries and account for up to 3.64% of all fractures. Usually, the treatment of open book injuries (Types B1.1 and B1.2 AO-Classification) is open reduction and plate stabilization using dynamic compression plates, with or without interlocking screws. These imp...

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Bibliographic Details
Published in:	Clinical biomechanics (Bristol) 2020-07, Vol.77, p.105009-105009, Article 105009
Main Authors:	Fritz, Tobias, Mettelsiefen, Laura, Strobel, Friedemann, Braun, Benedikt J., Herath, Steven C., Hopp, Sascha J., Histing, Tina, Pohlemann, Tim, Pizanis, Antonius
Format:	Article
Language:	eng
Subjects:	Adult Biomechanical Phenomena Bone Plates Bone Screws Compression forces symphysis Female Fracture Fixation, Internal - instrumentation Fracture Fixation, Internal - methods Fractures, Bone - surgery Humans Internal fixator Male Mechanical Phenomena Open Book injury Pubic Symphysis - injuries Pubic Symphysis - surgery Symphysis
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Summary:	Pelvic fractures in adults are common injuries and account for up to 3.64% of all fractures. Usually, the treatment of open book injuries (Types B1.1 and B1.2 AO-Classification) is open reduction and plate stabilization using dynamic compression plates, with or without interlocking screws. These implants seem to enhance the outcome of such injuries, but also variety of complications occurs. To reduce complications and achieve appropriate reduction and stabilization, this study compared established stabilization techniques to a novel minimally invasive internal fixation method using an internal fixator system that is already being utilized for spinal fractures. This study was performed on 32 composite pelvises in a bilateral stance biomechanical model. The pelvises were variously stabilized with an internal fixator, a 4.5 mm dynamic compression plate and a 3.5 mm symphyseal locking dynamic compression plate. The contact area and loading forces were assessed by a sensor film inside the symphyseal gap. This study showed significantly greater reduction and loading capabilities of the internal fixator compared to the other implants (p
ISSN:	0268-0033 1879-1271