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Static Strength Evaluation of Sacroiliac Fracture‐Separation Repairs
Author(s) -
RADASCH ROBERT M.,
MERKLEY DAVID F.,
HOEFLE WILLIAM D.,
PETERSON JACK
Publication year - 1990
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.1990.tb01158.x
Subject(s) - medicine , orthodontics , fixation (population genetics) , fracture (geology) , reduction (mathematics) , internal fixation , composite material , surgery , materials science , population , geometry , mathematics , environmental health
The relative static strengths of seven fixation configurations for the repair of sacroiliac fracture‐separations were determined. The fixation techniques were two 3.5 mm screws, one 4.5 mm screw, one 4.5 mm screw and a pin, two 4.5 mm screws, one 6.5 mm screw, one 6.5 mm screw and a pin, and two 6.5 mm screws. Each configuration was subjected to a torsional, a bending, and a shear disruptive force while the maximum load tolerated before failure was measured. Two screws were stronger than a single screw of similar size, two small screws were stronger than a single larger screw, and a reduction pin added no significant strength to a single screw repair. It was concluded that use of the largest screws possible will maximize the strength of a sacroiliac fracture‐separation repair.