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Comparison Of Joint Compression And Pull- Out Strength Of 6.5-Mm Self-Drilling Screws With Headed And Headless In Subtalar Arthrodesis: A Pilot Study, Christian Douthit, Matthew Blue, Adam N. Wooldridge, Micah Lierly-Chick, Kerry Gilbert, Jerry Grimes
Comparison Of Joint Compression And Pull- Out Strength Of 6.5-Mm Self-Drilling Screws With Headed And Headless In Subtalar Arthrodesis: A Pilot Study, Christian Douthit, Matthew Blue, Adam N. Wooldridge, Micah Lierly-Chick, Kerry Gilbert, Jerry Grimes
UNM Orthopaedic Research Journal
Background: In patients with degenerative osteoarthritis of the subtalar joint, surgical treatment can include subtalar arthrodesis. Notably, mechanical factors such as compression and pull-out strength contribute to successful union, which can be achieved through use of headed or headless cannulate screws. The purpose of this study was to compare the resultant joint compressive force and pull-out strength between use of a headless 6.5-mm self-drilling cannulated compression screw and a more traditional headed 6.5- mm self-drilling cannulated compression screw.
Methods: This study used the calcaneus and talus from six paired fresh frozen specimens. The soft tissues were stripped and the joint …