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Triple arthrodesis stabilization: a quantitative analysis of screw versus staple fixation in fresh cadaveric
C R Payette1, R A Sage, J V Gonzalez
1Department of Orthopaedic Surgery, Loyola University Medical Center, Maywood, IL 60153, USA.
Abstract:
Qualitative analyses of midfoot stabilization in triple arthrodeses utilizing bone staple versus 4.5-mm cannulated cancellous screw fixation, with and without washers, were performed in fresh cadaveric specimens. Twenty-two trials (11 matched-pair feet) were used for direct comparison. Stiffness, defined as force/displacement, was determined at each talonavicular and calcaneocuboid joint. Ultimate load failure points of each specimen were also calculated. Trial results showed no statistically significant difference in stiffness or ultimate failure between these two forms of midfoot fixation for triple arthrodeses.
