Double bundle ACL grafts predict four strand single bundle graft size and demonstrate greater available area for graft integration
2018
IntroductionThe advent of double bundle ACL (Anterior Cruciate Ligament) reconstruction had been hailed as potentially allowing for more anatomically and physiologically functioning graft, however until recently there had been little evidence of enhanced functional outcomes.The aim of this study is to explore whether the dimensions of hamstring two strand single bundle grafts, are predictive of the combined four strand single bundle graft that results from combining the single bundle grafts, as well as the impact of double bundle grafts upon the available healing and attachment area within the bony tunnels.MethodsGrafts of all likely two strand single bundle graft sizes, measured to the nearest 0.5mm in diameter using unslotted sizing block, were prepared using porcine flexor tendons,. These two strand single bundles were then systematically combined, and re-measured.By geometrical calculation, the sum of the circumferences of the two, two strand double bundle grafts were compared to the combined four str...
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