Background: This study assessed the feasibility of anatomical coracoclavicular (CC) ligaments reconstruction, using three-dimensional (3D) measurement and virtual drilling.
Methods: One-hundred-and-five 3D shoulder models were constructed using SuperImage software, based on computed tomography (CT) scan data. For each model the attachment sites and footprint dimensions of the CC ligaments were defined and adjusted according to constant anatomical ratios and individual measurement results. Different drilling techniques and 3D measurements were carried out separately on each model.
Results: The collinear drilling technique with one bundle was used to breach the clavicle and/or coracoid process bone cortex in 38 of 105 models (36.2%); the percentage with two bundles was 90.5% (95/105). No cortical breach was observed using the non-collinear drilling technique.
Conclusions: The non-collinear drilling technique provides the capability to prepare bony tunnels without any risk of cortical breach.
Keywords: acromioclavicular joint; anatomical reconstruction; computer modelling; coracoclavicular ligaments; drilling technique.
Copyright © 2014 John Wiley & Sons, Ltd.