• Injury · Dec 2014

    Clavicular caution: An anatomic study of neurovascular structures.

    • Luke Robinson, Federico Persico, Eric Lorenz, and David Seligson.
    • Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, KY, USA. Electronic address: Lukas079@gmail.com.
    • Injury. 2014 Dec 1;45(12):1867-9.

    AbstractOpen reduction and internal fixation of the clavicle is used to treat displaced fractures of the midshaft of the clavicle. Complications of operative intervention include injuries to major neurovascular structures including the subclavian artery and vein. Unlike other surgical approaches, palpation or visualization of the deep neurovascular structures at risk is rarely performed and is not part of the routine approach. This study aims to further elucidate the relationship of major neurovascular structures in the shoulder to the clavicle using sectioned fresh frozen cadaveric specimens. Using five cadaveric specimens, sagittal sections were performed using a band saw. Sections were taken every 15mm. Using these sections, structures were identified and photos were taken using a standardized approach to allow for precise and accurate measurements. Measurements taken included the distance from the nearest clavicular cortex to the centre of the subclavian artery, vein, and brachial plexus. These measurements were taken from five limbs on five different cadavers. Our results were consistent with previous studies. Medially, the subclavian vein was intimately related medially (4.8mm) to the clavicle, whereas the artery and brachial plexus were both >2cm from the clavicle. At about the junction of the middle and second-thirds of the clavicle, all three structures were within 2cm of the clavicle. Moving laterally, these structures moved further away and at the acromioclavicular (AC) joint were at least 4.5cm away from the clavicle on average. This study reiterates that the medial third of the clavicle is closely associated with neurovascular structures and that care should be taken here when using drills, depth gauges, and clamps.Copyright © 2014 Elsevier Ltd. All rights reserved.

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