The quantitative anatomical relationships of the main ligamentous, tendinous, and osseous structures of the sternoclavicular joint have not been widely investigated. The purpose of this study was to provide a quantitative description of the sternoclavicular joint in relation to relevant surgical landmarks.

The clavicular pectoralis ridge can be used as an intraoperative guide for clavicle orientation and tunnel placement in sternoclavicular ligament reconstruction. Sternoclavicular joint resection arthroplasty should avoid injuring the costoclavicular ligament, which is the largest sternoclavicular joint ligament. Resection of only the anteroinferior aspect of the medial end of the clavicle may provide adequate decompression while preserving the stability of the clavicle. The location of the sternohyoid and sternothyroid musculotendinous insertions appear to provide a ‘‘safe zone’’ for posterior clavicle and manubrial dissection.

Surgical Anatomy of the Sternoclavicular Joint: A Qualitative and Quantitative Anatomical Study

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