Innervation of the human sternoclavicular joint.

Autor: Emura K; Faculty of Rehabilitation, Shijonawate Gakuen University, Daito, Japan.; Division of Structural Medicine and Anatomy, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan., Nitta R; Division of Structural Medicine and Anatomy, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan., Arakawa T; Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan.
Jazyk: angličtina
Zdroj: Clinical anatomy (New York, N.Y.) [Clin Anat] 2024 Aug 14. Date of Electronic Publication: 2024 Aug 14.
DOI: 10.1002/ca.24209
Abstrakt: The sternoclavicular joint (SCJ) functions as the basal joint of the entire upper limb and must move in the proper pattern for normal scapular motion. Afferent sensations from joints, such as proprioception and pain sensation, are important for maintaining the proper motion and condition of joints. Detailed anatomical data are useful for discussing injuries or surgeries that impair the afferent nerve to the SCJ. Nerve branches to SCJs were examined on 12 sides, and the subclavian nerve was investigated on six sides to clarify whether it innervates this joint. On seven of the 12 sides, the SCJ was innervated by two nerves, (1) a branch from the medial supraclavicular nerve that ran medially along the clavicle and (2) a branch from the lateral pectoral nerve that innervated the clavicular head and upper part of the sternocostal head of the pectoralis major. This branch ran medially behind the clavicular head of the pectoralis major and reached the SCJ. In the remaining five sides, the SCJ was innervated solely by the branch from the medial supraclavicular nerve. Subclavian nerves ended within the subclavius muscle or periosteum of the clavicle and were separate from the SCJs. Our data on the route of nerve branches to the SCJ suggest that injury or surgery, such as clavicle fracture or resection of the clavicular head of the pectoralis major for myocutaneous flap transfer, can impair the SCJ's afferent nerve supply.
(© 2024 American Association of Clinical Anatomists and British Association of Clinical Anatomists.)
Databáze: MEDLINE
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