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Anatomic Sites of Origin of the Suprascapular and Lateral Pectoral Nerves within the Brachial Plexus
- Source :
- Plastic and Reconstructive Surgery. 133:20e-27e
- Publication Year :
- 2014
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2014.
-
Abstract
- Background The goal of this study was to clarify the anatomical origins of the suprascapular and lateral pectoral nerves from the brachial plexus as an aid to surgical exploration. Methods Both nerves were studied in 100 adult cadaver specimens. Topographic points of origin were described as distance from the bifurcation of the upper trunk or distance from the formation point of the lateral cord, using visual anatomical models. Results The suprascapular nerve originated from (1) the posterior division of the upper trunk distal to the bifurcation of the upper trunk (61 specimens); (2) the point of upper trunk bifurcation (29 cases); (3) the upper trunk proximal to the bifurcation point (six cases); and (4) directly from the C5 root (four cases). The lateral pectoral nerve originated from (1) the anterior division of the upper trunk proximal to the point of lateral cord formation (88 cases); (2) the point of lateral cord formation (five cases); (3) the lateral cord distal to the lateral cord formation point (four cases); and (4) the anterior division of the middle trunk (three cases). Eighty-two cases had origins from both the anterior upper trunk and the anterior middle trunk. Conclusions The suprascapular nerve most frequently originates from the posterior division of the upper trunk, and the lateral pectoral nerve from the anterior divisions of the upper and middle trunks. This information can be used to guide the surgeon in identifying the key landmarks of the supraclavicular brachial plexus at surgical exploration.
- Subjects :
- Male
Shoulder
Dissection (medical)
medicine.nerve
Upper trunk
Cadaver
Humans
Medicine
Brachial Plexus
Brachial Plexus Neuropathies
Aged
Thoracic Nerves
Lateral pectoral nerve
business.industry
Dissection
Torso
Anatomy
Lateral cord
Suprascapular nerve
medicine.disease
Trunk
medicine.anatomical_structure
Cervical Vertebrae
Female
Surgery
Spinal Nerve Roots
business
Brachial plexus
Subjects
Details
- ISSN :
- 00321052
- Volume :
- 133
- Database :
- OpenAIRE
- Journal :
- Plastic and Reconstructive Surgery
- Accession number :
- edsair.doi.dedup.....4e152d49d05f167c53624891f8e10bf8