Home
Resources
Publications
Sensory Innervation of the Subacromial Bursa by the Distal Suprascapular Nerve: A New Description of Its Anatomic Distribution

Sensory Innervation of the Subacromial Bursa by the Distal Suprascapular Nerve: A New Description of Its Anatomic Distribution

Pierre Laumonerie, Laurent Blasco, Meagan E Tibbo, Nicolas Bonnevialle, Marc Labrousse, Patrick Chaynes, Pierre Mansat

J Shoulder Elbow Surg. 2019 Sep;28(9):1788-1794.

PMID: 31036420

Abstract:

Background:
Sensory innervation to the shoulder provided by the distal suprascapular nerve (dSSN) remains the subject of debate. The purpose of this study was to establish consensus with respect to the anatomic features of the sensory branches of the dSSN. The relevant hypothesis was that the dSSN would give off 3 sensory branches providing innervation to the posterior glenohumeral (PGH) capsule, the subacromial bursa, in addition to the coracoclavicular and acromioclavicular ligaments.
Methods:
The division, course, and distribution of the sensory branches that originated from the dSSN and innervated structures around the shoulder joint were examined macroscopically by dissecting 37 shoulders of 19 fresh-frozen cadavers aged of 83.0 years (range, 74-98 years).
Results:
The 37 dSSN provided 1 medial subacromial branch (MSAb), 1 lateral subacromial branch (LSAb), and 1 PGH branch (PGHb) to the shoulder joint. This arrangement allowed for bipolar-MSAb and LSAb-innervation of the subacromial bursa, acromioclavicular (MSAb and LSAb) and coracoclavicular (MSAb) ligaments, as well as the PGH capsule (PGHb).
Conclusions:
The dSSN provided 2 subacromial branches and 1 PGHb to the shoulder joint. This arrangement allowed for bipolar-MSAb and LSAb-innervation of the subacromial bursa, acromioclavicular and coracoclavicular ligaments, as well as the PGH capsule.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP173436663	MSAB		173436-66-3	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: