To better understand the role of ligaments in canine shoulder joint stability, the presence of mechanoreceptors in the medial (MGHL) and lateral (LGHL) glenohumeral ligaments was detected by means of a modified gold chloride stain. Three morphologically distinct mechanoreceptors were identified: Ruffini receptors (type I endings), Pacinian corpuscles (type II endings) and Golgi tendon organ-like receptors (type III endings). These receptors are mainly localized at each end of the ligaments and prevalently in their glenoid portion. In particular, in the MGHL the highest density was at the cranial arm of the insertion into the scapula. The variety of mechanoreceptors in canine shoulder ligaments might indicate an afferent function in providing the CNS with joint proprioceptive information. Therefore, besides acting as passive mechanical stabilizers, the MGHL and the LGHL may serve as sensory structures, contributing actively to joint stability. Ligamentous injuries which occur in shoulders not only affect mechanical restraint but also alter the proprioceptive input to the CNS by means of disruption of the mechanoreceptors.

Grandis A., Spadari A., Bombardi C., Casadio Tozzi A., De Sordi N., Lucchi M.L. (2007). Mechanoreceptors in the medial and lateral glenohumeral ligaments of the canine shoulder joint. VETERINARY AND COMPARATIVE ORTHOPAEDICS AND TRAUMATOLOGY, 20(4), 291-295 [10.1160/VCOT-07-01-0005].

Mechanoreceptors in the medial and lateral glenohumeral ligaments of the canine shoulder joint

GRANDIS, ANNAMARIA;SPADARI, ALESSANDRO;BOMBARDI, CRISTIANO;DE SORDI, NADIA;LUCCHI, MARIA LUISA
2007

Abstract

To better understand the role of ligaments in canine shoulder joint stability, the presence of mechanoreceptors in the medial (MGHL) and lateral (LGHL) glenohumeral ligaments was detected by means of a modified gold chloride stain. Three morphologically distinct mechanoreceptors were identified: Ruffini receptors (type I endings), Pacinian corpuscles (type II endings) and Golgi tendon organ-like receptors (type III endings). These receptors are mainly localized at each end of the ligaments and prevalently in their glenoid portion. In particular, in the MGHL the highest density was at the cranial arm of the insertion into the scapula. The variety of mechanoreceptors in canine shoulder ligaments might indicate an afferent function in providing the CNS with joint proprioceptive information. Therefore, besides acting as passive mechanical stabilizers, the MGHL and the LGHL may serve as sensory structures, contributing actively to joint stability. Ligamentous injuries which occur in shoulders not only affect mechanical restraint but also alter the proprioceptive input to the CNS by means of disruption of the mechanoreceptors.
2007
Grandis A., Spadari A., Bombardi C., Casadio Tozzi A., De Sordi N., Lucchi M.L. (2007). Mechanoreceptors in the medial and lateral glenohumeral ligaments of the canine shoulder joint. VETERINARY AND COMPARATIVE ORTHOPAEDICS AND TRAUMATOLOGY, 20(4), 291-295 [10.1160/VCOT-07-01-0005].
Grandis A.; Spadari A.; Bombardi C.; Casadio Tozzi A.; De Sordi N.; Lucchi M.L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/51355
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