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Transtendinous course of the infrapatellar branch of saphenous nerve. A contribution to the aetiology of entrapment neuropathy and modification of the existing classification

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Natsis K., Konstantinidis G., Geropoulos G., Totlis T., Lazaridis N., Tegos T.

Folia Morphologica

2016

tom 75

nr 4

Background: The course of the infrapatellar branch of saphenous nerve (IPBSN) in relation to the Sartorius muscle has been classified into presartorial, transsartorial and retrosartorial types. Mechanical compression of the IPBSN within the Sartorius tendon has been surgically recognised as a cause of entrapment neuropathy. Purpose of the present study was to differentiate the IPBSNs penetrating the Sartorius tendon from those penetrating the Sartorius muscle, from an anatomical and clinical point of views and thus modifying the existing classification. Materials and methods: The IPBSN was bilaterally dissected in 27 cadavers. The cases of the IPBSNs penetrating the Sartorius tendon were recorded separately from those penetrating the Sartorius muscle belly. Results: In 11 out of 54 limbs (20.4%) the IPBSN ran through the Sartorius muscle belly. In 3 out of 54 (5.6%) limbs, the IPBSN penetrated the Sartorius tendon. Conclusions: The penetrating type of IPBSN includes two distinct subtypes: the muscle-penetrating type and the tendon-penetrating type. These subtypes are also distinct from a clinical point of view, since only the tendon-penetrating type has been associated with the IPBSN entrapment neuropathy. According to these findings we suggest a modification of the current classification. Further clinical studies are necessary to fully demonstrate whether the tendon-penetrating type should be considered as a predisposing factor for the IPBSN entrapment neuropathy. Distinguishing the two subtypes might be helpful for that purpose. (Folia Morphol 2016; 75, 4: 481–485)

The size of the foramen ovale regarding to the presence and absence of the emissary sphenoidal foramen: is there any relationship between them?

100%

Natsis K., Piagkou M., Repousi E., Tegos T., Gkioka A., Loukas M.

Folia Morphologica

2018

tom 77

nr 1

Background: The study investigates the size of the foramen ovale (FO) in relation to the presence and absence of the emissary sphenoidal foramen (ESF). Any possible alteration of the FO size in relation to the ESF (unilateral or bilateral) presence and absence was also examined. Materials and methods: One-hundred and ninety-five (117 male and 78 female) Greek adult dry skulls were investigated. Results: The ESF was present in 40% of the skulls (21.5% bilaterally and 18.5% unilaterally). No statistical significant difference was detected between ESF presence or absence and its unilateral or bilateral occurrence. The ESF existence had no relation to the FO size. Conclusions: The ESF absence or presence has no effect on FO size. The emissary sphenoidal vein is an additional venous pathway connecting cavernous sinus with the pterygoid venous plexus. These findings enhance that the venous plexus of the FO is a constant trait. The meticulous knowledge of the middle cranial fossa anatomy is of paramount importance during transovale procedures, as the outcome of cannulation may be affected by the existence of ESF, the confluence FO-ESF, the existence of osseous spurs and bridging into the FO. (Folia Morphol 2018; 77, 1: 90–98)

Ograniczanie wyników

2 Folia Morphologica

2 Natsis K.

2 Tegos T.

1 Geropoulos G.

1 Gkioka A.

1 Konstantinidis G.

1 Lazaridis N.

1 Loukas M.

1 Piagkou M.

1 Repousi E.

1 Totlis T.

1 2018

1 2016

Wyniki wyszukiwania

Transtendinous course of the infrapatellar branch of saphenous nerve. A contribution to the aetiology of entrapment neuropathy and modification of the existing classification

The size of the foramen ovale regarding to the presence and absence of the emissary sphenoidal foramen: is there any relationship between them?