Variability of the pronator teres muscle and its clinical significance

VYMAZALOVÁ, Kateřina, Lenka VARGOVÁ and Marek JOUKAL. Variability of the pronator teres muscle and its clinical significance. Romanian journal of morphology and embryology. Bucurest: Editura Academiei Romane, 2015, vol. 56, No 3, p. 1127-1135. ISSN 1220-0522.

Basic information

Original name

Variability of the pronator teres muscle and its clinical significance

Authors

VYMAZALOVÁ, Kateřina (203 Czech Republic, guarantor, belonging to the institution), Lenka VARGOVÁ (203 Czech Republic, belonging to the institution) and Marek JOUKAL (203 Czech Republic, belonging to the institution)

Edition

Romanian journal of morphology and embryology, Bucurest, Editura Academiei Romane, 2015, 1220-0522

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Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Romania

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 0.811

RIV identification code

RIV/00216224:14110/15:00085097

Organization unit

Faculty of Medicine

UT WoS

000366837600028

Keywords in English

anatomical variability; entepicondylar foramen; entrapment syndrome; median nerve; pronator teres muscle; supra- condylar process

Tags

EL OK

Tags

International impact, Reviewed

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Abstract

V originále

While investigating the cause of entrapment syndrome of the peripheral nerves in the elbow region, we observed variability of t he pronator teres muscle and the relationship of this muscle to the median nerve and the surrounding vessels. Attention was also paid to th e occurrence of the supracondylar process of the humerus and Struthers’ ligament with regard to their ontogenetic and phylogenetic development. For this purpose, a classical anatomical dissection of the upper limbs of 68 adults, three fetuses and a phylogenetic assessment of five mammalian species was performed. In terms of variability in the anatomical structures of the elbow region, we found the most serious clin ical condition to be where the median nerve ran through the pronator canal together with the ulnar vessels (1.5%), or when it passed through t he ulnar head of the pronator teres (5.9%). The pronator teres examined by us in fetuses showed the same arrangement as in adult individ uals, including the created ulnar head. The occurrence of a supracondylar process and Struthers’ ligament was not observed in our col lection. The presence of these structures was not confirmed during the fetal period, either. The phylogenetic part of the study re-opene d the question of the meaning and function of the entepicondylar foramen, because we noted differences in the occurrence of this structure in two related genera with a very similar way of life (Djungarian hamster and golden hamster).