Anatomic Study of the Nervous Communication Between the Median and Musculoucutaneous Nerve

Caetano, Edie Benedito; Vieira, Luiz Ângelo; Cavalheiro, Cristina Schmitt; Filho, Mauro Razuk; Almargo, Marco Antonio Pires; Caetano, Maurício Ferreira

doi:10.1590/1413-785220162404159372

Cited by 14 publications

(15 citation statements)

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“…All included studies were performed on cadavers. Among 20 studies that specified the age of cadavers (fetus or adult), five studies (Uysal et al, ; Kervancioglu et al, ; Woźniak et al, ; Reis et al, ; Caetano et al, ) dissected fetuses, one study (Guerri‐Guttenberg and Ingolotti, ) included both fetuses and adults, while 14 studies dissected only adult cadavers (Chiarapattanakom et al, ; Aktan et al, ; Choi et al, ; Beheiry, ; Loukas and Aqueelah, ; Pacha Vicente et al, ; Maheswari and Sadanandam, ; Pozo Kreilinger et al, ; Budhiraja et al, ; Sawant et al, ; Chaudhary et al, ; Ballesteros et al, ; Cambon‐Binder and Leclercq, ; Leng et al, ). Only in eight studies, the variations were described together with information about the sex of individual cadavers in whom they were encountered.…”

Section: Resultsmentioning

confidence: 99%

Prevalence of musculocutaneous nerve variations: Systematic review and meta‐analysis

et al. 2018

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We aimed to establish the prevalence of the musculocutaneous nerve (MCN) variations and the probability of the variation being pure or mixed in the same plexus. We applied the principles of evidence-based anatomy to find, appraise, and synthesize data through a meta-analysis of anatomical studies. The variations were grouped based on the presence and location of the communicating branch with the median nerve and the origin of branches to anterior arm muscles. Forty-three cadaveric studies met the inclusion criteria, providing data from 4124 plexuses. The overall pooled prevalence of plexuses with MCN variations was 20%. Based on the classification applied in our study, the pooled prevalence of variations was 17% in region 1A, 20% in region 1B, 36% in region 2 and 49% in region 3. Importantly, 64.58% of variations in region 1A and 74.14% of variations in region 1B were mixed, that is, associated with a variation in another region. The odds of finding another variation in the presence of a variation in region 2 or 3 were equal 0.37 and 0.52, respectively, demonstrating a significantly lower probability of finding mixed variations involving these regions, when compared with region 1A. Variations of the MCN are most common in the part distal to the exit from within or beneath the coracobrachialis muscle. Proximal variations are more often associated with another variation located along the nerve. These findings can assist health care professionals in the treatment of brachial plexus lesions. Clin. Anat., 2018. © 2018 Wiley Periodicals, Inc.

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Section: Resultsmentioning

confidence: 99%

Prevalence of musculocutaneous nerve variations: Systematic review and meta‐analysis

et al. 2018

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“…The musculocutaneous nerve test was used as a surrogate test for the lateral cord, where the lateral pectoral nerve is of most interest. Since anastomoses between the median and musculocutaneous nerves 13 may interfere with sensory testing of the lateral cord, the lateral cord block was judged with both a sensory and a muscle power score.…”

Section: Methodsmentioning

confidence: 99%

A combination of infraclavicular and suprascapular nerve blocks for total shoulder arthroplasty: A case series

Musso

Klaastad

Ytrebø

2021

Acta Anaesthesiol Scand

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“…This anatomical variation should be considered during the neurotization procedure of the musculocutaneous nerve for the restoration of elbow flexion. Caetano et al[4] (2016) observed in a study conducted on 40 specimens of upper limb that 10 specimens showed communication between median and musculocutaneous nerve. In the present study out of 72 specimens, four upper limbs showed communication between median and musculocutaneous nerve.…”

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confidence: 99%

“…Chouhan et al[8] 2002 India Case study -Sachdeva K. et al[9] 2011 India Case study -B. Caetano et al[4] 2016 Brazil 40 25…”

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confidence: 99%

A Study of Variation in Median Nerve Formation in Cadavers

Ranjan¹,

Bhuiyan²

2020

IJAR

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Background: Median nerve is the nerve of the flexor compartment of forearm. Variations in the formation of median nerve is common. Knowledge of such variations is important for the evaluation of nerve injuries in upper limb region.Materials & methods: The study was done on 36 formalin fixed cadavers (72 upper limbs). The pattern of formation of median nerve in axilla was observed after performing meticulous dissection.Observations: Out of total 72 specimens, 67 upper limbs (93.06%) showed formation of median nerve by the fusion of two roots while in the remaining five specimens (6.94%), median nerve was formed by three roots. Out of those five specimens, all of them showed median nerve formation by two medial and one lateral root. Out of the total 72 specimens, three specimens showed communication between median and musculocutaneous nerve in the arm region and two specimens showed absence of musculocutaneous nerve. Conclusion:This study has described the normal way of formation of median nerve as well as the variations in its roots of formation.

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Anatomic Study of the Nervous Communication Between the Median and Musculoucutaneous Nerve

Cited by 14 publications

References 11 publications

Prevalence of musculocutaneous nerve variations: Systematic review and meta‐analysis

Prevalence of musculocutaneous nerve variations: Systematic review and meta‐analysis

A combination of infraclavicular and suprascapular nerve blocks for total shoulder arthroplasty: A case series

A Study of Variation in Median Nerve Formation in Cadavers

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