The absent musculocutaneous nerve: A systematic review

Hunter, Dawn D.; Zdilla, Matthew J.

doi:10.1016/j.tria.2020.100092

Cited by 4 publications

(6 citation statements)

References 34 publications

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“…In the present study, the reverse was observed; the intercommunicating branch arose from the MCN and joined the MN in 35% of arms. Similar to Uysal et al, a branch originating from the communicating branch between the musculocutaneous nerve and the median nerve to the brachialis was seen in this study in only a single arm [16,32]. Choi et al detected that in 26.4% of cases, there was communicating branches or fusion of the MCN and MN [8,16].…”

Section: Patterns Of Communication Between Musculocutaneous and Media...supporting

confidence: 86%

“…Similar to Uysal et al, a branch originating from the communicating branch between the musculocutaneous nerve and the median nerve to the brachialis was seen in this study in only a single arm [16,32]. Choi et al detected that in 26.4% of cases, there was communicating branches or fusion of the MCN and MN [8,16]. The communicating branches were classified into three patterns;…”

Section: Patterns Of Communication Between Musculocutaneous and Media...supporting

confidence: 82%

“…The measurements that were carried on the exit point of the first branch to biceps and brachialis muscles are specified in past reports [12]. In this study the methodology described by Yang et al and Elgammal et al was applied, which uses the coracoid process of the scapula and the medial epicondyle of the humerus as reference points for these measurements was followed [12,35] [16,26,35]. An additional type to those described by Yang et al was seen in a single specimen (5%) in this study, where there were three branches innervating the brachialis muscle, these branches originated also from the main trunk of MCN [9,14,35].…”

Section: Patterns Of Communication Between Musculocutaneous and Media...mentioning

confidence: 99%

“…Variations of the musculocutaneous nerve and its branches are common, these variations have been described in human by many authors [14,16,23,27,29] but such variations have not been extensively cataloged. This study was conducted to demonstrate the anatomical variations in the origin, course, distribution, and branching pattern of the musculocutaneous nerve in the axilla and arm and to define the intercommunications with the median nerve in the human male adult cadavers to prevent lesions during surgical procedures.…”

Section: Introductionmentioning

confidence: 99%

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The pattern of branching and intercommunications of the musculocutaneous nerve for surgical issues: anatomical study

et al. 2023

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Section: Patterns Of Communication Between Musculocutaneous and Media...supporting

confidence: 86%

Section: Patterns Of Communication Between Musculocutaneous and Media...supporting

confidence: 82%

Section: Patterns Of Communication Between Musculocutaneous and Media...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The pattern of branching and intercommunications of the musculocutaneous nerve for surgical issues: anatomical study

et al. 2023

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“…After exiting the axilla, it perforates the coracobrachialis muscle and continues between the biceps brachii and brachialis muscles, supplying them with motor innervations and emerging as lateral cutaneus nerve of the forearm (2). The prevalence of limb musculocutaneous nerve absence ranged from 1.66% to 13.33% (3). The absence of the musculocutaneous nerve was found in 8% of the 24 dissected cases (4).…”

Section: Introductionmentioning

confidence: 99%

Absence of the Musculocutaneous Nerve; Two Case Reports and Literature Review

Abdelmotalab

2024

Al-Kindy Col. Med. J

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The musculocutaneous nerve is important in the upper extremity because it provides motor innervation to the musculature of the anterior arm region and sensory innervation to the skin on the lateral side of the forearm region. During the dissection of approximately 74 aged male cadaver for the 2021-2022 academic year at the Department of Anatomy, Faculty of Medicine, International University of Africa, Sudan. Considerable variation was present; the musculocutaneous nerve was observed to be absent in both upper extremities. The median nerve replaces the musculocutaneous nerve innervation’s role on both sides except for the coracobrachialis muscle on the right side. A direct branch from the lateral cord innervated it. Reporting these variations has a critical impact on many surgical and clinical procedures.

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Rare median and musculocutaneous nerve fusion with intraoperative electrical confirmation: illustrative case

Huang,

Vazquez,

Dominguez

et al. 2023

Journal of Neurosurgery: Case Lessons

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BACKGROUND Nerve transfer is a surgical technique in which a redundant or expendable fascicle is transferred or coapted to an injured nerve distal to the site of injury for the purpose of reinnervation. Successful nerve transfer is dependent on correct intraoperative identification of donor and recipient nerves. OBSERVATIONS An 8-year-old male was recommended for ulnar nerve fascicle to biceps branch of musculocutaneous nerve transfer to restore elbow flexion weakness after a demyelinating spinal cord injury. The biceps branch was identified approximately midway along the upper arm. Proximal musculocutaneous nerve stimulation induced hand movement and electromyography activity in the median nerve muscles. Neurolysis of the thickened proximal structure revealed fusion of the musculocutaneous and median nerves. Because of the proximity of the median and musculocutaneous nerves, median rather than ulnar nerve fascicles were used as donors for transfer. LESSONS The authors provide the first reported intraoperative finding of an anatomical variant in which the musculocutaneous nerve and median nerve were fused in the upper arm, confirmed through intraoperative electrical stimulation. Surgeons should be aware of this rare anatomical variant to ensure correct nerve identification when performing nerve transfers in the proximal upper extremity.

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The absent musculocutaneous nerve: A systematic review

Cited by 4 publications

References 34 publications

The pattern of branching and intercommunications of the musculocutaneous nerve for surgical issues: anatomical study

The pattern of branching and intercommunications of the musculocutaneous nerve for surgical issues: anatomical study

Absence of the Musculocutaneous Nerve; Two Case Reports and Literature Review

Rare median and musculocutaneous nerve fusion with intraoperative electrical confirmation: illustrative case

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