The superficial anatomical landmarks are not reliable for predicting the recurrent branch of the median nerve

Kunc, Vojtěch; Stulpa, Michal; Feigl, Georg; Neblett, Carlos; Kunc, Vladimír; Kachlík, David

doi:10.1007/s00276-020-02475-x

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…They described an aberrant muscle stretched between the medial border of the olecranon, connected with the adjacent tendon of the triceps brachii muscle, and the medial epicondyle of the humerus, but this definition refers to a variant muscle called anconeus epitrochlearis or epitrochleoanconeus muscle. It occurs in about 1-29% of individuals and it is known to cause ulnar nerve compression (Kunc et al, 2023).…”

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confidence: 99%

“…The complex insertional anatomy of the triceps brachii muscle is of high clinical significance. Most frequently, the triceps brachii muscle is split or completely reflected during open reduction and internal fixation of fractures concerning the distal portion of the humerus or olecranon(Kunc et al, 2023). Also, traumatic ruptures ofF I G U R E 3 Deeply located muscular fibres (arrows) shown in transversal PDw-TSE image of a 23-year-old female (a) and in sagittal T1-TSE image of a 19-year-old male (b).…”

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Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

et al. 2023

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Although the term articularis cubiti muscle is incorporated in the official anatomical nomenclature, only sparse data about its appearance are available. It is usually described as few fibres originating from the medial head of the triceps brachii muscle and inserting to the capsule of the elbow joint. However, the most recent observations regarding the morphological relations in the posterior elbow region point towards the absence of a well‐defined muscle. Therefore, this study was designed to verify the existence of the articularis cubiti muscle in question and to compile more data on the topographical features of the subtricipital area near the posterior aspect of the elbow. To address these questions, 20 embalmed upper limbs were dissected, and seven samples were collected for histological analysis. The laboratory findings were then correlated with 20 magnetic resonance imaging (MRI) scans of the elbow. Consequently, a narrative review of literature was performed to gain more information on the discussed muscle in a historical context. Upon the anatomical dissection, muscular fibres running from the posterior aspect of the shaft of the humerus to the elbow joint capsule and olecranon were identified in 100% of cases. Histologically, the connection with the joint capsule was provided via winding bands of connective tissue. On MRIs, the muscular fibres resembled a well‐demarcated thin muscle located underneath the medial head of the triceps brachii muscle. Combined with the review of literature, we concluded that the constant articularis cubiti muscle originates from the posterior shaft of the humerus and attaches indirectly to the posterior aspect of the elbow joint capsule and directly to the superior portion of the olecranon. The obtained results slightly differ from the modern description, but are in agreement with the original publication, which has become misinterpreted throughout time. Presumably, the misused description has led to questioning the existence of an independent muscle. Moreover, our findings attribute to the articularis cubiti muscle, a function in pulling on the posterior aspect of the elbow joint capsule to prevent its entrapment, and possibly also a minor role in extension of the forearm. The presented results should be taken into consideration when intervening with the posterior aspect of the elbow joint because the articularis cubiti muscle poses a consistently appearing landmark.

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Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

et al. 2023

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Base of the Third Metacarpal as a Palpable and Reliable Landmark for Identifying the Median Nerve’s Thenar Branch

Bertelli¹,

Buitrago²,

Shah³

2023

The Journal of Hand Surgery

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Anatomical Variation of the Recurrent Motor Branch of the Median Nerve

Ahmed,

Tuffaha

2024

Hand (New York, N,Y.)

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The recurrent motor branch (RMB) of the median nerve has commonly thought to originate proximal to the terminal digital branches, although its anatomical course and number may vary. We report a rare variation of the RMB that arose from the second common palmar digital nerve. The median nerve bifurcated into the first and second common palmar digital nerves distal to the transverse carpal ligament, with the RMB dividing from the second common palmar digital nerve and traveling retrograde to enter the abductor pollicis brevis muscle. This high origin variation may be at increased risk of injury during procedures of the hand.

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The superficial anatomical landmarks are not reliable for predicting the recurrent branch of the median nerve

Cited by 3 publications

References 12 publications

Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

Base of the Third Metacarpal as a Palpable and Reliable Landmark for Identifying the Median Nerve’s Thenar Branch

Anatomical Variation of the Recurrent Motor Branch of the Median Nerve

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