Accessory fasciculi of the human pronator teres muscle: Incidence, morphological characteristics and relation to the median nerve

Nebot-Cegarra, Josep; Torre, Francisco Reina‐De La; Pérez-Berruezo, J.

doi:10.1016/s0940-9602(11)80482-6

Cited by 8 publications

(9 citation statements)

References 12 publications

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“…Barrett et al described a rare case of the presence of a third, independent head of the PT. 4 In most individuals, the MN will travel between the ulnar and humeral heads of the PT 2,3,[5][6][7]10 . Anatomic studies have reported that 72% to 95% of cadavers possess this path.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, as far as the authors are aware, this is the first reported anatomic anomaly regarding the location of the MN in a live patient. All previous studies consisted of cadaveric examination 2,3,[5][6][7] .…”

Section: Discussionmentioning

confidence: 99%

“…Anomalous forearm muscles and variations in multiple fibrous arcades have been noted 1 . Notably, multiple anomalies have been described both in PT anatomy and the passage of the MN about the PT 2,3,5-7 .…”

Section: Discussionmentioning

confidence: 99%

“…In addition, alternate paths of the MN through the forearm have been described, although they are uncommon. These alternate paths include the MN running deep to both heads of the PT and piercing entirely through either the humeral or ulnar head of the muscle 2,3,[5][6][7] . In this study, we describe a unique case of MN location in a patient presenting with PTsyndrome.…”

mentioning

confidence: 99%

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Unusual Anatomic Location of the Median Nerve Within the Pronator Teres Muscle

Yarbrough¹,

Chan²,

Tan³

2022

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Case:A 57-year-old man presented with pain and paresthesia in both hands and was diagnosed with pronator teres syndrome. Surgical decompression of the left elbow and forearm revealed the median nerve in an unusual anatomic location, specifically running within the pronator teres muscle.Conclusion:Anatomic anomalies of the pronator teres muscle and the path of the median nerve have been described. However, there are no reports of the median nerve entering and traveling within the pronator teres. Surgeons should be aware of this anomaly to avoid potential iatrogenic injury when performing an anterior surgical approach to the elbow and proximal forearm.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Unusual Anatomic Location of the Median Nerve Within the Pronator Teres Muscle

Yarbrough¹,

Chan²,

Tan³

2022

JBJS Case Connector

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“…34 Anatomical variations of the pronator teres muscle, particularly of the deep head, also predispose patients to median nerve compression. 35 Several additional musculotendinous, ligamentous, osseous, and vascular structures exist that may extrinsically compress the median nerve and may cause the symptoms of pronator syndrome.…”

Section: Median Nerve: Anterior Interosseous Nerve Syndromementioning

confidence: 99%

Imaging of Nerve Disorders in the Elbow

Gunio

Babaa

Bencardino

2022

Semin Musculoskelet Radiol

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Neuropathies of the elbow represent a spectrum of disorders that involve more frequently the ulnar, radial, and median nerves. Reported multiple pathogenic factors include mechanical compression, trauma, inflammatory conditions, infections, as well as tumor-like and neoplastic processes. A thorough understanding of the anatomy of these peripheral nerves is crucial because clinical symptoms and imaging findings depend on which components of the affected nerve are involved. Correlating clinical history with the imaging manifestations of these disorders requires familiarity across all diagnostic modalities. This understanding allows for a targeted imaging work-up that can lead to a prompt and accurate diagnosis.

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The biceps brachii muscle and its distal insertion: observations of surgical and evolutionary relevance

et al. 2009

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The investigation revealed anatomical variations including supernumerary heads (20%) and 'fusion' of the muscle proximal to tendon formation and a spiralling arrangement of the tendon in its approach to the radial tuberosity. The data from the present study was reviewed in the context of previous studies on the anatomy of this muscle and speculation on the evolutionary basis of the variations and their clinical implications are discussed.

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Accessory fasciculi of the human pronator teres muscle: Incidence, morphological characteristics and relation to the median nerve

Cited by 8 publications

References 12 publications

Unusual Anatomic Location of the Median Nerve Within the Pronator Teres Muscle

Unusual Anatomic Location of the Median Nerve Within the Pronator Teres Muscle

Imaging of Nerve Disorders in the Elbow

The biceps brachii muscle and its distal insertion: observations of surgical and evolutionary relevance

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