Anatomical variability and histological structure of the ulnar nerve in the Guyon’s canal

Depukat, Paweł; Henry, Brandon Michael; Popieluszko, Patrick; Roy, Joyeeta; Mizia, Ewa; Konopka, Tomasz; Tomaszewski, Krzysztof A.; Walocha, Jerzy

doi:10.1007/s00402-016-2616-4

Cited by 21 publications

(20 citation statements)

References 13 publications

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“…The superficial branch of the ulnar nerve innervates the palmaris brevis muscle. The deep branch splits into its terminal branches innervating the hypothenar area, the lumbericals and interosseous muscles 3. The transverse portion of adductor pollicis (AP) and first dorsal interosseous (FDI) are the last muscles innervated by the ulnar nerve.…”

Section: Introductionmentioning

confidence: 99%

<p>Electrodiagnostic Findings in 441 Patients with Ulnar Neuropathy - a Retrospective Study</p>

Raeissadat

Youseffam

Bagherzadeh

et al. 2019

ORR

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PurposeUlnar neuropathy (UN) is the second most common focal neuropathy in the upper extremities. Electrodiagnostic studies (EDx), including nerve conduction study (NCS) and electromyography (EMG), are reliable tools for the diagnosis of ulnar neuropathy. We aimed to retrospectively analyze the medical records of patients diagnosed with ulnar neuropathy in a seven-year period and report our findings.Patients and methodsIn this retrospective study, documents of the patients whose ulnar nerve injury was confirmed through electrodiagnostic study in two departments of Physical Medicine and Rehabilitation were collected and demographic data, subjective complaints of the patient, the cause, and electrodiagnostic findings were extracted from each patient’s file. The following points were specifically evaluated in the electrodiagnostic records; type of injury, location, accompanying injuries, sensory nerve action potentials (SNAP) of the fifth finger, SNAP of dorsal ulnar cutaneous nerve (DUCN), compound muscle action potential (CMAP) of abductor digiti minimi (ADM) muscle, nerve conduction velocity (NCV) across elbow, patterns of muscle involvement, and the severity of insult.ResultsOut of 441 records, 305 (69.2%) were male and 68.1% were non-traumatic. Based on our clinical criteria, the intensity of the injury was mild in most cases. The elbow and forearm were the most involved regions in non-traumatic and traumatic cases respectively. Across elbow nerve conduction velocity showed decreased velocity in 71% of records. In non-traumatic cases, the most affected muscle was ADM (97%) and then FDI (85%).ConclusionIn focal entrapments such as ulnar neuropathy, electrodiagnostic findings are very helpful in assessing location, severity, and type of injury. If a consensus is achieved for the diagnosis of UN, even retrospective studies can become valuable sources for studying UN.

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Section: Introductionmentioning

confidence: 99%

<p>Electrodiagnostic Findings in 441 Patients with Ulnar Neuropathy - a Retrospective Study</p>

Raeissadat

Youseffam

Bagherzadeh

et al. 2019

ORR

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“…Finally, we came across reports of anatomical research that used tissues or organs acquired during forensic autopsy. 21 We found no evidence, however, that this source was ever used for educational purposes.…”

Section: Findings On Current Practicesmentioning

confidence: 64%

Bodies for Anatomy Education in Medical Schools: An Overview of the Sources of Cadavers Worldwide

Kiessling²,

2018

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“…In the literature, there are reports of some incompatibilities concerning the differences of conduction values between left and right hands. [23][24][25] We examined only right-handed volunteers. This allowed us to exclude the possible differences between right and left hands as dominant ones.…”

Section: Discussionmentioning

confidence: 99%

“…In the literature, there are reports of some incompatibilities concerning the differences of conduction values between left and right hands . We examined only right‐handed volunteers.…”

Section: Discussionmentioning

confidence: 99%

Use of collision tests to identify physiological differences between the median and ulnar nerves

et al. 2019

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Introduction: Median and ulnar nerves are used in comparative electrophysiological studies. We analyzed the conduction values in these hand nerves in healthy volunteers to find any physiological differences between them. Methods: We performed standard conduction studies and conduction velocity distribution (CVD) tests with estimation of 3 quartiles in 31 healthy right‐handed volunteers (17 women, 14 men) with a mean age of 44.8 ± 15.5 years. Results: The conduction velocities in all quartiles of CVD tests were statistically faster in the ulnar nerve (P < 0.00001), with no differences in the spread of conduction values and no differences between sides. In the ulnar nerve, CVD velocities in all quartiles were faster in the female group (P < 0.05). Discussion: The ulnar nerve has more fibers conducting with high velocities than does the median nerve. Electrophysiological comparisons between hand nerves must be performed carefully. Muscle Nerve 59:470–474, 2019

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Anatomical variability and histological structure of the ulnar nerve in the Guyon’s canal

Cited by 21 publications

References 13 publications

<p>Electrodiagnostic Findings in 441 Patients with Ulnar Neuropathy - a Retrospective Study</p>

<p>Electrodiagnostic Findings in 441 Patients with Ulnar Neuropathy - a Retrospective Study</p>

Bodies for Anatomy Education in Medical Schools: An Overview of the Sources of Cadavers Worldwide

Use of collision tests to identify physiological differences between the median and ulnar nerves

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