Ultrasonographic measurements in cubital tunnel syndrome

Yoon, Joon Shik; Kim, Byung Jo; Kim, Sei Joo; Kim, Jae Min; Sim, Kyu Hun; Hong, Suk Joo; Walker, Francis O.; Cartwright, Michael S.

doi:10.1002/mus.20864

Cited by 43 publications

(38 citation statements)

References 11 publications

(15 reference statements)

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“…As we showed in a previous study, flexion and extension of the elbow does not alter measurements of ulnar nerve cross-sectional area at either the inlet or outlet of the cubital tunnel. 12 In conclusion, the ratio of the site of maximal swelling of the ulnar nerve around the elbow, compared with either a distal or proximal site along the nerve, differentiates those with UNE from controls. Although this technique does not appear to be more accurate than simply measuring the site of maximal swelling, a ratio of Ͼ1.5 may be informative for those with underlying polyneuropathy or obesity.…”

Section: Discussionmentioning

confidence: 94%

Ultrasonographic swelling ratio in the diagnosis of ulnar neuropathy at the elbow

2008

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High-resolution ultrasound can demonstrate focal nerve enlargement in entrapment neuropathies. We hypothesized that a ratio between the nerve cross-sectional area at the site of maximal enlargement and at an unaffected site may improve diagnostic accuracy in ulnar neuropathy at the elbow (UNE), when compared to a single measurement at the site of maximal enlargement. Ultrasound was used to measure the cross-sectional area of the ulnar nerve at three sites in 30 normal, healthy controls and 26 individuals with UNE. In individuals with UNE, the ratio was 2.9:1 when the site of maximal swelling was compared with a distal ulnar nerve site and 2.8:1 when compared with a proximal site. This represented a significant increase compared with the ratio of 1.1:1 for both comparisons in controls (P < 0.0001). This type of ratio may be particularly useful for assessing entrapment in those with polyneuropathy or obesity, both of which can cause diffuse nerve enlargement.

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Section: Discussionmentioning

confidence: 94%

Ultrasonographic swelling ratio in the diagnosis of ulnar neuropathy at the elbow

2008

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“…Many researchers have demonstrated ulnar nerve enlargement at the elbow and so suggested that ultrasonography is a beneficial tool for assessing ulnar neuropathy (Beekman et al, 2004;Norbury et al, 2011;Yoon et al, 2007;.…”

Section: Discussionmentioning

confidence: 98%

“…Most of the previous studies in this field have focused only on the symptomatic ulnar nerves (Bayrak et al, 2010;Beekman et al, 2004;Yoon et al, 2007;.…”

Section: Discussionmentioning

confidence: 99%

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Ultrasound diagnosis of ulnar neuropathy: Comparison of symptomatic and asymptomatic nerve thickness

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Ünlü

Akyuz

et al. 2013

J Hand Surg Eur Vol

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There is still no consensus on a normal value for the cross-sectional area of the ulnar nerve at the elbow. Such data would be valuable for the ultrasound diagnosis of ulnar neuropathy. Comparison of the symptomatic and contralateral asymptomatic sides has been recommended. The aim of this study was to investigate whether or not the asymptomatic ulnar nerve could be a reference value. High-resolution ultrasonic measurements of the cross-sectional areas of the ulnar nerves at the elbow were compared with 38 contralateral asymptomatic elbows of patients with unilateral ulnar neuropathy and 38 healthy controls. There were significant differences in the cross-sectional areas at all levels between the healthy control subjects and asymptomatic side of the ulnar neuropathy patients (p < 0.05). The findings of this study suggest that there is a limitation in using the asymptomatic side for obtaining reference values in ultrasonographic studies. Each ultrasonographic laboratory should determine its own reference values.

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“…However, they do not provide information about the anatomy of the cubital tunnel. In this instance, ultrasonographic imaging plays an important role in helping to define the etiology of ulnar nerve compression [10]. Likewise, in this report, presenting an interesting cause of ulnar nerve entrapment, we emphasize the role of ultrasound in the diagnosis and treatment of peripheral nerve entrapment syndromes.…”

Section: Introductionmentioning

confidence: 86%

Hypertrophic ancenous epitrochlearis muscle as a cause of ulnar neuropathy at elbow

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Demir

Dizdar

et al. 2013

BMR

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We report herein a 35-year-old man who suffered from pain at his left elbow and numbness in his left hand. Electromyographic studies demonstrated a localized nerve conduction block in the left elbow region. Ultrasonographic evaluation revealed enlargement of the ulnar nerve at the level of the medial epicondyle as well as bilateral anconeus epitrochlearis muscles, one of which was hypertrophic, causing the ulnar neuropathy at the symptomatic site. We emphasize with this case report the complementary role of ultrasound in peripheral nerve pathologies, as it confirmed the entrapment and determined the underlying cause.

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Ultrasonographic measurements in cubital tunnel syndrome

Cited by 43 publications

References 11 publications

Ultrasonographic swelling ratio in the diagnosis of ulnar neuropathy at the elbow

Ultrasonographic swelling ratio in the diagnosis of ulnar neuropathy at the elbow

Ultrasound diagnosis of ulnar neuropathy: Comparison of symptomatic and asymptomatic nerve thickness

Hypertrophic ancenous epitrochlearis muscle as a cause of ulnar neuropathy at elbow

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