Role of high resolution ultrasound in ulnar nerve neuropathy

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3 Citations (Scopus)

Abstract

Aim: This study was conducted to measure the cross sectional area (CSA) of the ulnar nerve (UN) in the cubital tunnel and to evaluate the role of high-resolution ultrasonography in the diagnosis of ulnar nerve neuropathy (UNN). Materials and Methods This was a cross sectional study with 64 arms from 32 patients (34 neuropathic, 30 nonneuropathic). Diagnosis was confirmed by nerve conduction study and electromyography. The ulnar nerves were evaluated with 15MHz small footprint linear array transducer. The ulnar nerve CSA was measured at three levels with arm extended: at medial epicondyle (ME), 5cm proximal and 5cm distal to ME. Results from the neuropathic and nonneuropathic arms were compared. Independent T-tests and Pearson correlation tests were used. P value of less than 0.05 was considered significant. Results: Mean CSA values for the UN at levels 5cm proximal to ME, ME and 5cm distal to ME were 0.055, 0.109, 0.045 cm<sup>2</sup> respectively in the neuropathic group and 0.049, 0.075, 0.042 cm<sup>2</sup> respectively in the non-neuropathic group. The CSA of the UN at the ME level was significantly larger in the neuropathic group, with p value of 0.005. However, there was no statistical difference between the groups at 5cm proximal and distal to the ME, with p values of 0.10 and 0.35 respectively. Conclusion: There is significant difference in CSA values of the UN at ME between the neuropathic and non-neuropathic groups with mean CSA value above the predetermined 0.10cm<sup>2</sup> cut-off point. High-resolution ultrasonography is therefore useful to diagnose and follow up cases of elbow UNN.

Original languageEnglish
Pages (from-to)158-161
Number of pages4
JournalMedical Journal of Malaysia
Volume70
Issue number3
Publication statusPublished - 4 Aug 2015

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Ulnar Neuropathies
Ulnar Nerve
Arm
Ultrasonography
Neural Conduction
Electromyography
Elbow
Transducers
Cross-Sectional Studies

Keywords

  • Cubital tunnel
  • Elbow
  • High resolution ultrasonography
  • Neuropathy
  • Ulnar nerve

ASJC Scopus subject areas

  • Medicine(all)

Cite this

@article{5f1207e94710442a8f42c144f914ac57,
title = "Role of high resolution ultrasound in ulnar nerve neuropathy",
abstract = "Aim: This study was conducted to measure the cross sectional area (CSA) of the ulnar nerve (UN) in the cubital tunnel and to evaluate the role of high-resolution ultrasonography in the diagnosis of ulnar nerve neuropathy (UNN). Materials and Methods This was a cross sectional study with 64 arms from 32 patients (34 neuropathic, 30 nonneuropathic). Diagnosis was confirmed by nerve conduction study and electromyography. The ulnar nerves were evaluated with 15MHz small footprint linear array transducer. The ulnar nerve CSA was measured at three levels with arm extended: at medial epicondyle (ME), 5cm proximal and 5cm distal to ME. Results from the neuropathic and nonneuropathic arms were compared. Independent T-tests and Pearson correlation tests were used. P value of less than 0.05 was considered significant. Results: Mean CSA values for the UN at levels 5cm proximal to ME, ME and 5cm distal to ME were 0.055, 0.109, 0.045 cm2 respectively in the neuropathic group and 0.049, 0.075, 0.042 cm2 respectively in the non-neuropathic group. The CSA of the UN at the ME level was significantly larger in the neuropathic group, with p value of 0.005. However, there was no statistical difference between the groups at 5cm proximal and distal to the ME, with p values of 0.10 and 0.35 respectively. Conclusion: There is significant difference in CSA values of the UN at ME between the neuropathic and non-neuropathic groups with mean CSA value above the predetermined 0.10cm2 cut-off point. High-resolution ultrasonography is therefore useful to diagnose and follow up cases of elbow UNN.",
keywords = "Cubital tunnel, Elbow, High resolution ultrasonography, Neuropathy, Ulnar nerve",
author = "Radhika Sridharan and Ling, {Lee Yee} and Fin, {Low Soo} and {Mohd. Fadzilah}, Fazalina and {Idrus Alhabshi}, {Sharifah Majedah} and Suraya Aziz and Rajesh Singh and Jamari Sapuan and Tan, {Hui Jan} and {Mohamed Ibrahim}, Norlinah",
year = "2015",
month = "8",
day = "4",
language = "English",
volume = "70",
pages = "158--161",
journal = "Medical Journal of Malaysia",
issn = "0300-5283",
publisher = "Malaysian Medical Association",
number = "3",

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TY - JOUR

T1 - Role of high resolution ultrasound in ulnar nerve neuropathy

AU - Sridharan, Radhika

AU - Ling, Lee Yee

AU - Fin, Low Soo

AU - Mohd. Fadzilah, Fazalina

AU - Idrus Alhabshi, Sharifah Majedah

AU - Aziz, Suraya

AU - Singh, Rajesh

AU - Sapuan, Jamari

AU - Tan, Hui Jan

AU - Mohamed Ibrahim, Norlinah

PY - 2015/8/4

Y1 - 2015/8/4

N2 - Aim: This study was conducted to measure the cross sectional area (CSA) of the ulnar nerve (UN) in the cubital tunnel and to evaluate the role of high-resolution ultrasonography in the diagnosis of ulnar nerve neuropathy (UNN). Materials and Methods This was a cross sectional study with 64 arms from 32 patients (34 neuropathic, 30 nonneuropathic). Diagnosis was confirmed by nerve conduction study and electromyography. The ulnar nerves were evaluated with 15MHz small footprint linear array transducer. The ulnar nerve CSA was measured at three levels with arm extended: at medial epicondyle (ME), 5cm proximal and 5cm distal to ME. Results from the neuropathic and nonneuropathic arms were compared. Independent T-tests and Pearson correlation tests were used. P value of less than 0.05 was considered significant. Results: Mean CSA values for the UN at levels 5cm proximal to ME, ME and 5cm distal to ME were 0.055, 0.109, 0.045 cm2 respectively in the neuropathic group and 0.049, 0.075, 0.042 cm2 respectively in the non-neuropathic group. The CSA of the UN at the ME level was significantly larger in the neuropathic group, with p value of 0.005. However, there was no statistical difference between the groups at 5cm proximal and distal to the ME, with p values of 0.10 and 0.35 respectively. Conclusion: There is significant difference in CSA values of the UN at ME between the neuropathic and non-neuropathic groups with mean CSA value above the predetermined 0.10cm2 cut-off point. High-resolution ultrasonography is therefore useful to diagnose and follow up cases of elbow UNN.

AB - Aim: This study was conducted to measure the cross sectional area (CSA) of the ulnar nerve (UN) in the cubital tunnel and to evaluate the role of high-resolution ultrasonography in the diagnosis of ulnar nerve neuropathy (UNN). Materials and Methods This was a cross sectional study with 64 arms from 32 patients (34 neuropathic, 30 nonneuropathic). Diagnosis was confirmed by nerve conduction study and electromyography. The ulnar nerves were evaluated with 15MHz small footprint linear array transducer. The ulnar nerve CSA was measured at three levels with arm extended: at medial epicondyle (ME), 5cm proximal and 5cm distal to ME. Results from the neuropathic and nonneuropathic arms were compared. Independent T-tests and Pearson correlation tests were used. P value of less than 0.05 was considered significant. Results: Mean CSA values for the UN at levels 5cm proximal to ME, ME and 5cm distal to ME were 0.055, 0.109, 0.045 cm2 respectively in the neuropathic group and 0.049, 0.075, 0.042 cm2 respectively in the non-neuropathic group. The CSA of the UN at the ME level was significantly larger in the neuropathic group, with p value of 0.005. However, there was no statistical difference between the groups at 5cm proximal and distal to the ME, with p values of 0.10 and 0.35 respectively. Conclusion: There is significant difference in CSA values of the UN at ME between the neuropathic and non-neuropathic groups with mean CSA value above the predetermined 0.10cm2 cut-off point. High-resolution ultrasonography is therefore useful to diagnose and follow up cases of elbow UNN.

KW - Cubital tunnel

KW - Elbow

KW - High resolution ultrasonography

KW - Neuropathy

KW - Ulnar nerve

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M3 - Article

VL - 70

SP - 158

EP - 161

JO - Medical Journal of Malaysia

JF - Medical Journal of Malaysia

SN - 0300-5283

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