Associations between ulnar nerve strain and accompanying conditions in patients with cubital tunnel syndrome

Kensuke Ochi, Yukio Horiuchi, Toshiyasu Nakamura, Kazuki Satou, Kozo Morita, Koichi Horiuchi

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2 Citations (Scopus)

Abstract

Pathophysiology of cubital tunnel syndrome (CubTS) is still controversial. Ulnar nerve strain at the elbow was measured intraoperatively in 13 patients with CubTS before simple decompression. The patients were divided into three groups according to their accompanying conditions: compression/adhesion, idiopathic, and relaxation groups. The mean ulnar nerve strain was 43.5 ± 30.0%, 25.5 ± 14.8%, and 9.0 ± 5.0% in the compression/adhesion, idiopathic, and relaxation groups respectively. The mean ulnar nerve strains in patients with McGowan's classification grades I, II, and III were 18.0 ± 4.2%, 27.1 ± 22.7%, and 33.7 ± 24.7%, respectively. The Jonckheere-Terpstra test showed that there were significant reductions in the ulnar nerve strain among the first three groups, but not in the three groups according to McGowan's classification. Our results suggest that the pathophysiology, not disease severity, of CubTS may be explained at least in part by the presence of ulnar nerve strain.

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Cubital Tunnel Syndrome
Ulnar Nerve
Elbow
Decompression

Keywords

  • Cubital Tunnel Syndrome
  • Etiology
  • Nerve Strain
  • Pathophysiology
  • Ulnar Nerve Palsy

ASJC Scopus subject areas

  • Medicine(all)

Cite this

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title = "Associations between ulnar nerve strain and accompanying conditions in patients with cubital tunnel syndrome",
abstract = "Pathophysiology of cubital tunnel syndrome (CubTS) is still controversial. Ulnar nerve strain at the elbow was measured intraoperatively in 13 patients with CubTS before simple decompression. The patients were divided into three groups according to their accompanying conditions: compression/adhesion, idiopathic, and relaxation groups. The mean ulnar nerve strain was 43.5 ± 30.0{\%}, 25.5 ± 14.8{\%}, and 9.0 ± 5.0{\%} in the compression/adhesion, idiopathic, and relaxation groups respectively. The mean ulnar nerve strains in patients with McGowan's classification grades I, II, and III were 18.0 ± 4.2{\%}, 27.1 ± 22.7{\%}, and 33.7 ± 24.7{\%}, respectively. The Jonckheere-Terpstra test showed that there were significant reductions in the ulnar nerve strain among the first three groups, but not in the three groups according to McGowan's classification. Our results suggest that the pathophysiology, not disease severity, of CubTS may be explained at least in part by the presence of ulnar nerve strain.",
keywords = "Cubital Tunnel Syndrome, Etiology, Nerve Strain, Pathophysiology, Ulnar Nerve Palsy",
author = "Kensuke Ochi and Yukio Horiuchi and Toshiyasu Nakamura and Kazuki Satou and Kozo Morita and Koichi Horiuchi",
year = "2014",
doi = "10.1142/S0218810414500233",
language = "English",
volume = "19",
pages = "329--333",
journal = "The journal of hand surgery Asian-Pacific volume",
issn = "2424-8355",
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T1 - Associations between ulnar nerve strain and accompanying conditions in patients with cubital tunnel syndrome

AU - Ochi, Kensuke

AU - Horiuchi, Yukio

AU - Nakamura, Toshiyasu

AU - Satou, Kazuki

AU - Morita, Kozo

AU - Horiuchi, Koichi

PY - 2014

Y1 - 2014

N2 - Pathophysiology of cubital tunnel syndrome (CubTS) is still controversial. Ulnar nerve strain at the elbow was measured intraoperatively in 13 patients with CubTS before simple decompression. The patients were divided into three groups according to their accompanying conditions: compression/adhesion, idiopathic, and relaxation groups. The mean ulnar nerve strain was 43.5 ± 30.0%, 25.5 ± 14.8%, and 9.0 ± 5.0% in the compression/adhesion, idiopathic, and relaxation groups respectively. The mean ulnar nerve strains in patients with McGowan's classification grades I, II, and III were 18.0 ± 4.2%, 27.1 ± 22.7%, and 33.7 ± 24.7%, respectively. The Jonckheere-Terpstra test showed that there were significant reductions in the ulnar nerve strain among the first three groups, but not in the three groups according to McGowan's classification. Our results suggest that the pathophysiology, not disease severity, of CubTS may be explained at least in part by the presence of ulnar nerve strain.

AB - Pathophysiology of cubital tunnel syndrome (CubTS) is still controversial. Ulnar nerve strain at the elbow was measured intraoperatively in 13 patients with CubTS before simple decompression. The patients were divided into three groups according to their accompanying conditions: compression/adhesion, idiopathic, and relaxation groups. The mean ulnar nerve strain was 43.5 ± 30.0%, 25.5 ± 14.8%, and 9.0 ± 5.0% in the compression/adhesion, idiopathic, and relaxation groups respectively. The mean ulnar nerve strains in patients with McGowan's classification grades I, II, and III were 18.0 ± 4.2%, 27.1 ± 22.7%, and 33.7 ± 24.7%, respectively. The Jonckheere-Terpstra test showed that there were significant reductions in the ulnar nerve strain among the first three groups, but not in the three groups according to McGowan's classification. Our results suggest that the pathophysiology, not disease severity, of CubTS may be explained at least in part by the presence of ulnar nerve strain.

KW - Cubital Tunnel Syndrome

KW - Etiology

KW - Nerve Strain

KW - Pathophysiology

KW - Ulnar Nerve Palsy

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