The cubital tunnel in ulnar entrapment neuropathy

J. N. St. John, Julio C Palmaz

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Anteroposterior radiographs of the fully flexed and slightly externally rotated elbow were obtained in 122 cases of cubital tunnel syndrome (CUTS) and in 33 normal elbows. Medial trochlear lip osteophytes were not found in the studies of normal elbows but were noted in 20% of ulnar nerve entrapment cases. Medial incongruity between the trochlea and the olecranon ≥ 5 mm was found in 29% of CUTS cases and in 6% of normal elbows. The presence of posttraumatic elbow-joint deformities seen on radiographs correlated significantly with the degree of clinical involvement. Depth and area measurements of ulnar nerve compression, performed using a line-art representation of the radiographs, showed a significant (P < .0001) correlation between decrease in the area of the cubital tunnel and ulnar innervated muscle atrophy. These findings confirm the importance in this syndrome of both osteoarthritis and incongruity of the medial structures of the elbow joint.

Original languageEnglish (US)
Pages (from-to)119-123
Number of pages5
JournalRadiology
Volume158
Issue number1
StatePublished - 1986
Externally publishedYes

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Ulnar Neuropathies
Nerve Compression Syndromes
Elbow
Cubital Tunnel Syndrome
Ulnar Nerve Compression Syndromes
Elbow Joint
Olecranon Process
Osteophyte
Muscular Atrophy
Art
Lip
Osteoarthritis

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

St. John, J. N., & Palmaz, J. C. (1986). The cubital tunnel in ulnar entrapment neuropathy. Radiology, 158(1), 119-123.

The cubital tunnel in ulnar entrapment neuropathy. / St. John, J. N.; Palmaz, Julio C.

In: Radiology, Vol. 158, No. 1, 1986, p. 119-123.

Research output: Contribution to journalArticle

St. John, JN & Palmaz, JC 1986, 'The cubital tunnel in ulnar entrapment neuropathy', Radiology, vol. 158, no. 1, pp. 119-123.
St. John JN, Palmaz JC. The cubital tunnel in ulnar entrapment neuropathy. Radiology. 1986;158(1):119-123.
St. John, J. N. ; Palmaz, Julio C. / The cubital tunnel in ulnar entrapment neuropathy. In: Radiology. 1986 ; Vol. 158, No. 1. pp. 119-123.
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