title: Cross-sectional area of the ulnar nerve after decompression at the cubital tunnel.
abstract: A total of 48 patients undergoing surgical decompression of the ulnar nerve at the cubital tunnel between February 2010 and May 2013 were retrospectively studied to determine changes in the cross-sectional area of the nerve by the technique of neurosonography. The mean follow-up was 46 months. Post-operative follow-up examination of the cross-sectional area of the ulnar nerve showed a slight reduction in the mean value from 13.8 mm(2) (pre-operative) to 12.9 mm(2) (post-operative). Of the 48 patients, 36 showed a reduction in the cross-sectional area. No correlation was detected between the clinical and sonographic outcomes. Ultrasound seems to be of limited value in the post-operative assessment of patients with entrapment neuropathy of the ulnar nerve.
  
  
  METHODS
  IV.
authors.affiliation: Department of Neurosurgery, University of Frankfurt, Frankfurt, Germany stephan.duetzmann@gmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Duetzmann
authors.affiliation: Department of Neurosurgery, University of Frankfurt, Frankfurt, Germany Department of Neurosurgery, University of Giessen, Giessen, Germany.
authors.forename: K G
authors.initials: KG
authors.lastname: Krishnan
authors.affiliation: Center for Peripheral Neurosurgery, Dossenheim-Heidelberg, Heidelberg, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Staub
authors.affiliation: Department of Neurology, University of Frankfurt, Frankfurt, Germany.
authors.forename: J-S
authors.initials: JS
authors.lastname: Kang
authors.affiliation: Department of Neurosurgery, University of Frankfurt, Frankfurt, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Seifert
authors.affiliation: Department of Neurosurgery, University of Frankfurt, Frankfurt, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Marquardt
mesh_terms: D000328:Adult; D000368:Aged; D020430:Cubital Tunnel Syndrome / Q000473:pathology* / Q000601:surgery*; D019299:Decompression, Surgical; D004724:Endoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014459:Ulnar Nerve / Q000473:pathology*; D014463:Ultrasonography
keywords: Cubital tunnel syndrome; cubital tunnel surgery; high-resolution ultrasound