title: Sonographically guided carpal tunnel injections: the ulnar approach.
abstract: OBJECTIVE
  The purpose of this report is to describe a new sonographically guided technique for carpal tunnel injections using an ulnar approach.
  
  
  METHODS
  Previously published sonographically guided techniques for carpal tunnel injections were reviewed. Described approaches were noted to be technically challenging because of the need to perform long-axis imaging of the carpal tunnel, short-axis (out-of-plane) imaging of the needle, or both.
  
  
  RESULTS
  We developed and herein describe the ulnar approach for sonographically guided carpal tunnel injections. Advantages of this approach include transverse imaging of the carpal tunnel, long-axis (in-plane) imaging of the needle, and versatility in targeting structures within the carpal tunnel.
  
  
  CONCLUSIONS
  Clinicians should consider the ulnar-sided approach when performing sonographically guided carpal tunnel injections.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Mayo Clinic College of Medicine, Mayo Clinic Sports Medicine Center, Rochester, MN 55905 USA. smith.jay@mayo.edu
authors.forename: Jay
authors.initials: J
authors.lastname: Smith
authors.forename: Steve J
authors.initials: SJ
authors.lastname: Wisniewski
authors.forename: Jonathan T
authors.initials: JT
authors.lastname: Finnoff
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Payne
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage*; D002349:Carpal Tunnel Syndrome / Q000000981:diagnostic imaging* / Q000188:drug therapy*; D006801:Humans; D007267:Injections / Q000379:methods; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional / Q000379:methods*
chemical_list: D000305:Adrenal Cortex Hormones