Hypothenar hammer syndrome: Apropos of six cases and review of the literature

Samy Nitecki*, Yoram Anekstein, Tony Karram, Amir Peer, Arie Bass

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Hypothenar hammer syndrome (HHS) is a rather rare condition and is a term used to describe an aneurysmor thrombosis of the ulnar artery. It is considered an occupational or recreational injury and is usually a result of a repetitive trauma to the hypothenar region where the unique anatomy of the Guyon canal allows arterial injury. HHS is one of the less common causes of symptomatic ischemia of the upper extremity. The aim of this article is to describe our experience with six patients. Presenting signs, symptoms, differential diagnoses, and literature review of this probably underdiagnosed syndrome are described. There are two pathologic entities: the aneurysmal type and the thrombotic type. Although most authors recommend watchful observation for the thrombotic type, reconstructive surgery is the treatment of choice for the aneurysmal type.

Original languageEnglish
Pages (from-to)279-282
Number of pages4
Issue number5
StatePublished - 2008
Externally publishedYes


  • Hypothenar hammer syndrome
  • Occupational injury
  • Ulnar artery aneurysm
  • Ulnar artery thrombosis


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