Hypothenar hammer syndrome: A recurrent case report after surgery

Journal De Médecine Vasculaire
L AthlaniG Dautel

Abstract

Hypothenar hammer syndrome is a rare entity secondary to ulnar artery damage in the wrist, affecting mainly those exposed to repeated hand-palm trauma. Surgery is discussed in case of severe symptoms, resistant to medical treatment, and/or when anatomical lesions with emboligenic potential are demonstrated in the radiological exams. In this case, resection of the pathological zone with revascularization by autologous vein graft is the best option. We report the case of a 60-year-old patient who had a recurrence of symptoms more than 10 years after the completion of a surgical treatment. There was an aneurysmal thrombosed vein graft with extensive thrombus extending from the ulnar artery upstream of the Guyon's canal to the superficial palmar arch. The digital revascularization was provided by the radial superficial palmar arch and the presence of a collateral vascular supply. This late complication was responsible for compression of the ulnar nerve in Guyon's canal. A new surgery was performed consisting of the resection of the thrombosed zone, including the vein graft, without vascular reconstruction given the good vascularization of all the fingers, and release of the ulnar nerve to the wrist. The operative follow-up was unev...Continue Reading

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