RESUMO
CASE: Trigger finger (TF), or stenosing synovitis, is a common condition that can usually be diagnosed by physical examination. We recently operated on a patient with TF who did not respond to conservative treatment. At surgery, we found an anomalous insertion of the fourth lumbrical muscle to the A1 pulley. This insertion was observed to cause mechanical narrowing of the pulley due to a pulling effect by the muscle, which was relieved by resection. CONCLUSION: Although rare, the operating surgeon should be aware that local anatomical anomalies, such as insertion of a lumbrical into the A1 pulley, can be a cause of trigger finger.
Assuntos
Dedo em Gatilho , Humanos , Dedo em Gatilho/diagnóstico por imagem , Dedo em Gatilho/etiologia , Dedo em Gatilho/cirurgia , Músculo Esquelético , Dedos/cirurgia , Mãos , Tratamento ConservadorRESUMO
INTRODUCTION: Lipoma of the nerve is an uncommon tumor, and usually has the highest incidence in the upper limb, especially in the median nerve. When the lesion is large it can cause peripheral neuropathy such as carpal tunnel syndrome. Therefore, a physical examination is paramount for correct surgery and patient preparation. In this article we present a case that was mainly diagnosed by a complete physical examination, which led to the selection of appropriate surgery for the patient.