RESUMEN
OBJECTIVE: Recent studies suggest that high resolution ultrasonography (HRU) is useful in evaluating ulnar neuropathy (UN) at the elbow. These studies do not include UN outside the elbow and lesions related to previous trauma. We investigate diagnostic utility of HRU in UN at any location of traumatic and non-traumatic etiology. METHODS: Patients with clinically suspected and electrophysiologically defined UN at the elbow and outside the elbow were included. Nerve conduction studies (NCS) were compared with HRU. HRU defined UN in terms of change in cross-sectional area. RESULTS: Our retrospective analysis included 46 UN. In 25 cases both NCS and HRU localised neuropathy to the elbow. In 15 where NCS was abnormal but non-localising, HRU localised the lesion in 14, 7 outside the elbow. In three of these, HRU characterised further pathology (synovial osteochondromatosis (n=2), myositis ossificans (n=1). Cross-sectional area of the ulnar nerve at the sulcus significantly correlated with distal NCS parameters. CONCLUSIONS: HRU is of greater use than NCS in the localisation of UN both at the elbow and outside the elbow and in UN related to previous trauma. SIGNIFICANCE: HRU is useful for the localisation of ulnar neuropathy.
Asunto(s)
Nervio Cubital/diagnóstico por imagen , Nervio Cubital/lesiones , Neuropatías Cubitales/diagnóstico por imagen , Ultrasonografía/métodos , Adulto , Anciano , Síndrome del Túnel Cubital/diagnóstico por imagen , Síndrome del Túnel Cubital/patología , Síndrome del Túnel Cubital/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Miositis Osificante/diagnóstico por imagen , Miositis Osificante/patología , Miositis Osificante/fisiopatología , Osteocondromatosis/diagnóstico por imagen , Osteocondromatosis/patología , Osteocondromatosis/fisiopatología , Estudios Retrospectivos , Nervio Cubital/patología , Neuropatías Cubitales/patología , Neuropatías Cubitales/fisiopatología , Heridas y Lesiones/diagnóstico por imagen , Heridas y Lesiones/patología , Heridas y Lesiones/fisiopatología , Adulto JovenRESUMEN
Localised hypertrophic mononeuropathy is the progressive enlargement of a large peripheral nerve, which can lead to profound loss of function. In this case report, we describe the postoperative occurrence of this phenomenon and possible ways to monitor for this condition.