Parálisis del sábado por la noche

Abstract

Background: Injuries to the radial nerve or its posterior interosseous and superficial radial sensory branches are common in clinical practice cases regarding the upper extremities. The exact prevalence of radial nerve injuries is unknown due to the lack of extensive epidemiological analysis on this topic. However, it is known to be more common in males. Case presentation: A 28-year-old male patient began his current condition with a loss of finger extension function and paresthesia in the forearm and hand after sleeping with his left arm resting on a table and his head on the proximal third of the forearm. In the emergency room, diagnosis by hand surgery and microsurgery revealed a Saturday night palsy. In contrast, after the electromyography results in which the patient presented partial active denervation in the left common extensor digitorum and supinator muscles, the clinical diagnosis indicated a lesion of the posterior interosseous nerve. After treatment with neuromodulators with no improvement in four months, a surgical procedure was conducted, particularly epineurolisis, leading to a remarkable improvement after six weeks.

Expected conclusions: Improvement in functionality of the metacarpophalangeal and thumb extension after treatment with epineurolysis