• Vasilios Raoulis, Gregory Tsoucalas, Anastasia Batsiou, and Aristeidis H Zibis.
• Department of Anatomy, Faculty of Medicine, University of Thessaly, Larissa, Greece.
• Int J Appl Basic Med Res. 2019 Jul 1; 9 (3): 182-184.

AbstractAtraumatic palsy of the anterior interosseous nerve (AIN) is rarely encountered, presenting an uncertain etiology which provokes a weakness of the flexor pollicis longus (FPL), flexor digitorum profundus (FDP), and pronator quadratus, while a lesion of one of the AIN branches is even rarer. In many cases, the diagnosis is based in motor deviations due to nerve's palsy. A palsy of the AIN can be "complete" or "incomplete." In an incomplete palsy, only the FPL or the FDP of the index finger is paretic or paralyzed. There is a scientific debate concerning the effectiveness between surgical and conservative treatment approaches. Moreover, a patient may have the opportunity to decide whether to be submitted in an interventional procedure or not. The purpose of this paper is to report a case of an AIN's branch palsy and to suggest a possible delay of the surgical exploration, since a late self-recovery may occur.

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