Transitory paresis of the lateral pterygoid muscle during a posterior superior alveolar nerve block--a case report.
The posterior superior alveolar nerve (PSAN) is a major sensory branch of the maxillary division of the trigeminal nerve. A PSAN block is a dental nerve block used for profound anesthesia of the maxillary molars. Complications arising from the PSAN block include hematoma formation, transient diplopia, blurred vision, and temporary blindness. This article presents a case of temporary paresis in the lateral pterygoid muscle following a PSAN block that utilized a 27-gauge long needle. The anatomical parameters and pathogenesis of such a complication are reviewed.
Department of General Dentistry, Creighton University Medical Center, School of Dentistry, Omaha, Nebraska, USA.
John W
JW
Shaner
Tarnjit S
TS
Saini
Nicole S
NS
Kimmes
Neil S
NS
Norton
Paul C
PC
Edwards
D000328:Adult; D000779:Anesthetics, Local / Q000009:adverse effects; D005260:Female; D006801:Humans; D008012:Lidocaine / Q000009:adverse effects; D008442:Maxillary Nerve / Q000187:drug effects*; D009407:Nerve Block / Q000009:adverse effects*; D010291:Paresis / Q000139:chemically induced*; D011626:Pterygoid Muscles / Q000187:drug effects* / Q000294:innervation / Q000503:physiopathology
D000779:Anesthetics, Local; D008012:Lidocaine