title: Intermuscular pterygoid-temporal abscess following inferior alveolar nerve block anesthesia-A computer tomography based navigated surgical intervention: Case report and review.
abstract: Inferior alveolar nerve block (IANB) anesthesia is a common local anesthetic procedure. Although IANB anesthesia is known for its safety, complications can still occur. Today immediately or delayed occurring disorders following IANB anesthesia and their treatment are well-recognized. We present a case of a patient who developed a symptomatic abscess in the pterygoid region as a result of several inferior alveolar nerve injections. Clinical symptoms included diffuse pain, reduced mouth opening and jaw's hypomobility and were persistent under a first step conservative treatment. Since image-based navigated interventions have gained in importance and are used for various procedures a navigated surgical intervention was initiated as a second step therapy. Thus precise, atraumatic surgical intervention was performed by an optical tracking system in a difficult anatomical region. A symptomatic abscess was treated by a computed tomography-based navigated surgical intervention at our department. Advantages and disadvantages of this treatment strategy are evaluated.
authors.affiliation: Department of Maxillofacial Surgery, Medical University of Graz, Graz, Austria.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Wallner
authors.affiliation: Department of Maxillofacial Surgery, Medical University of Graz, Graz, Austria.
authors.forename: Knut Ernst
authors.initials: KE
authors.lastname: Reinbacher
authors.affiliation: Department of Maxillofacial Surgery, Medical University of Graz, Graz, Austria.
authors.forename: Mauro
authors.initials: M
authors.lastname: Pau
authors.affiliation: Department of Maxillofacial Surgery, Medical University of Graz, Graz, Austria.
authors.forename: Matthias
authors.initials: M
authors.lastname: Feichtinger
keywords: Abscess; complication; computed tomography-based navigated surgical intervention; inferior alveolar nerve block anesthesia