title: Early magnetic resonance imaging control after temporomandibular joint arthrocentesis.
abstract: Temporomandibular joint (TMJ) lysis and lavage arthrocentesis with viscosupplementation are an effective treatment for acute disc displacement (DD) without reduction. Clinical success seems to be related to multiple factors despite the lack of understanding of its mechanisms. The authors present a case report of 17-year-old women with acute open mouth limitation (12 mm), right TMJ pain-8/10 visual analog scale, right deviation when opening her mouth. The clinical and magnetic resonance imaging (MRI) diagnosis was acute DD without reduction of right TMJ. Right TMJ arthrocentesis was purposed to the patient with lysis, lavage, and viscosupplementation of the upper joint space. After 5 days, a new MRI was performed to confirm upper joint space distension and disc position. Clinical improvement was obtained 5 days and 1 month after arthrocentesis. Upper joint space increased 6 mm and the disc remained displaced. We report the first early TMJ MRI image postoperative, with measurable upper joint space.
authors.affiliation: Department of Stomatology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal.
authors.forename: David Faustino
authors.initials: DF
authors.lastname: Ângelo
authors.affiliation: Department of Neuroradiology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal.
authors.forename: Rita
authors.initials: R
authors.lastname: Sousa
authors.affiliation: Department of Maxilofacial, Coimbra Hospital and University Centre, Coimbra, Portugal.
authors.forename: Isabel
authors.initials: I
authors.lastname: Pinto
authors.affiliation: Department of Maxilofacial, Coimbra Hospital and University Centre, Coimbra, Portugal.
authors.forename: David
authors.initials: D
authors.lastname: Sanz
authors.affiliation: Department of Oromaxilofacial, Hospital Infanta Cristina, Badajoz, Spain.
authors.forename: F Monje
authors.initials: FM
authors.lastname: Gil
authors.affiliation: Department of Stomatology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal.
authors.forename: Francisco
authors.initials: F
authors.lastname: Salvado
keywords: Temporomandibular joint arthrocentesis; temporomandibular joint magnetic resonance imaging postoperative; temporomandibular joint upper joint space distension