Role of low-field magnetic resonance imaging in the detection of floating meniscus sign as consequence of sport-related trauma

Angelo Iovane, Michele D'Arienzo, Raffaello Sutera, Antonino Sanfilippo, Giuseppe Francavilla, Fortunato Sorrentino, Vincenzo Cristian Francavilla

Risultato della ricerca: Articlepeer review

Abstract

Aim. To assess the role of magnetic resonance (MR) imaging performed with a low-field scanner in the detection of floating meniscus sign as a consequence of sports-related trauma. Methods. Retrospective review of 2436 MR knee examinations executed, in 18 months, using a low-field scanner of 0.2T, was performed by three musculoskeletal radiologists of varying experience. Diagnostic criteria to define the presence of a complete floating meniscus were as codified in the literature, lithe thickness of the fluid signal band between the meniscus and tibial plateau was comprised in the range >= 3 mm and <= 5 mm the floating meniscus was defined as partial. Patients with the sign were called to learn what treatment had been performed; in those submitted to surgery the surgical chart was evaluated. Results. Floating meniscus was detected in 8/2436 cases (0.25%), 5 complete, arthroscopically confirmed, and 3 partial; in 5/8 cases the lateral meniscus was involved. Associated lesions were observed, ligamentous in 7/8 cases and meniscal in 2/8 cases; a bone bruise of varied extension was identified in 3/8 cases. Conclusion. Floating meniscus sign could be detected at MR imaging although performed using a low-field scanner. Its presence should be carefully identified, especially in severe traumatic events, as it has some important prognostic implications.
Lingua originaleEnglish
pagine (da-a)255-264
Numero di pagine10
RivistaMEDICINA DELLO SPORT
Volume63
Stato di pubblicazionePublished - 2010

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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