RT Journal Article SR Electronic T1 Quadrilateral space syndrome: a case study and review of the literature JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP e9 OP e9 DO 10.1136/bjsm.2004.013367 VO 39 IS 2 A1 W T Hoskins A1 H P Pollard A1 A J McDonald YR 2005 UL http://bjsm.bmj.com/content/39/2/e9.abstract AB Quadrilateral space syndrome is an uncommon injury. The true prevalence is unknown because of a lack of literature and possible misdiagnosis. Prevalence may increase as knowledge of the syndrome increases. The case is presented of a recreational triathlete who had a spontaneous onset of quadrilateral space syndrome. The diagnosis was made by physical examination and confirmed with magnetic resonance imaging. A conservative, yet aggressive rehabilitation programme resulted in functional improvement within six weeks. Results have been maintained for eight weeks.