• S Heikal, P Riou, and L Jones.
• Royal Devon and Exeter NHS Foundation Trust, UK. sheikal@nhs.net.
• Ann R Coll Surg Engl. 2014 Apr 1;96(3):234-7.

IntroductionFractured neck of femur (NOF) is a cause of significant morbidity and mortality. Approximately 4% of patients with an initial normal hip x-ray in the emergency department (ED) will in fact have an occult fracture. In cases where there is ongoing clinical suspicion of NOF fracture despite a normal hip x-ray, alternative imaging should be used. Although available evidence supports the use of magnetic resonance imaging (MRI) for this, it is often not readily accessible from the ED. In our department, it is common practice to request computed tomography (CT).MethodsA historical review was undertaken of all patients who presented between October 2007 and January 2011 who had CT requested by ED staff. Patients included in the study were those who presented following low impact trauma in whom fractured NOF was suspected despite a normal x-ray.ResultsOf the 65 included patients, fractures (pelvic and hip) were identified in 38 patients on CT. Fractured NOFs were found in 13 patients. Acetabular fractures were found in nine patients, five of whom required further orthopaedic management. One patient went on to have MRI to confirm the diagnosis of an impacted NOF fracture, suspected both on x-ray and CT. Further review was undertaken of the medical notes of discharged patients to identify any who reattended or required further imaging. No such cases were found.ConclusionsThis review has shown the use of CT to be a practical approach to improving the care of patients with occult hip fractures.

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