In an elderly patient with suspected occult hip fracture and negative initial X-rays, what is the next best step?

In an elderly patient with suspected occult hip fracture and negative initial X-rays, what is the next best step?

• A. Obtain an MRI to evaluate for occult fracture
• B. Repeat X-ray after 1 week
• C. CT scan of the hip
• D. Ultrasound of the hip

Answer: (A)

In this scenario, the goal is to identify an occult femoral neck fracture that plain X-rays often miss in elderly patients. Magnetic resonance imaging is the best next step because it can detect bone marrow edema and subtle fractures very early, with high sensitivity and specificity. This allows prompt, appropriate treatment and helps prevent displacement, nonunion, or avascular necrosis. If MRI isn’t available, CT can reveal fracture lines but is less reliable for detecting occult injuries early and does not show marrow edema as well. Repeating X-rays after a week delays diagnosis and increases risk, and ultrasound does not effectively evaluate hip fractures.

In this scenario, the goal is to identify an occult femoral neck fracture that plain X-rays often miss in elderly patients. Magnetic resonance imaging is the best next step because it can detect bone marrow edema and subtle fractures very early, with high sensitivity and specificity. This allows prompt, appropriate treatment and helps prevent displacement, nonunion, or avascular necrosis. If MRI isn’t available, CT can reveal fracture lines but is less reliable for detecting occult injuries early and does not show marrow edema as well. Repeating X-rays after a week delays diagnosis and increases risk, and ultrasound does not effectively evaluate hip fractures.