Which technique is most appropriate for assessing cervical instability following a traumatic injury?

• A. Cervical Stabilization Test
• B. Sharp-Purser Test
• C. Vertebral Artery Test
• D. Flexion-Extension X-rays

Answer: (B)

The Sharp-Purser Test is particularly effective for assessing cervical instability following a traumatic injury because it specifically evaluates the integrity of the atlantoaxial joint and screens for upper cervical spine instability. This test helps to detect potential instability associated with trauma, as it involves applying a posterior force to the forehead while stabilizing the C2 vertebra; a positive test may indicate excessive movement or translation, which is a sign of instability.

In the context of traumatic injuries, maintaining cervical stability is critical for preventing additional spinal cord injury. The Sharp-Purser Test is straightforward and can be performed safely in a clinical setting, making it an appropriate choice for initial assessment after a trauma.

While other techniques like the Cervical Stabilization Test and the Vertebral Artery Test have their uses in evaluating cervical conditions, they are not specifically aimed at detecting instability due to trauma. Flexion-extension X-rays, while diagnostic, typically represent a later stage in management and involve imaging techniques rather than physical examination. Therefore, the Sharp-Purser Test is the most fitting choice for immediate evaluation of cervical instability following an injury.