Which physical sign is associated with nerve root compression in the lower extremity?

• A. Minor Sign
• B. Kemp Test
• C. Amos Sign
• D. Bechterew's Test

Answer: (B)

The Kemp Test is particularly relevant when assessing for nerve root compression in the lower extremity. This test involves specific movements of the lumbar spine and is designed to reproduce pain by placing stress on the affected nerve roots, often associated with conditions like herniated discs or spinal stenosis. When performing the Kemp Test, the clinician typically observes for signs of radicular pain, which indicates that the nerve root is under pressure, thus directly linking the test to nerve root compression.

The movements involved in the Kemp Test simultaneously assess both movement and symptom reproduction, making it a valuable tool in differentiating between musculoskeletal issues and true nerve root involvement. As a result, a positive finding during this assessment can lead to further diagnostic testing or intervention focused on the identified nerve root issue.

Other options, while useful in various contexts of lower extremity assessment, do not specifically target nerve root compression like the Kemp Test does. For example, the Minor Sign and Amos Sign are not directly linked to nerve root assessment but rather to general signs of significant pain or discomfort that might indicate other underlying problems. Bechterew's Test is often used to assess for pain related to lumbar spine conditions, but it does not specifically isolate nerve root compression. Therefore, the Kemp Test stands out as the