MS-3625

A 60-year-old carpenter comes to your clinic complaining of back pain. He reports that this started a few weeks ago after lifting heavy wood. He experiences a sharp pain that travels from his lower back down the lateral aspect of his left thigh. Despite resting his leg, the pain persists. You suspect that he may have a herniated disc that is compressing his sciatic nerve and want to perform an examination to confirm the presence of sciatic nerve lesion features.

What is the most probable feature that you will discover during the examination?