Which clinical condition is commonly evaluated using the ulnar nerve?

The ulnar nerve is commonly evaluated in the context of cubital tunnel syndrome because this condition specifically involves the ulnar nerve becoming compressed at the elbow, known as the cubital tunnel. This anatomical structure is a pathway for the ulnar nerve as it passes near the medial epicondyle of the humerus. When the ulnar nerve is compressed or irritated in this area, it can lead to symptoms such as numbness, tingling, and weakness in the hand, particularly affecting the little finger and half of the ring finger, as well as intrinsic muscles of the hand.

In contrast, radial neuropathy primarily involves the radial nerve, not the ulnar. Median nerve compression is associated with conditions like carpal tunnel syndrome, affecting the median nerve rather than the ulnar. Tarsal tunnel syndrome involves the posterior tibial nerve, which is quite distinct from the ulnar nerve and pertains to the foot. These distinctions clarify why cubital tunnel syndrome is the condition most directly related to the evaluation of the ulnar nerve.