What is the most common site for ulnar nerve injury?

The most common site for ulnar nerve injury is the cubital tunnel. This is primarily due to the anatomical location and the vulnerability of the ulnar nerve as it passes through this area. The cubital tunnel is located at the elbow, where the nerve runs close to the surface and can easily be compressed or stretched, especially during activities that require repetitive elbow flexion or prolonged pressure on the elbow.

Moreover, the cubital tunnel is often affected by moments of trauma, such as falls or bumps to the elbow, which can lead to injury. Conditions that cause swelling or thickening of surrounding tissues, such as arthritis, can also contribute to ulnar nerve entrapment in this region. Given these factors, injuries at the cubital tunnel are notably more prevalent compared to other areas where the ulnar nerve may be susceptible to injury, such as the wrist region or shoulder. Thus, identifying the cubital tunnel as the most common site for ulnar nerve injury aligns with both clinical observations and anatomical considerations.