The compression neuropathy is referred to an Anterior Interosseous Syndrome.

Injury to the anterior interosseous branch in the forearm causes the anterior interosseous syndrome.

The clinical and electrophysiological features of pronator teres syndrome are quite different from patients with carpal tunnel syndrome or pure anterior interosseous syndrome.

As opposed to carpal tunnel syndrome, the AIN has no sensory fibers and therefore no numbness associated with the Anterior Interosseous Syndrome.

It is rare compared to compression at the wrist (carpal tunnel syndrome) or isolated injury of the anterior interosseous branch of the median nerve (anterior interosseous syndrome).

Anterior interosseous syndrome or Kiloh-Nevin syndrome I is a medical condition in which damage to the anterior interosseous nerve (AIN), a motor branch of the median nerve, causes pain in the forearm and a characteristic weakness of the pincer movement of the thumb and index finger.

The role or MRI and ultrasound imaging in the diagnosis of Kiloh-Nevin syndrome is unclear.

Anterior interosseous syndrome or Kiloh-Nevin syndrome I is a medical condition in which damage to the anterior interosseous nerve (AIN), a motor branch of the median nerve, causes pain in the forearm and a characteristic weakness of the pincer movement of the thumb and index finger.