The ulnar nerve may be compressed at different points along its course into the forearm and hand. Surgical treatment appears to be decisive in most cases, although late diagnosis often leads to incomplete functional recovery.Įntrapment syndromes of the ulnar nerve are quite widespread in the population, second only to carpal tunnel syndrome. The rarity of the pathology is probably due to lack of knowledge and therefore to the difficulty in formulating a correct diagnosis. The isolated compression of the ulnar nerve motor branch is a very rare clinical condition which is often linked to several causes. Surgical technique and postoperative outcomes are discussed in this paper.
#Ulnar nerve compression series
Authors report a case series of eight patients affected by isolated compression of the ulnar nerve motor branch, due to piso-triquetrum or triquetro-hamate joint ganglia. This condition, less frequent than the classic Guyon’s syndrome, can be difficult to diagnose. However, GC nerve compression could also cause a pure hand motor dysfunction. If the nerve compression is causing muscle weakness, the doctor may recommend surgery.The entrapment of the ulnar nerve in Guyon’s canal (GC) is a well-known wrist canalicular syndrome which is usually followed by a gradual combination of both sensitive and motor symptomatology. Numbness and tingling in the hand and fingers are common symptoms of ulnar nerve compression at the elbow. Ulnar nerve compression at the elbow is sometimes called cubital tunnel syndrome. Right behind the inside part of the elbow is the most common place for ulnar nerve compression. The ulnar nerve can be constricted in several places, such as beneath the collarbone, elbow or the wrist. The ulnar nerve controls most of the tiny muscles in the hand and some of the muscles in the forearm that make a strong grip.
As the ulnar nerve enters the hand, it travels through another tunnel called Guyon's canal. The ulnar nerve is one of three main nerves in the arm and begins in the neck and then enters into the hand. The ulnar nerve travels through the cubital tunnel that runs under a bony bump called the medial epicondyle, where the nerve is close to your skin, and bumping it causes a shock-like feeling. Ulnar nerve compression at the elbow occurs when the ulnar nerve in the arm becomes compressed or irritated. Surgery should provide relief from pain, numbness or weakness, but recovery may last several months before the nerve has completely healed. The surgery may require a ligament to be cut to relieve the pressure in the wrist. Treatment for ulnar tunnel syndrome can include surgery or wearing a wrist brace. Compression at the wrist is usually associated with repetitive trauma or ganglions. Ulnar nerve compression at the wrist is a less common problem than compression at the elbow. Ulnar tunnel syndrome is less common than carpal tunnel syndrome or cubital tunnel syndrome.
The ulnar nerve enters the hand through Guyon’s canal at the wrist and not well protected and is therefore at more risk of injury. A syndrome occurs when the ulnar nerve in the wrist becomes compressed by injury or repeated strain. Ulnar nerve compression at the wrist is sometimes referred as Guyon’s Canal Syndrome. The cubital tunnel where the nerve traverses is fixed in size, so any inflammation causes compression of the nerve leading to numbness and tingling in the hand or wrist. When the ulnar nerve is irritated, it can cause pain, numbness, tingling or burning into the small finger and part of the ring finger.
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