Hydro-dissection of Entrapped Nerves

Hydro-Dissection Of Entrapped Nerves Treatment

Entrapment Neuropathy

Entrapment neuropathy is a condition in which a nerve becomes compressed, or entrapped, between two other structures in the body. Usually, the nerve is compressed between a ligament and a bone. Repetitive motion can cause the ligament and bone to press or rub against the nerve. Over time, this damages the myelin sheath, which is a layer of tissue that covers the outside of the nerve. The myelin sheath helps the nerve transmit electrical signals, so when it is damaged, the nerve can’t function as well. The nerve’s reduced ability to transmit signals causes symptoms of numbness, tingling, burning, or weakness in the fingers or other extremities.
Although usually not serious, entrapment neuropathy can be painful and can seriously affect function if not treated.

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Types of Entrapment Neuropathy

1. Carpal Tunnel Syndrome

Carpal tunnel syndrome is the most common type of entrapment neuropathy. It involves compression of the median nerve, which runs through the arm and controls movement in the thumb and first three fingers (all but the pinky). The nerve is compressed inside a passage called the carpal tunnel, which runs between the carpal bones (the bones in the back of your hand) and the transverse carpal ligament (which connects those bones). In carpal tunnel syndrome, a tendon or muscle inside the carpal tunnel becomes inflamed by repetitive use. Because the ligament and bones cannot move or expand, the inflammation puts pressure on the median nerve.

2. Cubital Tunnel Syndrome

Cubital tunnel syndrome occurs when the ulnar nerve is compressed in the cubital tunnel, which is under a bone in the elbow. The ulnar nerve controls feeling in the pinky finger and part of the ring finger. In the elbow, the ulnar nerve runs close to the skin surface, so bumping the elbow can cause tingling in those fingers (this is often referred to as the “funny bone”). The ulnar nerve can be compressed when the elbow is bent, so repetitive bending of the elbow, or frequent leaning on the elbows, can cause inflammation and entrapment of this nerve.

3. Peroneal Nerve Entrapment

The peroneal nerve in the knee, which branches off of the sciatic nerve, controls movement and feeling in the front of the lower legs and the top of the feet. Compression of this nerve can cause foot drop, which is an inability to raise the foot up at the ankle.

Other less common types of entrapment neuropathy include suprascapular nerve entrapment, which affects the nerve that controls the shoulder; meralgia paresthetica, which involves the nerve that supplies the skin over the outer and the upper leg; and radial nerve entrapment, which affects the back of the forearm and hand.

Treatment of Entrapment Neuropathy

The nerves in the arms and legs can recover from damage over time, so most of the time, people with entrapment neuropathy can experience a full recovery. The first line of treatment is to stop the mechanical injury to prevent further damage. This could mean using a brace or other tools to prevent the movement causing the damage. It could also mean changing the way one does activities to avoid damaging movement in the future. For example, using an ergonomic keyboard and changing the way a desk is set up can improve carpal tunnel syndrome that is caused by repetitive typing. If these changes aren’t effective, hydro dissection of the nerves helps in relieving the pain.

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