What is Carpal Tunnel Syndrome


In the center of the wrist, there is a space called the carpal tunnel where a major nerve (the median nerve) and nine tendons pass from the forearm into the hand. A very strong ligament forms a roof over the tunnel. When there is swelling in the carpal tunnel, pressure is put on the median nerve, which supplies most of the fingers and thumb with feeling and movement.

When pressure becomes great enough to compress the nerve, Carpal Tunnel Syndrome may occur.


  • Numbness

  • Tingling

  • Burning

  • Pain in fingers, hand and wrist that may extend up to shoulders

These symptoms may occur by itself or in combination on either or both hands. Numbness or tingling is felt most often in the thumb, index, middle and ring fingers. The symptoms frequently occur at night. They may also be noticeable while performing daily activities like reading, driving, and doing household chores. A weakening of the grip may become apparent, along with a tendency to drop objects.


  • Swelling of the lining of a tendon

  • Repetitive use of hands involving activities like grasping, squeezing or clipping

  • Fluid retention during pregnancy

  • Rheumatoid arthritis

  • Hypothyroidism a-4d diabetes (only causes symptoms of CTS)

  • Arthritis and bone dislocations or fractures (less common causes)


  • Cut down on activities that cause continuous exertion or repetitive use of your hands, or keep the wrist in a neutral position may help reduce the swelling within the carpal tunnel and relieve pressure from the nerve area.

  • Wearing wrist splints at night may relieve the symptoms and accommodate a better night's rest.

  • Anti-inflammatory medication taken orally or injected into the carpal tunnel may help reduce the swelling and relieve symptoms.



When symptoms are severe or do not improve with non-surgical treatments, surgery may be elected to enlarge the carpal tunnel by cutting (releasing) the ligament to allow more room for the median nerve.

There are two types of surgical treatments, which are:

  • Traditional Open Surgery

  • Endoscopic Surgery



In this procedure, an incision made through layers of skin, fat, fascia, and muscle, to identify and divide the transverse carpal ligament. During traditional open surgery, the ligament is exposed through the palm and then cut by the surgeon.

During small-incision ‘keyhole’ endoscopic surgery, the ligament is released without having to cut through the skin and muscles of the palm.


Endoscopic surgery is now an alternative to traditional open carpal tunnel surgery. This procedure is performed using a device called the Carpal Tunnel Release System. It allows the release of the carpal ligament through a much smaller incision at the base of the wrist.

A small endoscope and camera projects an “inside view” of the carpal tunnel onto a video monitor. The surgeon watches the screen and precisely cuts the ligament with a specially designed blade, simply by pulling a trigger.

Both open and endoscopic surgery have the same goal - Dividing the transverse carpal ligament to enlarge the carpal tunnel, and relieve pressure on the median nerve. The endoscopic approach improves post-surgery comfort, and shortens recovery times, allowing faster return to normal activity.

Dr. Jonathan Lee has been performing Carpal Tunnel Release using the ‘keyhole’ Endoscopic technique since 2002, shortening recovery times and improving post-operative comfort.

Dr. Jonathan Lee has been performing Carpal Tunnel Release using the ‘keyhole’ Endoscopic technique since 2002, shortening recovery times and improving post-operative comfort.


Endoscopic surgery shortened the recovery period as compared to open surgery. While individual results vary, most patients return to normal daily activities within days after endoscopic surgery and return to work earlier than those who undergo the open surgery. Recovery of hand strength by open surgery can take weeks or even months while the palm heals.

Endoscopic surgery results in less pain and scarring. Only a very small scar which conceal in a wrist crease, remain after healing.

An illustration of endoscopic treatment for Carpal Tunnel Syndrome

An illustration of endoscopic treatment for Carpal Tunnel Syndrome


If carpal tunnel surgery is needed, your doctor will help you make an informed decision by explaining your surgical options and the risks associated with both the open and endoscopic procedures. If you choose the endoscopic surgery, your doctor will also explain to you that there is a very small chance the surgery would have to be converted to the open surgery.

Carpal Tunnel release has been proven to be a highly successful surgery with excellent results for most patients. Your doctor will be happy to answer any questions you may have about CTS and its treatment.


With either open or endoscopic surgery, the incision will be sutured. Your wrist and hand will be dressed, and gentle hand exercises will begin soon after surgery.

The time it takes before you can resume normal activities and return to work will varies with each individual. This is a decision that should be made in consultation with your doctor.