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If you need a guyon tunnel release, please Schedule an appointment with one of our orthopedic specialists as soon as possible.

What Is A Guyon Tunnel Release?

Guyon tunnel release, also known as ulnar tunnel or ulnar canal release, is a surgical procedure performed to relieve pressure on the ulnar nerve as it passes through the Guyon’s canal or tunnel in the wrist. The ulnar nerve is one of the major nerves in the arm and provides sensation and controls certain muscles in the hand.


  • Guyon tunnel release is indicated when the ulnar nerve becomes compressed or irritated as it passes through the Guyon’s canal in the wrist.
  • Ulnar tunnel syndrome, also known as Guyon’s canal syndrome, can result from various factors, including repetitive wrist movements, direct trauma, or pressure on the nerve from surrounding structures.


  • The surgery is typically performed under local or regional anesthesia, with or without sedation, depending on the patient’s condition and preferences.
  • During the procedure, the surgeon makes an incision over the Guyon’s canal to expose the ulnar nerve.
  • The transverse carpal ligament, which forms the roof of the Guyon’s canal, is carefully dissected and released to create more space for the nerve.
  • Any compressive structures or scar tissue that might be pressing on the nerve are also removed.
  • After the release, the wound is closed with stitches, and a dressing is applied to protect the surgical site during the initial healing phase.


  • The recovery time after Guyon tunnel release varies depending on the extent of nerve compression and the patient’s overall health.
  • Physical therapy or hand rehabilitation may be recommended to improve wrist strength and flexibility and promote nerve gliding.
  • Full recovery may take several weeks to months, and the patient’s hand function should gradually improve during this time.


  • The success of Guyon tunnel release depends on various factors, including the severity of ulnar nerve compression and the patient’s compliance with postoperative care and rehabilitation.
  • In many cases, Guyon tunnel release provides significant relief from ulnar nerve symptoms and improves hand function.

Guyon tunnel release is generally considered a safe and effective treatment for ulnar tunnel syndrome when conservative treatments have not been successful. However, as with any surgical procedure, there are risks involved, and patients should thoroughly discuss the benefits, risks, and potential complications with their surgeon before proceeding. The procedure should be performed by a qualified hand surgeon experienced in treating nerve compression conditions to achieve the best possible outcomes.


If you would like to speak to an Orthopedic Specialist, give us a call at 817-697-4038, or contact us over the web. Tele-medicine appointments are also available.