Ulnar Collateral Ligament (UCL) Reconstruction: Tommy John surgery using palmaris longus or hamstring autograft or allograft

Q1. What is Ulnar Collateral Ligament (UCL) reconstruction, also known as Tommy John surgery?

Ulnar Collateral Ligament (UCL) reconstruction, commonly called Tommy John surgery, is a surgical procedure to replace a torn or severely damaged ligament on the inner side of the elbow. The surgery is named after the professional baseball pitcher Tommy John, who was the first athlete to successfully undergo the procedure in 1974. A healthy tendon (graft) is taken from another part of your body or a donor and used to recreate the ligament, restoring stability, strength, and pain-free motion to the elbow joint.

Q2. What are the main functions of the ulnar collateral ligament in the elbow?

The UCL is a thick, triangular band of tissue located on the inner side (medial side) of the elbow. Its primary functions include:

• Providing stability to the elbow joint during throwing and overhead motions.
• Preventing the elbow from bending sideways or opening up under stress.
• Ensuring smooth alignment and movement of the joint during daily activities.

Q3. What causes a UCL injury, and who is most at risk?

UCL injuries are most often caused by repetitive, high-velocity overhead throwing or stress on the elbow. Those most at risk include:

• Baseball pitchers and other throwing athletes (such as quarterbacks and javelin throwers).
• Racket sport players, gymnasts, and volleyball players.
• Individuals who experience a sudden, traumatic elbow dislocation or fall onto an outstretched hand.

Q4. What symptoms indicate a torn or injured UCL?

Signs of a UCL injury can range from mild discomfort to sudden, sharp pain. Common symptoms include:

• Pain on the inner side of the elbow, especially during or after throwing.
• A sudden \"pop\" or tearing sensation on the inner elbow during a throw.
• A feeling of instability, as if the elbow might give out when throwing.
• Numbness, tingling, or weakness in the ring and pinky fingers (caused by irritation of the nearby ulnar nerve).
• Decreased throwing speed or accuracy.

Q5. How is a UCL injury diagnosed?

Dr. Veillette will perform a thorough assessment to diagnose a UCL injury, which typically involves:

• A physical examination of your elbow to check for tenderness, stability, and range of motion.
• Special tests, such as the valgus stress test, to see if the ligament is loose.
• Imaging tests, including an X-ray to check for bone spurs or fractures, and a magnetic resonance imaging (MRI) scan (often with contrast dye) to clearly visualize the torn ligament.

Q6. When is UCL reconstruction surgery recommended instead of non-surgical treatment?

Surgery is recommended if you have a complete tear of the UCL and wish to return to high-level throwing sports or heavy overhead activities. If non-surgical options like rest, physical therapy, and activity modification do not resolve your pain or instability, reconstruction is the standard pathway to restore the joint's stability.

Q7. What are the different types of grafts used for UCL reconstruction?

During the surgery, a graft is used to replace the torn ligament. The most common graft options include:

• Palmaris longus tendon: A small, non-essential tendon located in the forearm, which is the most frequent choice.
• Hamstring tendon: A portion of the hamstring tendon from the back of the knee, which provides a strong, thick graft.
• Allograft: A healthy tendon harvested from a deceased donor, which avoids the need to take tissue from your own body.

Q8. What is the difference between an autograft (using my own tissue) and an allograft (using donor tissue)?

An autograft uses a tendon from your own body (like the palmaris longus or hamstring). This has the advantage of zero risk of tissue rejection and excellent long-term healing, though it does require a second surgical site to harvest the tendon. An allograft uses donor tissue, which eliminates the second incision and donor-site pain, but carries a tiny risk of tissue rejection or slower initial integration.

Q9. What type of anesthesia is used during the surgery?

Tommy John surgery is typically performed under a combination of general anesthesia (which puts you to sleep) and a regional nerve block. The nerve block numbs your arm and provides excellent pain relief for many hours after the surgery, helping you wake up comfortable and relaxed.

Q10. How is the Tommy John surgery performed?

The surgery is performed through an incision on the inner side of your elbow. Dr. Veillette will:

• Harvest the chosen graft tendon (if using an autograft).
• Carefully expose the elbow joint and clean away the damaged UCL tissue.
• Drill small tunnels into the humerus (upper arm bone) and ulna (forearm bone) at the exact insertion points of the original ligament.
• Thread the graft tendon through these tunnels and secure it tightly using sutures or special anchors to rebuild the ligament.
• If necessary, gently relocate the ulnar nerve to prevent it from being pinched or irritated during recovery.

Q11. What should I expect immediately after surgery in the recovery room?

You will wake up with your arm placed in a sterile dressing and a plaster splint or hinged brace to protect the new ligament. Your arm will be elevated, and you will be monitored as the anesthesia wears off. Because of the nerve block, your arm will feel numb and heavy, which is completely normal and helps control immediate post-operative pain.

Q12. How do I manage my elbow splint or brace after surgery, and when can it be removed?

The splint or brace is critical to protect the healing graft. You must keep it clean and completely dry. It should not be removed or adjusted without Dr. Veillette's explicit instructions. Usually, the initial splint is replaced with a customizable hinged elbow brace at your first follow-up appointment (about 7 to 10 days post-op), which will gradually allow more movement over the following weeks.

Q13. What is the best way to sleep and position my arm after Tommy John surgery?

To reduce swelling and discomfort, you should sleep on your back with your surgical arm elevated on a few pillows so that your elbow is positioned above the level of your heart. Avoid sleeping on the side of your surgery or letting your arm dangle. Wearing your brace or splint to bed is mandatory to prevent accidental bending or twisting of the elbow while sleeping.

Q14. What does the rehabilitation timeline look like, and when can I return to sports?

Rehabilitation is a gradual, structured process that requires patience:

• Weeks 1 to 6: Focus on protecting the graft, controlling pain, and slowly restoring gentle range of motion in the brace.
• Months 2 to 4: Focus on strengthening the wrist, forearm, shoulder, and core muscles while restoring full elbow movement.
• Months 4 to 6: Progression to light sports-specific training and advanced strengthening.
• Months 6 to 9+: High-level throwing athletes begin a progressive throwing program, with a full return to competitive pitching taking 12 to 18 months.

Q15. What are the potential risks or complications associated with UCL reconstruction?

While Tommy John surgery has a very high success rate, potential risks include:

• Temporary or permanent numbness or tingling in the pinky and ring fingers due to ulnar nerve irritation.
• Stiffness or loss of full extension (straightness) in the elbow.
• Infection, bleeding, or blood clots.
• Graft failure or stretching, which may require revision surgery.

We encourage you to write down any specific questions you have and discuss them thoroughly with your surgeon, doctor, or physical therapist. They are your best resource for personalized advice and care.

Disclaimer: This brochure provides general information and is not a substitute for professional medical advice. Always consult your doctor or qualified healthcare provider with any questions you may have regarding your specific medical condition and treatment plan.