UCL Reconstruction (Tommy John Surgery)
UCL Reconstruction (Tommy John Surgery) in Houston
The ulnar collateral ligament (UCL) is the main stabilizer of the inside of the elbow during throwing motions. Tears typically occur from the repetitive valgus stress of overhead throwing—most commonly in baseball pitchers, but also in football quarterbacks, javelin throwers, and other overhead athletes. UCL reconstruction (commonly known as "Tommy John surgery" after the first pitcher to undergo the procedure in 1974) replaces the torn ligament with a tendon graft, restoring elbow stability and allowing return to competitive throwing.
Who Is a Candidate
UCL reconstruction is most often considered for:
- Throwing athletes with a complete UCL tear, particularly pitchers
- Throwing athletes with partial tears that have failed structured non-operative treatment
- Patients with persistent symptoms of medial elbow pain, loss of throwing velocity, or sense of elbow instability with throwing
- Patients who wish to return to a high level of overhead athletic activity
Non-throwing athletes with UCL injuries rarely require surgery; they typically improve with activity modification and physical therapy. For acute, isolated, distal UCL tears in younger athletes, UCL repair (rather than reconstruction) using suture-tape augmentation may be an option with a faster recovery—appropriate patient selection is important.
Diagnosis and Pre-Operative Assessment
UCL injuries are evaluated with a careful history (typical mechanism, loss of velocity, "popping" sensation during a throw), specific physical examination tests (moving valgus stress test, milking maneuver), and imaging. MRI—often with intra-articular contrast (MR arthrogram)—is the gold standard for confirming the diagnosis and characterizing the tear.
How the Procedure Works
UCL reconstruction is performed under general anesthesia, often combined with a regional nerve block.
- Graft harvest. A tendon graft is harvested—most commonly the palmaris longus from the same wrist, or alternatively a hamstring tendon. The palmaris longus is absent in approximately 15% of patients and is identified pre-operatively.
- Approach. An incision is made on the inside of the elbow, and the soft tissues are carefully developed to expose the medial elbow.
- Ulnar nerve protection. The ulnar nerve is identified and protected throughout the procedure. In some cases, the nerve is transposed (moved) to the front of the elbow to protect it long-term.
- Bone tunnel preparation. Small bone tunnels are drilled at the original UCL attachment sites on the humerus (upper arm bone) and ulna (forearm bone).
- Graft passage and fixation. The tendon graft is passed through the tunnels in a figure-eight or docking configuration, tensioned to recreate the original ligament, and fixed in position.
- Closure. The incision is closed in layers, and a hinged elbow brace is applied.
The procedure typically takes about two hours and is performed as outpatient surgery.
Recovery Timeline
UCL reconstruction has one of the longest recovery timelines in orthopaedic sports surgery because the graft must mature into a new ligament before being stressed by throwing.
Weeks 0–2
- Hinged brace, locked in approximately 90 degrees of elbow flexion
- Gentle hand and wrist motion only
- Pain control and wound care
Weeks 2–6
- Hinged brace with progressive range of motion permitted
- Light hand and forearm strengthening
Weeks 6–12
- Brace discontinued
- Progressive elbow strengthening
- Lower-body and core conditioning continues
Months 3–4
- Progressive elbow and shoulder strengthening
- Light functional progression
Months 4–6
- Initiation of an interval throwing program (light toss, gradual progression of distance and intensity)
- Continued strengthening
Months 6–9
- Progression of throwing program toward full-distance, full-intensity throwing
- Position-specific drills
Months 9–12
- Return to competitive throwing for most pitchers
- Some high-level pitchers require longer
Outcomes
Approximately 80–85% of pitchers return to their prior level of competition after UCL reconstruction. Return rates are higher in non-pitching positions and in non-baseball overhead athletes. The most important determinant of outcome—after technical surgical execution—is strict adherence to the structured throwing program. Premature return to throwing is a leading cause of re-injury and is to be avoided.
Houston Locations and Scheduling
UCL reconstruction is performed at outpatient surgery centers in Houston affiliated with UTHealth Houston and Memorial Hermann. Office consultations are available at Memorial Villages and Texas Medical Center locations.
Throwing athletes with suspected UCL injuries benefit from early specialist evaluation. Appointments are scheduled through UTHealth Houston at 713-486-1700.
Frequently asked questions
What is UCL reconstruction (Tommy John surgery)?
UCL reconstruction is a surgical procedure that replaces a torn ulnar collateral ligament on the inside of the elbow with a tendon graft. It is the modern treatment for throwers and other overhead athletes with a complete UCL tear and is commonly referred to as "Tommy John surgery" after the first pitcher to undergo the procedure.
Who needs UCL reconstruction?
UCL reconstruction is typically considered for throwing athletes—particularly pitchers—with a complete UCL tear, persistent symptoms of elbow instability, and a desire to return to high-level throwing. Some partial tears that fail non-operative treatment also require surgery.
Are there alternatives to UCL reconstruction?
Yes. Many partial UCL tears improve with structured rest, physical therapy, and a graded return-to-throw program. UCL repair (rather than reconstruction) using suture augmentation is an option for certain acute tears in younger throwers, typically with a faster recovery. Platelet-rich plasma (PRP) injections have been used as an adjunct, though evidence is mixed.
How is UCL reconstruction performed?
A tendon graft—typically the palmaris longus tendon from the same arm or a hamstring tendon—is harvested and used to reconstruct the UCL. Bone tunnels are drilled in the humerus and ulna at the original ligament attachment points, and the graft is passed through and tensioned to recreate the ligament. The ulnar nerve is identified and protected throughout.
How long is the recovery from Tommy John surgery?
Recovery is staged over approximately twelve months. A brace is used early, gradual motion is restored over three months, strengthening progresses through six months, and a structured throwing program typically begins at four to five months. Competitive pitching usually returns around twelve months after surgery, sometimes longer for high-level pitchers.
What is the success rate of UCL reconstruction?
Approximately 80–85% of pitchers return to their previous level of competition after UCL reconstruction. Return-to-throw rates are higher in non-pitching positions and in non-baseball overhead athletes. Outcomes depend on adherence to the structured rehabilitation program and avoidance of premature return to throwing.