If you felt a sudden pain on the inside of your elbow while throwing or pushing, you might be dealing with an injury to your ulnar collateral ligament (UCL). This important band of tissue helps stabilize the elbow, especially during activities that require repetitive overhead motion, like throwing a baseball, serving in tennis, or lifting weights.
UCL injuries can come on gradually or suddenly and often include:
Pain or tightness on the inner (medial) side of the elbow
A popping sensation at the time of injury (more common in acute tears)
Weakness or instability when throwing or gripping objects
Swelling or tenderness along the inside of the joint
Decreased throwing velocity or overall athletic performance
Physical Examination
Imaging tests:
MRI or MR arthrogram to view soft tissue damage in detail.
X-ray to rule out bone injuries or look for calcification near the ligament.
Ultrasound to assess for dynamic stability of the ligament.
The right treatment depends on the severity of the injury, your activity level, and personal goals.
Nonsurgical:
Activity modification
Physical therapy to strengthen the surrounding muscles and correct mechanics
Bracing or taping to reduce stress on the UCL during recovery
This approach works well for partial tears or overuse injuries, especially in non-professional athletes.
Surgical:
For complete tears, especially in athletes who want to return to high-level throwing, surgery may be recommended.