What is an elbow ulnar collateral ligament tear?

Ligaments are strong bands of tissue that attach bone to bone and help stabilize joints. The ulnar collateral ligament (UCL) is located on the medial side (inside) of the elbow. It stabilizes the elbow joint and is under high stress with motions such as overhead throwing. Repetitive high stresses to this ligament can break down the ligament and eventually cause tearing.

What are the symptoms of UCL tears?

Pain on the medial side (inside) of the elbow
Soreness along the medial side (inside) of the forearm
Sudden weakness or inability to throw hard
Tingling or numbness in the ring and pinky fingers

Close up of woman grabbing elbow outside after working out

What causes ulnar collateral ligament tears?

UCL tears can be caused in two different ways:

Overuse injuries

This is the most common way for ulnar collateral ligament tears to occur. Due to repetitive stress on the ligament, there is a gradual breakdown and microtearing of the ligament tissue. This is common among athletes in sports that involve throwing or overhead arm use.

Traumatic injuries

The UCL ligament can also be injured in a fall on an outstretched arm. This type of trauma can rupture the ligament or pull it off the humerus (upper arm bone) with a small chip in the bone. Traumatic injury to the ulnar collateral ligament may occur in combination with elbow fracture or dislocation.

What treatment options are available?

If the symptoms persist, it is recommended to schedule a consultation with Dr. Yoon. A comprehensive evaluation will be performed and a treatment plan can then be discussed based on the findings.

Ulnar Collateral Ligament Tears of the Elbow