Ulnar collateral ligament (UCL) injury
An injury to the ulnar collateral ligament (UCL) can make overhead activities painful and affect elbow stability, but with the right treatment, most people can return to the activities they enjoy.
What is a UCL injury?
The ulnar collateral ligament (UCL) is one of the main ligaments that keeps the inside of your elbow stable. It connects the upper arm bone (the humerus) to the ulna, one of the two bones in your forearm, helping to support the elbow during throwing, lifting and other overhead movements. A UCL injury happens when this ligament becomes stretched or torn. The injury may develop gradually through repeated stress on the elbow or occur suddenly following a fall or other traumatic injury. This injury is particularly common in people who regularly perform overhead throwing movements, including baseball pitchers, javelin throwers, tennis players and other overhead athletes. Repeated strain on the ligament can eventually affect the stability of the elbow, making everyday activities and sport increasingly difficult. Because symptoms can worsen over time if left untreated, it's important to seek specialist assessment if you have persistent pain, instability or difficulty using your arm.
What are the symptoms?
Symptoms vary depending on the severity of the injury, but commonly include:
- Pain on the inside of the elbow, particularly when throwing
- A feeling that the elbow is unstable or may give way
- Reduced throwing speed, strength or sporting performance
- Difficulty with overhead movements
- Tingling or numbness affecting the ring and little fingers due to irritation of the nearby ulnar nerve ("funny bone")
- Clicking or discomfort during movement in some cases
How is it diagnosed?
Your consultant will begin by discussing your symptoms, how they developed and how they affect your daily activities, work or sport. They'll then examine your elbow, assessing its movement, stability and the surrounding muscles and nerves.
To confirm the diagnosis and understand the extent of the injury, we may recommend:
A detailed medical history
Physical examination
Assessment of elbow movement and ligament stability
Nerve function assessment where appropriate
X-rays to assess the bones and rule out associated injuries
MRI scanning to assess the UCL and surrounding soft tissues
How is it treated?
Treatment depends on the severity of your injury, your symptoms and what you want to return to, whether that's everyday activities, work or competitive sport.
Your consultant will explain your options clearly and recommend a treatment plan that's tailored to your individual needs.
Treatment may include:
- Rest and temporary activity modification
- Ice and pain relief to help manage symptoms
- Anti-inflammatory medication where appropriate
- Personalised physiotherapy to improve strength, movement and elbow stability
- Surgery if the ligament is severely damaged or your goal is to return to high-level overhead throwing sports
The aim is to restore elbow stability, protect the joint and support a safe return to sport and other activities where appropriate.

Treatment routes for UCL injuries
Many UCL injuries can be managed successfully without surgery.
Treatment usually begins with a period of rest, followed by a structured physiotherapy programme designed to restore strength, flexibility and stability around the elbow. As your symptoms improve, you'll gradually return to your usual activities under the guidance of your care team.
Recovery goals after UCL injuries
Recovery initially focuses on:
Reducing pain and swelling Protecting the ligament while it heals Beginning gentle movement when appropriate Preventing stiffness
As healing progresses, rehabilitation aims to:
Restore elbow movement Improve strength and stability Increase confidence using the arm Return to normal daily activities
The final stage of rehabilitation focuses on:
Building strength for work, sport or recreation Improving control and endurance Returning safely to overhead throwing or other sporting activities where appropriate Reducing the risk of further injury
Working with elbow professionals and teams
Our elbow specialists support professional athletes, sports teams, active individuals and people whose work places high demands on their elbows. Working closely with radiologists, physiotherapists and the wider multidisciplinary team, they provide coordinated care from diagnosis through to rehabilitation, helping each person return safely to sport, work or everyday activities.
The same specialist expertise and collaborative approach are available to every patient, whatever your activity level or recovery goals.

Our Experts - Leaders in Elbow treatment
How to pay
We offer flexible options depending on how you choose to access care at Fortius. Whichever option you choose, we’ll help make the process clear and straightforward from the start.

Private medical insurance
If your care is covered by private medical insurance, we’ll usually invoice your insurer directly. Please check your policy in advance and request an authorisation code if your insurer requires one. You’ll be responsible for paying any policy excess or costs that aren’t covered by your insurance.

Paying for yourself
You don’t need private medical insurance to access care at Fortius. If you’re paying for your own treatment, our team will explain the costs clearly and provide a personalised quote before you decide whether to go ahead.
UCL Injury FAQs
A torn UCL often causes pain on the inside of the elbow, particularly during throwing or overhead activities. Some people notice a popping sensation at the time of injury, while others gradually develop pain, weakness or a feeling that the elbow is unstable. A specialist assessment and MRI scan can confirm the diagnosis.
Yes. Many partial UCL tears improve with rest, physiotherapy and a structured rehabilitation programme. Surgery is usually only recommended if the ligament is completely torn, symptoms persist despite treatment or you wish to return to high-level throwing sports.
Recovery depends on the severity of the injury and the treatment you need. Mild injuries may improve within a few weeks to months with rehabilitation. Recovery following UCL reconstruction usually takes significantly longer, particularly before returning to competitive throwing sports.
Most people can return to sport following appropriate treatment and rehabilitation. Your return will depend on the severity of your injury, your progress during rehabilitation and the demands of your chosen sport. Your consultant and physiotherapist will help you return safely when your elbow is ready.
Find a clinic near you
Fortius Clinic Marylebone Wing

Our 79,000 sq ft, seven-story, private hospital on Wigmore Street has 39 en-suite inpatient rooms, consultation and treatment rooms, and a physiotherapy suite.
The hospital has a high-spec imaging suite fully equipped with an MRI, CT scanner and X-ray machine. There are three state-of-the-art operating theatres, two anaesthetic rooms and a recovery bay.
Fortius Clinic London has two Mako robots for hip and knee joint replacements.
- 66 Wigmore StreetW1U 2SB
- +442031952442
- Open 24 hours
- Sports & Exercise Medicine
- Snow Injuries Clinic
- Tendon
- Ultrasound
- X-Ray
- Physician services
- Rheumatology
- CT guided injection
- MRI Scan
- CT Scan
Fortius Clinic City

Our City Clinic is conveniently located between Bank and Monument stations, within the historic and financial heart of London. At our modern, two-floor facility we have nine consulting rooms, spacious waiting areas, well equipped treatment rooms and an imaging centre.
Explore our City Clinic with our virtual tour.
If you are travelling by Tube, our closest underground stations are Bank and Monument, exit 6 for King William Street.
Should you be travelling by car, the closest parking is a three minute drive away at NCP Car Park London Vintry Thames Exchange. If you are attending clinic on a weekday, please be aware that we are based in the congestion charge zone.
- 75 King William StreetEC4N 7BE
- 0203 195 2442
- Monday to Friday from 8.00am to 8.00pm.
- Snow Injuries Clinic
- Tendon
- Sports & Exercise Medicine
- Ultrasound
- X-Ray
- Physician services
- Rheumatology
- MRI Scan
Fortius Clinic Marylebone

Our Marylebone Clinic is conveniently located in the historic area between Baker Street and Marylebone High Street, just off Manchester Square, home to the iconic Wallace Collection. We have seven consulting rooms, private waiting areas on each floor, well equipped treatment rooms and diagnostic imaging.
- 17 Fitzhardinge StreetW1U 2EU
- 020 3195 2442
- MRI Scan
- Ultrasound
- X-Ray
- Physician services
- Rheumatology
Fortius Clinic Wimbledon

Our Wimbledon clinic houses a state-of-the-art imaging centre with a 3T MRI and X-ray scanners, Ultrasound, seven consulting rooms, two spacious waiting areas and well equipped treatment rooms all located on one level, ensuring easy accessibility for all patients.
Our partnership with Spire St Anthony’s Hospital allows us to provide orthopaedic surgery closer to our clinic. We treat a full range of conditions and perform joint replacement surgery using the latest Mako robotic assisted technology.
Take a tour of our clinic virtually through Google 360 views here.
We are open Monday to Friday from 8.00am to 8.00pm, and Saturday mornings from 8.30am to 12.30pm.
If you are travelling by Tube, our closest underground station is Wimbledon (District Line), which also has rail and tramlink services from central London and beyond.
There is no parking available at the clinic, but we have a number of parking facilities all within a 10-12 minute walk of the clinic: Centre Court Car Park, Broadway Car Park, and Hartfield Road Car Park. Please note that all of these facilities are paid car parks.
The building at 22 Worple Road has steps leading up to the front entrance. If you require assistance please inform us before your arrival by calling ahead on 020 3195 2442
- 22 Worple RoadSW19 4DD
- 0203 195 2442
- Snow Injuries Clinic
- Ultrasound
- X-Ray
- MRI Scan
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