Thumb Sprains & Skier’s Thumb · Kitchener, Waterloo & Cambridge
A thumb sprain is a stretched or torn ligament at the knuckle where the thumb meets the palm; a tear of the ligament on the inner side of that joint is called skier’s thumb. Partial tears are usually held in a splint or cast, but a complete tear often needs surgery, so a thumb joint that feels loose should be seen by a physician early. At CARESPACE you start with a physiotherapist, who assesses and treats at the first visit.
What a thumb sprain is
A ligament braces each side of the thumb’s main knuckle. Most thumb sprains involve the one on the inner side of the joint, the ulnar collateral ligament or UCL, which is injured about ten times as often as its partner on the outer side. As with other sprains there are three grades: stretched, partly torn, and completely torn or pulled off the bone. A sudden tear is skier’s thumb; gamekeeper’s thumb is the name for the same ligament worn loose by repeated stress.
Symptoms of a thumb sprain
- Bruising, tenderness and swelling near the base of the thumb
- Pain, which is not always there at the moment of injury
- Difficulty grasping things between the thumb and index finger
- With a complete tear, a lump on the inner side of the thumb, and a joint that feels loose or unstable
What causes a thumb sprain
The thumb is forced back or out to the side, away from the fingers. Falling onto an outstretched hand is the most common way. Falling with a hand strapped to a ski pole is the one that gave the injury its name, which makes it worth knowing about before a day on the slopes at Chicopee. A ball or racquet striking the thumb can do the same, and thumb sprains are common in football, baseball, softball and basketball.
How a thumb sprain is diagnosed
The key test is a sideways stress on the joint, compared with the other thumb. A partial tear gives a little and then stops firmly; a complete tear has no firm end-point. An X-ray comes first when a break is possible, because the ligament can pull a chip of bone away with it. If more detail is needed, MRI gives more consistent results than ultrasound, whose reported accuracy runs from 40% to 92% depending on who performs it.
The reason for the care is the Stener lesion: after a complete tear, the torn end of the ligament can be trapped on the wrong side of a neighbouring sheet of tissue, where it is unlikely to give a stable joint without surgery. Reports of how often that happens range from 12% to 70% of complete tears.
Thumb pain without an injury is usually something else. Pain on the thumb side of the wrist points to De Quervain’s tenosynovitis, clicking with tenderness in the palm to trigger thumb, and long-lasting stiffness at the base of the thumb to arthritis. Pain nearer the wrist after a fall raises the question of a scaphoid fracture, covered on the Wrist Sprains page.
When a thumb injury needs urgent care
Call 911 or go to an emergency department, and do not drive yourself, if after a fall or other injury a bone is sticking out of the skin; a cut is bleeding heavily; you heard a crack, snap, grinding or popping noise when it happened; the arm, wrist, hand or thumb has changed shape or sits at an odd angle; it has changed colour, looks blue or grey, or feels cold to the touch; or it is numb, tingling or has pins and needles.
Go to an urgent care clinic or an emergency department the same day if the pain is severe, is getting worse or stops you using the hand; you feel faint, dizzy or sick from the pain; you cannot move your wrist, thumb or fingers, or cannot hold things; there is a large amount of swelling or bruising, or either is getting worse; the wrist or thumb feels very stiff or is difficult to move; your wrist, thumb or a finger has changed shape or colour, or you have lost the feeling in part or all of your hand, with no injury to explain it; you have a lump on your wrist that is very painful, hot or red; or you feel unwell, have a very high temperature, or feel hot, cold or shivery, which could be an infection. These lists follow NHS advice from the UK, put in Ontario terms; where its pages differ, the more cautious instruction is given. None of these should wait for an appointment with us.
The emergency departments in Waterloo Region are:
- WRHN @ Midtown (formerly Grand River Hospital), 835 King St. W., Kitchener
- WRHN @ Queen’s Blvd. (formerly St. Mary’s General Hospital), 911 Queen’s Blvd., Kitchener
- Cambridge Memorial Hospital, 700 Coronation Blvd., Cambridge
If you cannot get there safely, call 911.
See a physician or nurse practitioner, or go to an urgent care clinic, if none of those signs applies but wrist pain has not gone away within a day of a fall or other injury. Pain that lasts may be a sign of a broken bone, and with a broken scaphoid, on the thumb side of the wrist, the pain is not always severe. Do the same if pain and swelling in a thumb continue for more than 48 hours, or if the thumb joint feels loose, which can mean the ligament is completely torn. If you think your wrist might be broken, do not try to treat it yourself: have it seen that day. Both time limits are the American Academy of Orthopaedic Surgeons’ advice.
What the evidence says about treating a thumb sprain
- How strong it is. Not very. A 2013 systematic review found 14 studies (293 thumbs), all but two of them level IV evidence, and concluded that there is no consensus on treatment; a 2018 review of complete tears judged every study it included to be at high risk of bias.
- Partial tears are immobilized. Four to six weeks in a splint or cast, then movement, with strengthening by six to eight weeks, is the widely accepted course.
- Complete tears are usually operated on. Surgery has not been tested against splinting, though: the 2018 review found no prospective evidence, randomized or observational, to support operating. In one series of complete tears treated in a splint, 15% failed; in another, results with a functional brace were generally satisfactory, though the failures could not be predicted from the first examination.
- Surgical results are good, early or late. In the 2013 review, non-surgical treatment (32 thumbs) often failed and led to surgery. Repair of fresh tears and reconstruction of old ones both gave excellent results, with no significant difference between them, and complications were rare.
- Splint or plaster. One trial found no difference in movement, grip strength or sick leave between a functional splint and a plaster cast, and there is only weak evidence that moving the thumb early after a surgical repair helps.
What a doctor may offer
CARESPACE does not provide these, but it helps to know where they fit: X-rays, including one taken while the joint is stressed; MRI or ultrasound; a thumb cast; and referral to an orthopaedic or hand surgeon. Surgery reattaches the ligament to the bone, and is followed by 6 to 12 weeks in a short arm cast or splint.
How CARESPACE treats thumb sprains
Physiotherapy
A physiotherapist can stress the joint gently against the other thumb, test pinch and grasp, and feel for a lump on the inner side. For a partial tear, a physiotherapist can advise on protecting the thumb in a splint, then guide the return of movement and the strengthening that follows. For athletes that includes protecting the thumb from sideways forces on the way back to play. CARESPACE supplies braces, splints, straps and tape.
Occupational Therapy
A partial tear is treated mostly by the splint, worn through weeks of ordinary life. Splints can be custom-made, and at one Ontario hospital’s hand clinic the therapists who design and fabricate them are occupational therapists or physiotherapists. An occupational therapist can fit a thumb splint and help you manage the pinch-heavy parts of your day while you wear it. Ask when you book whether a custom-made splint is available.
See our occupational therapy team →
Other services people ask about
Chiropractic and massage therapy do not appear in the thumb ligament research we read, and massage is best avoided for the first couple of days after any sprain.
Where most people start
Start with Physiotherapy. If the joint feels loose or has a lump at its inner side, see a physician or nurse practitioner first.
How your team works together
A partial tear mostly needs one service. Physiotherapy leads; occupational therapy can add a splint and task changes. A complete tear belongs to a hand surgeon first, with rehabilitation afterwards.
Chiropractors
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Shannon Webster, BA (Hons), DC
Chiropractor, Clinic Director
You should not have to keep organizing your life around pain when Dr.
No availability About Shannon Osteopathic Manual Practitioners
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Evening availability
Aliya Malek, BPT, DOMP
Osteopathic Manual Practitioner, Assistant Director
You don’t need another rushed appointment when your body is asking for careful, skilled hands and a plan that finally makes sense.
Browse by service: physiotherapists and occupational therapists.
What to expect at your first visit
- What happened. Which way the thumb was forced, when, and what you cannot do now: turn a key, hold a pen, grip a pole.
- A comparison of both thumbs: swelling, the tender point, sideways stability and pinch strength.
- Partial or possibly complete. Whether a physician and an X-ray come before anything else.
- First treatment and a plan: how the thumb will be protected, for how long, and when strengthening starts.
What you can do at home
- Try not to use the hand for at least 48 hours.
- Put ice or a cold pack where the thumb joins the hand for up to 20 minutes at a time, every 1 to 2 hours while you are awake, for three days or until the swelling goes down.
- Use an elastic bandage that is not tight enough to restrict blood flow, and keep the hand raised above your heart.
- For temporary support until you can get a splint, tape something like a lollipop stick to the thumb.
- No heat packs or hot baths for a few days after the injury or while the thumb is swollen, and no heavy lifting or tight gripping.
- If you have been given a splint or cast, wear it as directed; it may need to stay on at all times.
How long a thumb sprain takes
A partial tear means about four to six weeks in a splint or cast, with strengthening under way by six to eight weeks. After surgery, expect 6 to 12 weeks in a cast or splint, and a protective splint for sport for three months after a repair (at least three after reconstruction of an old tear). A tear is generally considered chronic after three to four months, and chronic instability can leave pain and a weak pinch and grip.
Thumb sprain treatment in Kitchener, Waterloo and Cambridge
Kitchener. Physiotherapy in Kitchener. Locations: Victoria North, Fischer-Hallman, Westmount East and Deer Ridge.
Waterloo. Physiotherapy in Waterloo. Locations: Weber North, Uptown Waterloo and Waterloo GoodLife.
Cambridge. Physiotherapy in Cambridge. Location: Hespeler Road.
The city pages linked above show the locations and practitioners for each service, with their next availability.
Common questions
How do I know if my thumb is sprained or the ligament is torn?
Not from pain alone, which is not always there at first. A joint that feels loose and a lump on the inner side of the thumb suggest a complete tear. The stress test and, if needed, an MRI help to settle it.
Does skier’s thumb need surgery?
A partial tear usually does not. A complete tear is usually operated on, although a 2018 review found no trial comparing surgery with a splint.
Can I ski or play with a sprained thumb?
Even a partial tear compromises sport through pain and weakness, and the thumb needs protecting from sideways forces. Our sources give no return date for a partial tear; after a surgical repair, a splint is worn for sport for three months.
What happens if I just leave it?
Ignoring a sprained thumb in the hope that it will heal by itself may lead to chronic instability, weakness and arthritis. Even a mild sprain should be seen by a physician or nurse practitioner if it does not improve quickly.
Can I get a thumb sprain treated in Waterloo?
Yes. Physiotherapy in Waterloo is the place to start; book online or call 519-208-2273.
Do I need a referral?
No. Book online or call 519-208-2273. You pay at each visit and receive a receipt for your extended health plan. More on fees and insurance →
Sources
- Samora JB, Harris JD, Griesser MJ, Ruff ME, Awan HM. Outcomes after injury to the thumb ulnar collateral ligament: a systematic review. Clinical Journal of Sport Medicine, 2013. Read as the abstract.
- Mikhail M, Wormald JCR, Thurley N, Riley N, Dean BJF. Therapeutic interventions for acute complete ruptures of the ulnar collateral ligament of the thumb: a systematic review. F1000Research, 2018.
- Avery DM, Inkellis ER, Carlson MG. Thumb collateral ligament injuries in the athlete. Current Reviews in Musculoskeletal Medicine, 2017.
- American Academy of Orthopaedic Surgeons, OrthoInfo. Sprained Thumb and Scaphoid Fracture of the Wrist. No review date shown; read November 2026.
- MyHealth.Alberta.ca. Skier’s or Gamekeeper’s Thumb: Care Instructions. Current as of July 2024.
- St. Joseph’s Health Care London, Roth | McFarlane Hand and Upper Limb Centre. Hand Therapy: What To Expect. Page updated August 2026.
- NHS (UK). Thumb pain (reviewed June 2025), Wrist pain and Finger pain (reviewed November 2025), Sprains and strains (reviewed April 2024) and Broken arm or wrist (reviewed October 2026).
- Chicopee Ski & Summer Resort. Official site. Viewed November 2026.
Related conditions
Wrist & Hand Pain · Wrist Sprains · De Quervain’s Tenosynovitis · Trigger Finger
Ready to book?
Book online with a physiotherapist, or call 519-208-2273 and our Central Reception Team will match you with the right person and the closest location.