Severe thumb sprains are common in young patients and athletes. Their consequences can be severe with inappropriate treatment.
⚠️ "Skier's thumb": Classic accident from pole strap traction or fall on snow with thumb spread
The metacarpophalangeal (MP) joint of the thumb is stabilized by two main collateral ligaments (ulnar and radial) and a capsule. A severe sprain corresponds to complete rupture of one or more of these ligaments.
The patient presents acute pain at thumb base, swelling, sometimes hematoma. The pinch between thumb and index finger is painful and unstable.
In case of complete ligament rupture, surgical treatment is most often recommended to restore joint stability.
The intervention is performed under general or regional anesthesia, most often outpatient. It consists of repairing the ruptured ligament by direct suture.
The risk is evolution toward chronic instability of the thumb MP joint. This instability makes thumb-index pinch painful and ineffective.
Early diagnosis and treatment of fresh sprain are therefore essential to avoid these complications.
Don't neglect a thumb sprain! Early diagnosis and treatment are essential.
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