Aetiology
Dislocation of the thumb is caused by a traumatic event, such as a fall, a direct blow to the thumb, or a twist of the joint.
Diagnosis
Diagnosis of a dislocated thumb is made by physical examination, where the affected joint can be felt out of its normal position. X-rays may also be taken to confirm the diagnosis.
Differential diagnosis
Differential diagnoses include a fracture, sprains, and tendinitis.
Treatment
Treatment of a dislocated thumb includes reducing the joint back into place and immobilizing it with a splint. Pain medications and anti-inflammatory medications may also be prescribed. Surgery may be necessary in some cases.
Prognosis
With appropriate treatment and immobilization, a dislocated thumb usually heals within four to six weeks. If the joint is severely damaged, further treatment or surgery may be required.