Traumatic rupture of collateral ligament of finger at metacarpophalangeal or interphalangeal joint is usually caused by direct trauma to the finger, such as a sports injury, or may be caused by repetitive strain or overuse.
Diagnosis of traumatic rupture of collateral ligament of finger is typically made through a physical examination and imaging studies, such as X-ray or magnetic resonance imaging (MRI). Physical examination may reveal swelling, tenderness, or deformity of the affected finger.
The differential diagnosis of traumatic rupture of collateral ligament of finger includes other injuries, such as tendon and ligament tears, fractures, and joint dislocation.
Treatment of traumatic rupture of collateral ligament of finger usually involves rest, splinting, and physical therapy. Severe injuries may require surgery to repair the ligament, and may require a period of immobilization and rehabilitation after the surgery.
The prognosis for patients with traumatic rupture of collateral ligament of finger is generally good, although the recovery time may vary depending on the severity of the injury and the type of treatment received. Most patients can expect to return to their pre-injury level of activity within a few months.