Traumatic amputation at or near the base of the left thumb is caused by a traumatic injury that severs the thumb from the hand. This can occur from any number of causes, such as a car accident, a work-related injury, or a fall.
Diagnosis of traumatic amputation of the left thumb is made based on physical examination and patient history. The patient will likely report pain and a visible absence of the thumb. A physical exam will confirm the diagnosis.
Differential diagnosis includes traumatic injury to the thumb that does not result in amputation, such as fractures or lacerations.
Treatment of traumatic amputation of the left thumb typically involves surgical repair of the severed tissue, as well as debridement of any dead or damaged tissue. After surgery, the patient may need to be placed in a splint or cast to protect the thumb and help it heal.
The prognosis for traumatic amputation of the left thumb is generally good with proper treatment. The patient may require physical therapy and occupational therapy to regain full function of the hand. In some cases, prostheses may be necessary for full function.