S68.02

Clinical Causes: Accidental cuts or crush injuries from machinery or tools Industrial accidents involving sharp or heavy objects Falling onto or striking the hand with a heavy or sharp object Motor vehicle accidents impacting the hand Crush injuries during construction or carpentry work

Key Symptoms: Partial loss of thumb tissue at the metacarpophalangeal joint Severe pain at the injury site Swelling and bruising around the thumb Bleeding from the wound Limited mobility or inability to move the thumb properly Visible deformation or missing part of the thumb Potential signs of nerve or vessel damage, such as numbness or coldness

Diagnosis Path: Diagnosis typically involves a physical examination to assess the extent of tissue loss and damage. Imaging studies like X-rays are essential to evaluate bone involvement and rule out additional fractures or injuries. A healthcare professional will consider the mechanism of injury, clinical signs, and imaging results to determine the severity and plan appropriate management.

Treatment Protocols: Management of a partial traumatic amputation of the thumb's metacarpophalangeal joint may include several approaches depending on the injury's severity. Treatment options may consist of: - Emergency wound care to control bleeding and prevent infection - Surgical intervention to clean the wound, debride damaged tissue, and repair or reconstruct the joint and surrounding structures - Possible reimplantation procedures if the amputated tissue is preserved and conditions permit - Use of skin grafts or flaps to cover extensive tissue loss - Formal hand therapy to restore function and strength after initial healing - Using supportive devices like splints or casts as directed by a healthcare provider Recovery can be prolonged, requiring physical and occupational therapy to regain as much function as possible.