S66.328

Clinical Causes: Accidental injuries from sharp objects such as knives, glass, or metal during cooking, work-related activities, or outdoor projects. Falls or slips that result in a hand or wrist trauma involving sharp contact. Crushing injuries or machinery accidents where the finger comes into contact with moving parts or heavy objects. Sport-related incidents, particularly in activities requiring hand use such as basketball, wrestling, or rugby. Physical assaults that involve slashing or stabbing wounds to the hand or wrist. Bite wounds that lead to tearing injuries of the extensor structures.

Key Symptoms: Pain and tenderness localized over the injury site. Swelling and possible bruising around the finger or wrist. Decreased or loss of ability to extend the affected finger normally. Visible cut or tear in the skin, sometimes deep enough to expose underlying tissues. Difficulty moving or holding objects with the affected finger. Possible bleeding from the wound. Sensitivity to touch and possible numbness if nerve tissue is affected. Signs of infection such as redness, warmth, or pus, if the wound is not properly cared for.

Diagnosis Path: Diagnosis involves a thorough physical examination by a healthcare professional, who assesses the extent of the injury and checks for damage to tendons, muscles, and fascia. The clinician may order imaging studies such as ultrasound or MRI to evaluate the severity of soft tissue damage and to rule out associated injuries such as fractures. Proper assessment is crucial for planning an effective treatment approach.

Treatment Protocols: Treatment typically involves surgical repair of the damaged extensor tendons, fascia, and muscles, especially if the laceration is deep or involves significant tissue loss. The procedure aims to restore normal finger function and prevent long-term disability. Post-surgical care includes wound cleaning, antibiotics to prevent infection, and immobilization with splints or casts. Physical therapy and hand rehabilitation exercises may be prescribed afterward to regain strength and mobility. In some cases, minor lacerations may be managed with meticulous wound care and suturing without surgery.