Finger bruise

Introduction Due to the increasing use of industrial and agricultural production machinery, the use of machinery, electrical appliances and other products in people's lives has increased, and hand injuries have become a common multiple injuries. The finger is subjected to an external force to cause soft tissue injury. After hand injury, especially it is estimated that the joint function is difficult to return to normal in the future, and even the joint stiffness will occur. Fixing at this position can keep the injured hand to the maximum function.

Cause

Subject to external force, soft tissue injury, door and window extrusion can only cause finger injury, such as hemorrhage, nail bed rupture, distal phalanx fracture, etc., wheel and machine roller extrusion, can cause extensive skin avulsion and even before Hand skin degloving injury, multiple open fractures and joint dislocation, and severe destruction of deep tissues, sometimes amputation of fingers and full-handed lesions.

The hand function position is the position where the hand can play the maximum function, such as the hand, the fist, the knead, etc., which is expressed as the wrist extension 20 degrees - 25 degrees, the slight ruler is biased, the thumb is in the palm position, and the palm finger The joint and the shoulder joint micro-flexion technique slightly flipped the finger, the metacarpophalangeal joint and the proximal shoulder joint were half-flexed, the distal finger joint was slightly flexed, and the joint flexion position of each finger was more consistent.

an examination

Related inspection

Arthroscopic examination of bone and joint soft tissue CT

(1) Understand the location and nature of the wound: According to the local anatomical relationship, the possibility of damage to various important tissues such as tendons, nerves and blood vessels under the skin is preliminarily estimated.

(2) Estimation of skin defect: Whether the wound skin has defects, the size of the defect, whether it can be directly sutured and directly sutured will affect wound healing.

(3) Judgment of skin vitality: The nature of the injury is an important factor affecting the vitality of the damaged skin, such as cutting injury, good skin edge vigor, and easy wound healing. Rolling and crushing can cause extensive skin avulsion, especially skin exfoliation, the skin surface is intact, and the skin is sneak separation from the underlying tissue. The blood circulation of the skin and its base is interrupted, which seriously affects the skin's survival and should be highly valued.

(4) Capillary reflow test: When the skin surface is pressed, the skin color turns white, and after releasing the pressed finger, the skin color quickly returns to red, indicating that the vitality is good, the skin color is slow to recover, and even if it is not restored, the vitality is Bad or no vitality.

Differential diagnosis

Finger injuries are usually sprains and contusions. Slight injury may cause local congestion, blueness, swelling, and pain in the joints of the fingers, which may limit joint activity. In addition to the above conditions, severe injuries may be accompanied by deformation and dislocation of the finger joints. From a medical point of view, this is due to excessive or sudden pulling of the ligaments and joint capsules around the finger joints, slight tears in the light, severe tearing of the ligaments, rupture of the joint capsules, dislocation of the interphalangeal joints, and even fracture.

Diagnosis: The finger was hurt, it felt very painful, the finger was hot, and the finger began to swell.

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