Little finger feeling gone

Introduction Ulnar nerve injury is mainly wrist injury, mainly manifested as interosseous rib, sacral muscle, ring caused by buckling muscle paralysis, small finger claw deformity and finger adduction, abduction obstacle and Froment sign and hand ulnar side One and a half fingers on the ulnar side feel the obstacle, especially the little finger feels gone.

Cause

(1) Causes of the disease

1. Crush injuries are the most common and cause direct violence. Nerve injuries are often severe, often accompanied by nerve defects.

2. Pulling injuries such as elbow internal humeral fractures, forearm ulna and radius fractures, and ulnar metacarpal fractures can directly cause ulnar nerve injury.

3. At the elbow, the ulnar nerve can be directly traumatized or combined for fracture dislocation.

4. Wrist and elbow cuts are more common.

5. If you do not pay attention to the protection during general anesthesia, the arm will hang over the side of the operating table, which may cause paralysis due to oppression.

6. In the cervical rib or anterior scalene muscle syndrome, the ulnar nerve is the most damaged.

an examination

Related inspection

Electromyography, short finger, short flexor muscle strength test, small finger, palm muscle strength test, pain sensation

Physical examination is the main one. Perform a myoelectric examination if necessary. Electromyography checks for nerve damage and extent.

1. The neurological examination showed: the intercostal rib, the sacral muscle, the ring caused by the buckwheat muscle paralysis, the small finger claw deformity and the finger adduction, the abduction obstacle and the Froment sign, and the hand ulnar side and the ulnar side one and a half. The fingers feel the obstacle, especially the little finger feels gone. In addition to the above performance, the injury on the elbow has another ring and small finger flexion dysfunction.

2. Perform a myoelectric examination if necessary. Electromyography checks for nerve damage and extent.

Differential diagnosis

Should be differentiated from other symptoms of the little finger diagnosis:

1. Can not flex the wrist to the ulnar side and the distal knuckle of the flexor ring little finger

Can not bend the wrist to the ulnar side and the distal knuckle of the flexor ring of the little finger is common in the ulnar nerve injury. Other symptoms include injury on the elbow, ulnar wrist flexor and ulnar flexor.

2. The little finger has an unexplained pain

According to the theory of traditional Chinese medicine meridians, the fingertips of the five fingers have acupoints, and they are closely related to the internal organs. If there is a fingertip that feels particularly painful, it indicates that there is something wrong with the internal organs associated with this acupoint.

A person with a small finger pain: it is a problem with the heart or the small intestine. On the side of the ring finger, the fingertips of the little finger have less punch points and the other side has Shaoze points. Shao Chong is closely related to the heart, so when you have a heart attack, press the fingertips of the little finger to ease the attack. Shaoze is the meridian point of the small intestine. When the small intestine is not good, you can press the fingertip.

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