How to treat dislocation of metacarpophalangeal joint

summary

My uncle is a martial arts enthusiast. Once he went to practice Tai Chi with everyone as usual, but when he was in the competition with the other party, he was very relaxed. When he was not prepared, he was suddenly attacked by the other party, resulting in a stab injury to the metacarpophalangeal joint and dislocation of the palm. On a hospital examination, said to be metacarpophalangeal joint dislocation. Let's take a look at the following.

How to treat dislocation of metacarpophalangeal joint

First, simple dorsal dislocation: also known as subluxation, the dislocated phalangeal base articular surface is not completely separated from the articular surface of the metacarpal head, and there is still partial contact. The proximal edge of the avulsed metacarpal plate is located at the palmar and distal side of the metacarpal head. Examination showed that metacarpophalangeal joint was 60 °～ ninety ° Hyperextension deformity. At this time, flexor carpi and proximal interphalangeal joint should be flexed to release flexor digitorum tendon, and then the proximal phalanx base should be pushed from dorsal side to distal side and volar side.

Second: complex dislocation: also known as irreducible dislocation, the proximal phalanx base is not opposite to the metacarpal head, and the proximal edge of the metacarpal plate is located on the dorsal side of the metacarpal head. The dislocated joint usually shows only slight hyperextension deformity, the injured finger leans to one side and slightly protrudes to the dorsal side compared with other fingers, and the proximal interphalangeal joint flexes slightly.

Third: during the operation, it is forbidden to use violence and pull the fingers from the back, so as to avoid the separation of the articular surface and the sliding of the metacarpal plate to the dorsal side of the metacarpal head. Wrist nerve block anesthesia, relaxation of muscle tension, can improve the success rate of closed reduction. After reduction, the metacarpophalangeal joint was fixed at 50 ℃ with dorsal plaster support °～ seventy ° Flexion position, 2 weeks later began to exercise.

matters needing attention

The dislocation of metacarpophalangeal joint is mainly caused by indirect external force. The main thing is to prevent finger sprain, stab injury, etc. for patients who have been injured, they should see a doctor in time, so as to get timely treatment in the early stage, so as not to cause more serious damage. At the same time, they should also pay attention to functional exercise under the guidance of doctors, so as to make the hand function recover as soon as possible.