Elbow cannot flex

Introduction When the muscles of the elbow flexion or joint dislocation, the elbow joint can not flex, the forearm is straight and drooping, and the upper limb can not do the life movement of the flexion forearm, such as not washing the face, eating, etc.

Cause

Muscle spasms or joint dislocations of the elbow caused by trauma to the shoulders and elbows.

an examination

Related inspection

Bone joint and soft tissue CT examination joint examination Yakason test

Different types of upper extremity muscle spasm occur after paralytic diseases and brachial plexus injury. The flexor elbow muscle group is often damaged, and the elbow joint loses its flexion function. Even if the hand muscle strength survives, it is difficult to play its due role. Seriously affects life and work.

Immediately after the dislocation of the elbow, the patient feels severe pain and cannot flex the elbow joint, and swelling can occur.

Differential diagnosis

Differential diagnosis of elbow joint failure to flex:

1. Elbow joint deformity: The elbow joint is one of the most stable joints of the human body. The maintenance of its stability depends on the integrity of the joint structure. The maximum flexion and extension can reach 160°, and the pre-rotation can reach 85°. About 80°, the pulley has a 6° valgus angle with the long axis of the humerus and an internal rotation angle of 5°7° with the intercondylar axis. The elbow flexion and extension axis is located at the front of the midline of the humerus and forms an angle of 40° with the humeral shaft. . Elbow joint dislocation, fracture and other reasons can lead to elbow joint deformity.

2, elbow lateral swelling and dysfunction: half of the radial head fracture is also called Hahn-steinthal fracture, symptoms and signs: elbow lateral swelling, elbow flexion and extension dysfunction.

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