radial shaft fracture
Introduction
Introduction to humeral shaft fracture Separate humeral shaft fractures account for only 12% of the total number of forearm fractures, mostly in young adults. basic knowledge Sickness ratio: 0.1% Susceptible people: mostly young and middle-aged Mode of infection: non-infectious Complications: osteoarthritis
Cause
Causes of humeral shaft fracture
Causes:
Direct violence and indirect violence can cause fractures of the humeral shaft.
Pathogenesis:
Direct violence such as blows, crushing, and conduction stress, such as falling down on the hand, can cause fractures of the humerus. The fractures are mostly transverse, short-sloping or wedge-shaped. Because of the support of the ulna, there is no obvious shortening displacement, but Due to the pulling of the muscle, the rotational deformity of the fracture end often occurs. The distal end of the humerus has the anterior muscle attached, the middle part has the pronator muscle attached, and the proximal side has the supinator muscle attachment. After the fracture, due to the pulling of the above muscles, the different parts are There will be different rotational deformities in the fracture. For example, the fracture is distal to the anterior end of the pronator, and the proximal end is affected by the pronator and the supinator, which is basically in the neutral position, while the distal end is affected by the anterior muscle. In the anterior position, the fracture occurs in the proximal side of the pronator's circumflex point, and the proximal end is affected by the supinator muscle, which is in the supination position, while the distal end is affected by the pronator and the anterior muscle. .
Prevention
Prevention of humeral shaft fracture
No special precautions are taken to avoid trauma.
Complication
Complications of humeral shaft fracture Complications osteoarthritis
May cause damage ossification, traumatic osteoarthritis.
Symptom
Symptoms of humeral shaft fractures Common symptoms Joint pain, limb stiffness, wrist swelling and palmarness...
After the injury, the forearm showed swelling and pain, but there was no significant deformity. There was obvious tenderness at the injury site. The forearm activity was obviously restricted. For displaced fractures, abnormal activity and bone squeaking could be perceived, but it was not necessary to check it carefully to avoid aggravating the injury.
Examine
Examination of humeral shaft fracture
X-ray examination, including the elbow, the positive side X-ray of the wrist joint.
Diagnosis
Diagnosis and diagnosis of humeral shaft fracture
Generally, there is no difficulty, but it should be noted that the upper and lower ankle joints are involved at the same time, including dislocation, which is closely related to the choice of diagnosis and treatment methods.
1. History of trauma: all are clear.
2. Clinical manifestations: mainly based on the pain of the forearm, pain, tenderness and limited rotation function.
3. Imaging examination: mainly as X-ray film, generally can be diagnosed, but should pay attention to whether the lower ankle joint injury.
