cubitus valgus
Introduction
Introduction to elbow eversion When the normal elbow joint is fully extended, there is a mild valgus male about 10° and a female about 15°. This valgus angle is called a carrying angle. If this angle is increased, the forearm is too abducted, called the elbow valgus deformity. The most common cause of elbow valgus is a supracondylar fracture of the humerus and a distal radius fracture in children without decompression or reduction. The fracture of the medial or lateral humerus in children has not been reset or poorly restored, the humerus is too early, or ischemic necrosis. Elbow valgus can be caused by dislocation of the elbow without unreset or poorly reset. basic knowledge The proportion of the disease: the incidence rate is about 0.001%, more common in childhood elbow trauma malformation Susceptible people: no specific population Mode of infection: non-infectious Complications: fracture ulnar nerve injury
Cause
Elbow valgus
Poor reset (30%):
Children with humeral supracondylar fractures and distal radius fractures who have not been reset or have a poor reduction are the most common causes of elbow valgus deformity. The elbow dislocation without proper reduction or reduction is due to the lateral and lateral growth of the distal radius. balanced. Children with internal and external humeral fractures failed to be restored or reset poorly. External humeral epiphysis or ischemic necrosis of the humerus can cause elbow valgus. The elbow valgus caused by internal humeral fracture is caused by excessive growth of the tibia.
After humeral head resection (30%):
The reason for the elbow valgus is that the important mechanical barrier of the proximal humerus disappears after the removal of the humeral head, which causes abnormalities in the biomechanics of the elbow joint and the forearm.
Prevention
Elbow valgus prevention
The prevention of this disease is mainly to early detection, early diagnosis, early treatment, and some patients who need surgical reduction after fracture or dislocation should be treated promptly, especially for children with internal and external humeral fractures. To prevent the occurrence of this disease if the reset is not timely.
Stay optimistic and happy. Long-term mental stress, anxiety, irritability, pessimism and other emotions will make the balance of the cerebral cortex excitatory and inhibition process imbalance, so you need to maintain a happy mood. Diet should pay attention to light, mostly with food porridge, noodle soup and other foods that are easy to digest and absorb, can eat more fresh fruits and vegetables to ensure the intake of vitamins.
Complication
Elbow valgus complications Complications, ulnar nerve injury
Elbow valgus is mainly due to the consequences of elbow trauma and lesions. Therefore, when trauma and lesions occur in the elbow, the possibility of deforming the elbow and valgus, especially the supracondylar fracture or elbow dislocation, should be considered. When you must first correct the lateral displacement, and then make other re-determination, as far as possible to the anatomical re-determination, if it is mild deformity, and asymptomatic, do not have to treat, if the deformity is obvious or delayed ulnar nerve injury Early surgery should be performed to avoid irreversible changes in osteoarthritis or ulnar nerve injury.
Symptom
Elbow valgus symptoms Common symptoms Powerless muscle myasthenia sensation Disorders Joint pain Intramuscular atrophy Elbow valgus angle Increase pathological nerve injury Joint local tingling
1, elbow appearance deformity, often asymptomatic, elbow valgus angle increased when the elbow joint is straight, up to 30 °; elbow joint activity generally no obvious obstacle; late elbow joint articular surface injury can cause pain.
2, for patients with severe valgus, because the ulnar nerve is in a high tension traction state, or after the trauma due to ulnar nerve adhesions often rubbed, can occur in delayed ulnar neuritis and ulnar nerve injury, that is, unconsciously In the middle of the hand ulnar innervation area, tingling and sensory disturbances (half finger and ring finger), the inner muscles of the hand are weak and atrophy.
3, engaged in heavy physical labor, can occur elbow joint osteoarthritis.
Examine
Elbow eversion test
Because the disease is generally easy to make a diagnosis based on the appearance of the spring appearance, it is less likely to use the auxiliary examination. Clinically, some patients with insignificant performance can be diagnosed by X-ray examination.
X-ray examination of the elbow: the angle of the elbow joint is increased or decreased, and even the negative angle may have osteoarthritis.
Diagnosis
Elbow valgus diagnosis
The diagnosis of this disease is relatively simple, according to its characteristic appearance, that is, the elbow valgus angle increases when the elbow joint is extended, up to 30°, so there is no need for differential diagnosis. Because the disease is generally easy to make a diagnosis based on the appearance of the spring appearance, it is less likely to use the auxiliary examination. Clinically, some patients with insignificant performance can be diagnosed by X-ray examination.
