congenital pseudarthrosis of the clavicle
Introduction
Introduction to congenital clavicular joint Congenital clavicular pseudoarthrosis is a rare form of deformity. It can be found at birth that there is a fissure in the middle of the right clavicle. As the child ages, a painless mass appears locally. Congenital malformations of the clavicle are rare, and the clavicle pseudoarthrosis is even rarer. The formation of pseudoarticular joints is more common in one third of the right clavicle. The shoulder peaks are often displaced forward and downward due to the gravity of the upper limbs, and the clavicle side of the sternum is swollen. Some patients may be swollen on the shoulder side, which may be related to the long-term activity of the upper limbs to stimulate the end of the proliferation. basic knowledge The proportion of illness: 0.005% Susceptible people: young children Mode of infection: non-infectious Complications: clavicular fracture
Cause
Congenital clavicle pseudoarthrosis
Some scholars have recently pointed out that at the 7th week of embryos, the embryonic cartilage center connection at both ends of the clavicle has an obstacle, resulting in a clavicular pseudoarticular joint. The right subclavian artery is located higher, closer to the clavicle, and increases the pressure on the clavicle. It may involve the right clavicle. The reason is occasionally found in the left side of the affected, this situation is due to the right position of the heart and the left subclavian artery is high; bilateral involvement is caused by bilateral neck ribs or the first rib high.
Prevention
Congenital clavicle pseudoarthrosis prevention
The disease is a congenital disease, no effective preventive measures, early diagnosis and early treatment is the key to the prevention and treatment of this disease.
Complication
Congenital clavicular pseudoarticular complications Complications, clavicular fractures
The clinical symptoms of this disease are few, and generally do not have functional effects on patients. Only a small number of patients have limited abduction of the shoulder joint and weakened arm strength, so the disease rarely causes complications.
Symptom
Congenital clavicular pseudoarthrosis symptoms Common symptoms The pulsatile lumbosacral pulsation on the clavicle and the anterior oblique angle...
Congenital malformation of the clavicle is rare, and the clavicle pseudoarticular is more rare. The formation of the pseudoarticular joint is more common in the right clavicle. The shoulder peak is often displaced forward and downward due to the gravity of the upper limb. The sternum side clavicle is swollen. Some patients have shoulders. The peak side can be inflated, which may be related to the long-term activity of the upper limb to stimulate the end of the proliferation, the disease generally does not affect the function of the upper limbs, there is no pain at the pseudo-joint, generally unintentionally found in the conventional X-ray.
In early childhood, due to the upper limb gravity relationship, the lateral aspect of the clavicle is downwardly deflected, the shoulder joint is lowered, the mobility of the pseudo joint is increased, the surface skin is thinned and atrophied, the shoulder blade is prominent, and the shoulder joint is asymmetrical, but the shoulder joint activity is generally normal, only In a small number of patients, shoulder abduction is limited and arm strength is weakened. X-ray films show that the two fracture ends of the clavicle joint are enlarged and thickened.
Examine
Congenital clavicle pseudoarticular examination
At the time of birth, the central part of the clavicle can be found to be swollen and has no history of birth injury. As the child ages, there is a painless mass in the local area. The two ends of the clavicle can be licked and have different degrees of activity. There is no tenderness, and the clavicle is located on the sternum. In the inner and the front of the other end, in early childhood, due to the gravity relationship of the upper limbs, the lateral side of the clavicle is downwardly deflected, the shoulder joint is lowered, the activity of the pseudo joint is increased, the surface skin is thinned and atrophied, the edge of the shoulder blade is protruding, the shoulder joint is asymmetrical, but the shoulder joint The activity was generally normal. Only a small number of patients had limited abduction of the shoulder joint and weakened arm strength. The X-ray film showed that the two fracture ends of the clavicle joint were enlarged and thickened.
Diagnosis
Diagnosis and diagnosis of congenital clavicular pseudoarthrosis
The disease should be differentiated from the birth-induced clavicular fracture. The latter has a history of birth injury, local tenderness, pseudo-paralysis of the affected limb, X-ray film can be seen in the formation of osteophytes, and the child should be associated with acquired clavicle. Pseudo-articular phase identification, history of trauma, the two ends of the fracture can be distinguished from it, and the clavicular head dysplasia has some or all of the clavicle, but there is no pseudo-articular mass, but there are other parts of the body. Such as pelvis, bone dysplasia of the limbs and so on is not difficult to identify.
