congenital annular girdle
Introduction
Introduction to congenital annular band The congenital annular band, also known as the congenital constriction band, is also known as the constriction band syndrome or the Streeter malformation. basic knowledge The proportion of illness: 0.002% Susceptible people: young children Mode of infection: non-infectious Complications: ischemic necrosis
Cause
Congenital annular bandage
(1) Causes of the disease
The cause of this disease is unknown.
(two) pathogenesis
Some scholars believe that the congenital band is caused by amniotic strips, and some scholars believe that it is caused by defects in the protoplast development of the germ, while Patterson proves that the occurrence of the band has a similar mechanism to the formation of cleft lip, which is caused by the development of mesoderm. As a result, the mild band only affects the skin, the subcutaneous tissue, and the heavy can invade the fascia layer to reach the muscles and even the bones. The deeper band can cause the limbs to venous or lymphatic reflux, causing swelling at the distal end of the limb. Produce intrauterine autonomous amputation.
Prevention
Congenital annular band prevention
There is no effective preventive measure for this disease. Early detection and early diagnosis are the key to the prevention and treatment of this disease.
Complication
Congenital annular banding complications Complications ischemic necrosis
It can be complicated by infection and wet necrosis. In severe cases, intrauterine amputation can be produced.
Symptom
Congenital annular banding symptoms Common symptoms Secondary infection tendon rupture
The ring groove often causes the furrow to occur in any part of the limbs. The fingers, toes, forearms and calves are the most common, occasionally found in the trunk, shallow in the skin, subcutaneous tissue, does not affect limb function, deep causes muscles, nerves The narrow blood vessels and bones make the distal reflex of the limbs restricted, and the swelling is large, easy to secondary infection, wet necrosis, can also cause finger, toe, tendon, bone fracture, only the narrow skin is connected with the proximal end.
Examine
Congenital annular band inspection
X-ray examination showed no positive findings.
Diagnosis
Congenital annular band diagnosis
According to the clinical manifestations, general diagnosis is not difficult.
Pay attention to the identification of scar contracture caused by trauma.
