Rib fusion

Thoracic insufficiency syndrome (TIS) refers to the inability of the thorax to support normal breathing and lung growth. TIS is a collective term for a type of syndrome. Most of these diseases are congenital diseases, and there are multiple system deformities at the same time. The most common are congenital scoliosis and congenital scoliosis. Patients with this type of congenital spinal deformity usually also have ribs and ribs Absence of isoform development of the thorax. TIS can be divided into four types: type Ⅰ is lack of ribs and scoliosis, type Ⅱ is rib fusion and scoliosis, type Ⅲa is full small thorax, type Ⅲb is narrow thorax.