Wenlin index of pectus excavatum

Pectus excavatum is a common thoracic deformity. There are many clinical indicators to evaluate its severity, among which Haller index is the most commonly used one. However, this index has many defects. In order to eliminate these defects, we designed a new index, namely Wenlin index. This index is the normalized depression depth, which is an ideal value because it can directly reflect the degree of depression. We believe that if this value is used together with Haller index, the severity of pectus excavatum can be evaluated more comprehensively.