[Classification and subclassification of funnel and pigeon chest].

The Willital's clinical classification of funnel- and pigeon-chest deformities can be subclassified by special measurements of the chest. This easy technique enables to differentiate between: Sternocranial, sternocaudal, infrasternal, symmetric and asymmetric marginal and parasternal deformities. This further classification includes deformities of the vertebral column and deviatory development as well. The exact analysis of the abnormal chest in three different planes can be performed by external chest wall measurements that have been developed in our hospital.