KIRNERS DEFORMITY

A 14 years old boy with Kirner's deformity is demonstrated. He has the typical radial and volar deviation of the terminal phalanges of the 5 th finger. Nature and inheritance of the disease are discussed. We ass ume inborn ossification distarbances. Most authors recommend to avoid any therapy. But we feel that nowadays it is possible to use plaster s plints in young children or to do a corrective operation in older ones with good success.