[Blauth classification of thumb hypoplasia: thought and proposition of modification].

Using the conclusions of the previous article concerning the therapeutic indications for handling hypoplastic thumb, we suggest an amendment to the current Blauth classification. This alteration is based on the management of this congenital anomaly, whereas the Blauth classification describes the morphological characteristics of the malformation. It appears for us more usable in practice by its easiness to be memorized.