Abstract
Pollicization of the index finger can be considered the gold standard technique for the treatment of congenital thumb aplasia. The aim of this study was to review the described incisions for pollicization and to create an anatomical framework enabling the study and comparison of these incisions. A systematic review was performed to collect descriptions of incision sets. An anatomical model was created from the two upper limbs of the same cadaver. Thumb aplasia was modeled on both hands of this cadaver by severing the thumbs; an index finger pollicization was performed on one of the two hands. Comparative analysis of scar positions, first web size, and neothumb aspect of each incision set was conducted using a surgical glove modeling the skin. The glove was fitted onto the aplastic model to draw the incisions and then onto the pollicized hand to adjust the resulting flaps after cutting. Twelve articles, two textbooks, and one DVD were included in the review, either containing an original description of incisions, or describing an incision pattern with figures and references to the initial author. A total of five different incision sets, described by Buck-Gramcko, Blauth, Foucher, Ezaki, and Malek, were identified and compared using the anatomical model. This work summarizes five original incisions described for index pollicization in thumb aplasia and presents a standardized and reliable model to study and compare these different sets. The model can be used for educational purposes, either to teach or to optimize an incision set.
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