Intraoperative images of dissection for a tumor of the proximal phalanx. The surgeon performs a dissection between the bone and the flexor apparatus (A). Once the dissection has been completed and the two tissues have been separated (B), the surgeon could complete the dissection on the side opposite to the original surgical approach (C) and finally complete the resection by performing a disarticulation of the metacarpophalangeal joint (D).