The shape of the flap thus made is shown in [Fig. 403].
Fig. 403.—Ollier Method. First Step.
The flap is dissected up and made to contain the periosteum as far as the juncture of the frontal nasal bones.
The skin over the right nasal bone is now dissected up, without, however, including the periosteum. The left nasal bone, still adherent to the skin, is removed with the chisel, beginning at the median line, then at its frontal attachment, and lastly along its union with the superior maxillary bone.
On the right side what remained of the cartilaginous structure was divided so as to include it in the flap.
This gave a large triangular flap, periosteo-cutaneous above, osteo-cutaneous below that, and ending in a chondro-cutaneous border, attached to the face by a double pedicle, as shown in [Fig. 404].
To give further support to this flap at the median line, Ollier divided the septum with the scissors in such a way as to form an antero-posterior cartilaginous flap attached by its lower base.
The flap was brought downward in the same manner as in the method of Neumann and sutured into position, the parts involved assuming the position shown in [Fig. 405], in which the lateral nasal surface is left uncovered to show the space occasioned by the removal of the nasal bone, and in dotted line the position that bone now occupies.