What they actually did

This is is from this webpage: http://www.maxfac.com/facial/jaw.html

a) Mandibular Sagittal Split Osteotomy
The back of the lower jaw is split bilaterally under general anaesthetic in the region of the wisdom teeth, which are generally removed in a separate operation at least 6 months prior to corrective surgery. The procedure is carried out in about 1.5 hours and permits the lower jaw to be advanced or pushed back with adequate bone contact for healing. The bone is fixed in its new position by screws which are inserted through tiny external skin incisions which are located at the angle of the jaw. These heal with minimal external scarring.

Mandibular Sagittal Split Osteotomy: The sensory nerves to the lower lip are coloured blue.Screw fixation is demonstrated on one side. Screws are placed above and below the nerve

d) Upper Jaw - Maxilla
Maxillary osteotomy surgery may be advised when an abnormally positioned jaw is giving rise to cosmetic problems. The jaw can be moved upwards / downwards / forwards and rarely backwards. The critical aspect of where to place the maxilla in the anteroposterior plane is determined by computer analysis of skull x-rays and computer simulation using digital photography (photomorphanalysis™). This illustrates the movement and its permits effect on other structures to be calculated e.g. the nose. The position of the maxilla in the vertical plane is determined by the amount of upper incisor tooth visible below the upper lip at rest and when smiling. Rotation of the maxilla may be required on occasion to centralise the position of the front teeth. This has a temporary effect on the central position of the nose, which initially looks “off centre” – this usually corrects itself over a 3 month period. Surgery to the maxilla is carried out at three levels named after a French Surgeon René Le Fort.

Le Fort I Osteotomy Sensory nerves to the upper lip and cheeks are coloured blue

The Le Fort I osteotomy involves separating the maxilla and the palate from the skull above the roots of the upper teeth through an incision inside the upper lip. The maxilla is fixed in its new position with titanium screws and plates. Surgery time is around three hours. The operation is frequently carried out with the mandibular Sagittal split osteotomy when it is termed a Bimaxillary Osteotomy. Bimaxillary osteotomies take around five hours to complete and may be carried out in conjunction with chin surgery and liposuction/liposculpture. Blood transfusion is required. On occasions bone grafting is required in the Le Fort I osteotomy to ensure bone healing and union across the bone cuts. The graft is frequently harvested from the hip. Bone graft material may be harvested from the chin or lower jaw in bimaxillary cases – leaving the hip intact. Cosmetic improvement is startling for those individuals requiring these procedures, and with proper planning it is unusual for patients not to be delighted with outcome.