Two planned osteotomies
are a ramus osteotomy extending just past the lingula and an anterior mandibular vertical osteotomy.
Different approaches of osteotomies
possess different risks of iatrogenic injury since the structures involved are different.
Complications and outcomes of pedicle subtraction osteotomies
for fixed sagittal imbalance.
In both sides, staggered osteotomies
for remodeling and anterior cranial symmetry were done (Figure 3).
Though the causes of new TMJ symptoms in patients without preoperative symptoms are not known, one of the hypotheses proffered is the mechanical overload exerted on both the condyle and disc during manual repositioning of the ascending ramus in centric relation and during osteosynthesis, which results in excessive compression of the disc-condyle complex towards the posterior slope of the fossa, or from excessive rotation or tilting of the condyle due to bony interference between the proximal and distal bone fragments in sagittal split osteotomies
, and/or from compression force elicited from osteosynthesis plates or screws.
Figure 16 shows the results of the four virtual osteotomies
performed by one participant of Group II.
In larger deformities, it has been suggested to combine osteotomy with the ligament reconstruction, as separately they would be related to a higher failure rate as well as to osteotomies
which do not restore the valgus.
Through a maxillary vestibular incision, the maxillary osteotomies
Widening of the alar base occurs following almost all maxillary osteotomies
, especially with impaction and/or advancement (6) or segmental advancement and widening (7).
Different rotational osteotomies
of the proximal femur have been described for deformities in the load-bearing portion of the femur head (6, 7, 12).
Mature malunions are treated by intra-articular osteotomies
or the salvage procedures.