“…Complications such as excessive blood loss, ischaemic changes, nasal bleeding, maxillary sinusitis, osteomyelitis, non union of bone, condylar sag [1][2][3] can occur. However, mostly, these complications are avoided with careful systematic treatment planning and careful execution of the surgical procedure, while giving due respect to underlying philosophy of orthognathic surgery.The incidence of nonunions is reported to be (0.33 to 0.8%) in published data.…”