Orbital Floor Reconstruction Ppt

Nonvascularized bone grafts to the orbital floor in combination with temporalis or free rectus abdominus flap reconstruction results in the more consistent preservation of functional vision and a low incidence of. Reconstruction of orbital floor using titanium mesh. Exploration and reconstruction of left orbital floor blowout fracture with split calvarial bone graft.

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Orbital reconstruction is very difficult when the transition areas between the orbital floor and the medial wall is missing.

Orbital floor reconstruction ppt. It is estimated that about 10 of all facial fractures are isolated orbital wall fractures the majority of these being the orbital floor and that 30 40 of all. The reason for this is that the bony walls are comminuted and or bone fragments are missing. Blow out fracture 2. Left old orbital floor blowout fracture.

Three dimensional reconstruction of the orbital floor is the key procedure for a primary or secondary orbital deformity. Clinical recommendations for repair of isolated orbital floor fractures an evidence based analysis michael a burnstine md ophthalmology 2002 109 1207 1210. Ppt orbital floor fractures powerpoint presentation free ppt orbital floor fractures powerpoint presentation free ppt orbital floor fractures powerpoint presentation free. This can be accomplished using various.

A blowout fracture of the orbital floor is defined as a fracture of the orbital floor in which the inferior orbital rim is intact. Therefore one is reconstructing missing bone rather than reducing bone fragments. Impure blow out fracture 4. John doe md anesthesia.

Under these circumstances the surgeon may reconstruct the defect using two separate plates one for the medial wall and one for the orbital floor. The majority of cases require reconstruction of the orbital floor to support the globe position and restore the shape of the orbit. After the unaffected side is mirrored onto the affected side using the. The other option is to use the preformed orbital plate.

Theoretically the mechanical load of the orbital floor is approximately 0 0005 n mm2 30 g orbital content onto 600 mm2 of orbital floor area as indicated by several cadaver investigations. Postoperative coronal and sagittal ct scan showing repositioning of the soft tissue in orbital floor and a good adaptation of the titanium mesh. The reconstruction of total maxillectomy defects requires the reconstruction of the orbital floor and soft tissue coverage. Orbital floor reconstruction ppt.

Pure blow out fracture 3. Whats people lookup in this blog. Newer materials consisting of titanium mesh coated with porous polyethylene are available and aim to capture the strengths of both materials. Classification orbital wall fractures 1.

Left old orbital floor blowout fracture. Orbital dystopia the bony orbital cavities do not lie in the same horizontal plane horizontal dystopia or the same vertical plane vertical dystopia. Etiology fractures of the orbital floor are common. About 2 liters of crystalloids.