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What is monobloc advancement?
Can a monobloc frontofacial advancement be performed in one step?
What is monobloc advancement with or without rigid external distraction?
Is monobloc frontofacial advancement associated with a facial bipartition?
Nov 24, 2019 · The monobloc advancement is a procedure that can make craniofacial dysostosis patients (Crouzon, Pfeiffer) look normal (FIGS 3 and 4). PATIENT HISTORY AND PHYSICAL FINDINGS Patients with a retrusive forehead and midface, proptosis, and class 3 malocclusion (common in craniofacial dysostosis patients such as Crouzon or Apert) benefit from the ...
Monobloc frontofacial advancement In some patients, it is possible to advance the forehead and midface in one step, simultaneously improving the form and appearance of the forehead, eyes and midface. In these cases, the monobloc frontofacial advancement is performed instead of a combination of fronto-orbital and Le Fort III procedures.
Monobloc advancement is an operation to reshape the front portion of the skull and face including the upper jaw to correct an abnormal head shape. Reshaping and moving the front portion forwards means that the eyes sit deeper in the skull so are less likely to be damaged.
- Indications
- Advantages and Disadvantages
- Alternative Treatment
- Timing
- Preoperative Planning
A monobloc advancement procedure is used in craniofacial dysostosis patients to correct (1) midfacial and forehead retrusive deformities, (2) upper airway obstruction (such as obstructive sleep apnea or tracheostomy dependence), (3) exorbitism (such as ocular keratitis, corneal ulcers, globe herniation, or blindness), and (4) intracranial hypertens...
The monobloc advancement procedure is advantageous because it avoids a second major procedure. In just one operation, both the forehead and midface deformities are corrected and functional improvement may be seen. The main disadvantage to a monobloc advancement is the risk of serious complications (e.g., meningitis, CSF leak, or complete frontal bo...
There are treatment alternatives for craniofacial dysostosis patients with forehead retrusion and significant midface hypoplasia. Correction may involve either (1) staged procedures with fronto-orbital advancement followed by Le Fort III advancement or (2) a monobloc (one-unit) advancement. Sometimes the initial fronto-orbital advancement procedure...
Patients with craniofacial dysostosis syndromes have cranial vault and midface deformities with common features and similar growth disturbances. Some surgical strategies, including timing and techniques, may thus be generalized for these syndromes. Optimal care, however, should be tailored to each individual diagnosis and each individual patient. T...
In preparing for a monobloc advancement, a CT with 3-dimensional reconstruction may be used as a “road map.” In addition, we used 3-dimensional photographic imaging for preoperative, postoperative, and follow-up comparison of facial volumetric changes (Figure 9.1
Jan 28, 2021 · Monobloc advancement is a safe procedure that yields meaningful morphologic and functional outcomes in patients with syndromic craniosynostosis. However, these osteotomies create an anterior cranial base defect with a connection between the nasal cavity and cranium.
- Fatima Qamar, Kristen S. Whalen, Bahar Abbassi, Luis F. Rodriguez, George I. Jallo, S. Alex Rottgers
- 2021
Monobloc advancement remains a major operation with a relatively high complication rate. A monobloc osteotomy includes both a transcranial and a transfacial procedure and thus creates a potential connection between the nasopharynx and intracranial cavity.
We describe the monobloc frontofacial advancement technique with the use of internal distractors, which we use in patients with primary syndromic craniosynostosis (Apert, Crouzon, and Pfeiffer) who have major facial hypoplasia and secondary respiratory repercussions.
