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Intraosseous anastomosis in the maxillary sinus
L F Rodella1, M Labanca, R Boninsegna
1Department of Biomedical Sciences and Biotechnologies, Division of Human Anatomy, University of Brescia, Brescia, Italy. rodella@med.unibs.it
Minerva Stomatologica
|July 1, 2010
Summary
Understanding maxillary artery anatomy is crucial for sinus-lift surgery to prevent bleeding complications. This study details intraosseous vessel location and distribution, aiding surgeons in avoiding vascular damage during procedures.
Area of Science:
- Anatomy
- Oral Surgery
- Vascular Anatomy
Background:
- Sinus-lift surgery carries a 20% risk of bleeding complications due to accidental intraosseous vessel damage.
- Accurate anatomical knowledge of maxillary vascularization is essential for surgical safety.
Purpose of the Study:
- To provide an anatomical overview of maxillary sinus vascularization via dissection.
- To analyze the distribution, localization, and distance from the alveolar ridge of intraosseous maxillary artery branches relevant to sinus lift.
Main Methods:
- Anatomical dissection of 56 maxillary bone windows in 28 cadavers.
- Bone windows were created between molars (24) or premolars (32), bilaterally.
Main Results:
- Intraosseous arteries were identified in 66% (37/56) of maxillae.
- Average artery height from the alveolar crest was 13±3.2 mm (distal) and 18±6.1 mm (mesial).
- Vessel patterns varied, with most running caudo-rostrally, but some presented as parallel or vertical arteries.
Conclusions:
- Detailed anatomical understanding of maxillary sinus vascularization is vital for oral surgeons to minimize bleeding risks.
- Radiological visualization of sinus anatomy and minimally invasive techniques like piezo-surgery may further reduce complications.
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