Related Experiment Video
Updated: Jul 10, 2026
Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
[Anatomy study of the lacrimal bone in dacryocystorhinostomy]
Haibo Ye1, Yunhai Feng, Shankai Yin
1Department of Otolaryngology, the Sixth People's Hospital of Shanghai Jiaotong University, Shanghai, 200233, China. yehaibo88@sohu.com
Objective:
To explore the significance of the lacrimal bone at the lateral nasal wall in endoscopic dacryocystorhinostomy.
Method:
The position, dimension and thickness of the exposed lacrimal bone at the lateral nasal wall in 10 cadaveric heads(male 5, female 5) were examined and the anatomy of uncinate process, the maxillary line and M point were studied, too.
Result:
The lacrimal bone at the lateral nasal wall is always situated immediately anterior to the uncinate process. The average length and width of the lacrimal bone was 9.23 mm and 3.63 mm, respectively. The lacrimal bone was very thin with an average thickness of 0.06 mm.
Conclusion:
The study indicates that the lacrimal bone is so thin that a bony rongeur is usually sufficient to nibble it away. The medial wall of the sac is then removed without the use of drill or chisel with less operative trauma. The uncinate process, the maxillary line and M point are reliable landmarks in endoscopic dacryocystorhinostomy.
More Related Videos
07:43Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits
Published on: January 8, 2020
08:04A Rabbit Model of Aqueous-Deficient Dry Eye Disease Induced by Concanavalin A Injection into the Lacrimal Glands: Application to Drug Efficacy Studies
Published on: January 24, 2020
Related Concept Videos
01:27Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
01:22Sutures of the Skull
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
01:17Accessory Structures of the Eye