Liliequist's membrane is an important surgical landmark in various neurosurgical operations. The structure of the Liliequist’s membrane, as reported in the literature, varies considerably. Most of the anatomic studies of Liliequest’s membrane have been reported following removal of both the frontal lobes. This report presents the image of Liliequist’s membrane as viewed endoscopically from a re...

statement of problem: recognition and determination of facial and dental midline is important in dentistry. currently, there are no verifiable guidelines that direct the choice of specific anatomic landmarks to determine the midline of the face or mouth. objectives: the purpose of this study was to determine which of facial anatomic landmarks is closest to the midline of the face as well as tha...

BACKGROUND AND PURPOSE Identification of the central region is of special importance to avoid neurologic deficits in brain surgery. Brain surface reformatted images (Mercator view) map the frontoparietal brain surface in 1 view and provide a synopsis of the most important landmarks. In this view, the U-shaped subcentral gyrus appears as a distinctive anatomic structure enclosing the Sylvian end...

The purpose of this study was to quantify the consistency and precision of locating three-dimensional (3D) anatomic landmarks. The hypotheses tested are that these landmarks have characteristic and variable error patterns associated with their type and location. The consistency and precision of nine orthodontists identifying 32 landmarks of 19 patients were quantified. The cone beam computed to...

BACKGROUND Ultrasound guidance of central venous catheter (CVC) insertion improves success rates and reduces complications and is recommended by several professional and regulatory organizations. METHODS This is a prospective observational study using data extracted from the Central Line Emergency Access Registry database, a multicenter online registry of CVC insertions from medical centers t...

This study compared two Computer Assisted Surgery (CAS) methods in 212 total knee arthroplasties to evaluate the differences between anatomic landmark axes in determining rotational position of the femoral component. Overall, there were large variations between CAS defined component orientation using an optimized gap-balancing technique and component orientation using anatomic reference axes (r...

There was no postoperative infection noted in any case nor has there been any keloid scar formation noted on follow-up exams. Patient and surgeon satisfaction with incision placement has been good. Unless an axillary or anterior chest approach is used, there will be a resultant scar in the neck. Terris, et al have pointed out that the prevalence of thyroid disease is higher in women than in men...

The cystic vein, a portion of biliary anatomy whose insignificance in open gallbladder surgery led to its being relegated to mythology, has been rediscovered by the magnified view of laparoscopic surgery. Its presence is an important anatomic feature that helps distinguish between cystic duct and common hepatic duct, thus diminishing the risk of inadvertent bile duct injury during laparoscopic ...