Depth Transitions of the Frontal Branch of the Facial Nerve: Implications in SMAS rhytidectomy.

Background: Anatomy of the frontal branch of the facial nerve relative to the zygomatic arch and the superficial musculoaponeurotic system (SMAS) has been well described. The variability centers on the location where the frontal branch traverses from a deeper to more superficial plane in the SMAS. The goal of this study is to examine the depth transition of the frontal branch of the facial nerve relative to the zygomatic arch with hopes of pinpointing a caution zone for dissection to avoid nerve injury.

Validity of the Rule of Threes and Anatomical Relationships in the Thoracic Spine.

Context: The location of the more superficial thoracic spinous processes is used to help osteopathic physicians locate the deeper and more difficult-to-palpate thoracic transverse processes. In 1979, Mitchell et al proposed the thoracic rule of threes to describe the relationship of the spinous processes to the transverse processes in the thoracic spine. This rule is currently taught at osteopathic medical schools.

Effect of phenylephrine 1.0%-ketorolac 0.3% injection on tamsulosin-associated intraoperative floppy-iris syndrome.

Purpose: To determine the effect of phenylephrine 1.0%-ketorolac 0.3% injection (Omidria) on different components of intraoperative floppy-iris syndrome (IFIS).