Anatomical Study Of Frontal Muscle Flap

Purpose:Research the diameter、route、Course level of nervus supraorbitalisand supraorbital artery、 Temporal branches and the methods, effects,precautions of the use of suspension of frontal muscle flap to treatptosis, in order to verify the security of using one third of middle-brow asnotch. And by comparing the test to observe the different surgical clinicalefficacy and complications in the treatment of moderate to severe theptosis, providing the basis for more reasonable choice for clinicalsurgical.Materials and Methods:Anatomy and clean up20(40cases) specimens of unknownage.,including10male,10female, forehead defect. Exposure to the studyarea, and measure relevant parameter of the line feed of nervussupraorbitalis and supraorbital artery, and use the statistical software todeal with the data.Result:1the length of the eyebrows, eyebrows after strict trisection to near themidline as the starting point A, two aliquots point B, C, and point D is thedistance from the midline, respectively. Men and women were A at10.06±2.08mm and9.58±2.16mm, B of32.36±5.88mm and30.42±6.24mm, C of57.28±8.50mm and55.76±8.64mm, D of80.22± 12.72mm and76.46±11.36mm, the total length of the eyebrows is68.26±10.52mm and60.84±11.66mm.2. frontal muscle, the inside of the edge on the left side of the mean valueof65.78±0.85mm, the length of the inside of the right side of the edgelength of the average value was65.49±0.88mm, respectively, the lateralside of the edge length with a mean of70.48±0.95mm, outside of theright side of the edge length of the average value was70.55±0.94mm,the width of the front on the left side of the mean value of56.14±0.75mm, the width of the front right side of the mean value of55.93±0.74mm, the back end on the left side of the average width of61.09±0.82mm, the width of the back end on the right side with a mean of60.40±0.83mm, in part on the left side of the mean value of1.43±0.06mm,the thickness of the part thickness on the right side with a mean of1.46±0.06mm.3.Supraorbital nerve in the supraorbital foramen is not completely verticalline go up, but to a certain angle from the inside out running, deep surfaceof the trunk to go walk in the amount of myofascial subgaleal gap,orbitalthe nerve this dry supraorbital hole diameter of1.44±0.3mm, intomuscle points to the supraorbital foramen line a distance of40.3±9.0mmsupraorbital foramen vertical distance into the muscle points to33.7±8.5mm, to the supraorbital foramen entrance point of muscularhorizontaldistance of30.5±8.6mm, the dry and the tangent of the angle between the supraorbital foramen52.7±7.4degrees; the the supraorbital arterythis dry supraorbital nerve accompanied supraorbital hole.4.Supraorbital artery as a branch of the ophthalmic artery, supraorbitalforamen supraorbital nerve with its trunk tilt angle to the line out the top,through the amount of muscle and subgaleal after about the level of themidpoint of the foreheadsheath. Supraorbital artery at the level of themidpoint of the horizontal line of the superior orbital margin andforehead Online distance away from the midline were22.5±4.1mm and33.3±5.9mm.5.The lowest point and the highest point of the temporal branch of thefacial nerve to enter the amount of muscle point distance above thesupraorbital margin were7.6±1.5mm and26.4±3.0mm, and theirdistance from the midline were50.0±1.9mm and51.3±2.1mm.Conclusion:1. The eyebrow length we selected eyebrows strictlytrisection central part of the difference, the eyebrows slightly longerindividuals, the incision can be slightly biased point inside;2eyebrow few one-third portion of the nerve trunk into stripping theamount of muscle in the region is relatively safe.