Nasal Analysis Flashcards
(20 cards)
Standard views for preop rhinoplasty
Frontal
Three-quarters
Lateral
Base
Frontal View
Nasal length
Nasal deviation from the midline
Tip-defining points/light reflexes (5-10 mm apart)
Tip shape/contour
Brow-tip aesthetic line
"Gull in flight" configuration
Lateral crural positioning ("Parentheses deformity)
Length of upper lipLateral View
Nasal length Dorsal hump Radix position Nasofrontal angle Tip rotation Tip projection Nasolabial angle Ala/columellar relationship Angle of divergence (double-break) Columellar show (2-4 mm) Chin/malar projection
Base view
Columella/lobule relationship Angle of divergence Shape of nasal tip Shape of nostrils Position of caudal septum Width of ala
Brow-tip aesthetic line
Gently curved line from the medial eyebrow along the nasal dorsum to the IPSI light reflex
In a symmetric nose, should be hour-glass
“Gull in flight” configuration
Silhouette from columella being slightly inferior to the alar rims
Frankfort horizontal
Imaginary line from top of tragus to malar eminence
What are the 4 aesthetic angles determined in the lateral view?
Nasofrontal angle
Nasofacial angle
Nasolabial angle
Nasomental angle
Nasofrontal angle
Intersection of line connecting glabella and nasion and line tangent to nasal dorsum
Ideal is 115-130 deg.
Nasolabial angle
Intersection of line tangent to columella and line from subnasale to upper vermillion border
Men: 90-95 deg
Women: 95-110 deg
Caudally rotated nose is often assoc w/ more acute angle (vs cephalic, obtuse)
Nasofacial angle
Intersection of line tangent to nasal dorsum with line from glabella to soft tissue pogonion
Ideal: 36-40 deg
Nasomental angle
Intersection of line from tip-defining point to soft tissue pogonion and a line tangent to nasal dorsum
Ideal: 120-132
Pogonion
anterior midpoint of the chin
Tip rotation
Determined by the angle of rotation of the dome off the Frankfort horizontal
Not equivalent to nasolabial angle, although associated
Methods used to quantify nasal projection
Goode’s
Crumley’s
Simon’s
Goode’s method to quantify nasal projection
A line from the alar-facial groove to the nasal tip should be 0.55-0.6 of the length of the nasal dorsum
Crumley’s method to quantify nasal projection
The nasal profile is a right triangle with vertices at the nasion, alar crease, and tip-defining point
Sides should have 3:4:5 ratio with resultant nasofacial angle of 36 deg
Simon’s method to quantify nasal projection
Distance from the subnasale to the upper vermilion border should equal the distance from the subnasale to the tip-defining point
Width of the ala should equal?
Intercanthal distance
Relationship of the columella and the infratip lobule is ideally?
2:1
