Protruding-mouth rhinoplasty and ACR — why the columella·alar relationship decides the nasolabial angle and columellar lowering

01

What relationship should the columella and alae have?

We take as the reference a relationship where the columella sits about 1–2mm below the alae forming a seagull shape. The columella is the central pillar at the front of the nose, and the alae flank it on both sides.

Generally the ideal line is a form where the columella sits about 1–2mm below the alae, giving the tip line a triangular shape. Seen from the front, the columella sits slightly low forming a mild seagull shape.

When this relationship is off, the impression differs.

If the columella sits too low relative to the alae, the nose can look long; if only the columella is low while the nostrils stay the same, nostril exposure can look severe. Also, when the alae droop regardless of the columella, the columella and alae must be aligned parallel. So rather than looking at one part alone, the nose's form and the nasolabial angle must be seen together as a whole.

02

How is a recessed columella corrected?

When the columella is recessed inward, the nose looks spread and the philtrum looks long. In that case, columellar lowering to bring the columella out a bit is needed.

In the actual case of a patient whose columella was recessed and alae drooped downward, the nostrils showed a lot pre-surgery and the ACR relationship was off. In such cases, the ACR is aligned through columellar lowering together with a process of slightly raising the alae. Then these changes occur:

• Nostril exposure decreases.
• The alae rise and settle into the ideal position.
• There's an effect of the philtrum looking somewhat shorter.

This is why the effect of a protruding mouth looking eased appears even with nose surgery alone. How the line formed by the columella and philtrum is designed can be seen further in the J-curl line guide.

Also, when the nose is wide like a bulbous nose, gathering only the tip cartilage isn't enough — the columella part also needs to be gathered slightly downward. Only then can the bulbous-feel reduction effect be brought out more.

03

Is a protruding columella approached in reverse?

Yes — there are cases where the columella protrudes too much instead. Then the surgical method differs.

If the columella comes out too far, the distance between columella and alae widens and the nostrils show a lot, feeling less refined. In that case, conversely, the columella is placed inward so the alae and columella become parallel. Then nostril exposure evens out and the side line and overall shape are tidied.

In other words, even for the same "columellar correction," the direction is opposite — a recessed nose is brought out, a protruding one is placed in. Including the case where an inward-curled columella was brought forward to set the nasolabial angle, actual before-and-after looks can be checked in before & after photos.

04

Summary — look at the relationship, not the columella alone

Columellar lowering isn't a surgery decided by looking at the columella alone. Whether it forms a 1–2mm seagull shape with the alae, how nostril exposure and philtrum length look, and what the nasolabial angle is must be checked together to set the direction — recessed columella brought out, protruding columella placed in. And when this relationship aligns, a change where the protruding-mouth impression looks eased can be expected from nose surgery alone.

If you're curious what state your nose's ACR is in, you can get it checked in a 1:1 video consultation.