Septum, Ear, or Rib: How Surgeons Choose Cartilage Grafts in Rhinoplasty

Ask a rhinoplasty surgeon what has changed most in the last twenty years and many will point to the same thing: structure. Modern rhinoplasty is less about removing tissue and more about reinforcing it, and reinforcement requires material. In most cases that material is the patient's own cartilage, harvested from one of three sites: the nasal septum, the ear, or a rib. Each source has a distinct mechanical personality, and understanding those differences explains a great deal about how surgical plans are made.

Why grafts are needed at all. The nose is a cantilevered structure. The lower two thirds are held up by paired cartilages that resist gravity, scar contracture, and the inward pull of breathing. When a surgeon reshapes those cartilages, or when a previous surgery has weakened them, the nose can lose the stiffness it needs to hold its shape and keep the airway open. Grafts restore that stiffness. Common examples include spreader grafts along the bridge to support the internal nasal valve, columellar struts or septal extension grafts to stabilize the tip, and alar rim or lateral crural grafts to prevent sidewall collapse.

Septal cartilage: the default choice. Septal cartilage sits inside the nose, so harvesting it adds no new incision and no separate donor site to heal. Mechanically, it is close to ideal: flat, relatively straight, and stiff enough to act as a beam without being brittle. Because it comes from the same anatomic region it is being used to support, its rigidity matches the surrounding framework. Surgeons must leave an L-shaped strut of at least roughly one centimeter along the top and front of the septum to keep the nose supported, which limits the total yield. In primary rhinoplasty that yield is usually sufficient. In revision cases, the septum has often already been harvested or is deviated and fractured, which pushes the plan toward other sources.

Ear cartilage: soft, curved, and best for contour. Conchal cartilage from the bowl of the ear is harvested through an incision hidden in front of or behind the ear, and the ear's shape is generally unchanged afterward because the concha is not what defines the visible outline. The material itself is thinner, more elastic, and naturally curved. That curvature is a liability for long straight grafts like spreaders, where memory in the cartilage can slowly bend the reconstruction. But the same properties make ear cartilage excellent for jobs that reward flexibility: alar rim grafts, tip shield grafts, and camouflage layers that smooth irregularities. Surgeons sometimes stack or suture two curved pieces back to back so the curves cancel out, producing a straighter composite when septum is unavailable.

Rib cartilage: abundant and strong, with a known catch. Costal cartilage, typically taken from the sixth or seventh rib through a small chest incision, offers far more volume than the other two sites and the highest structural strength. It is the workhorse of major revision rhinoplasty, saddle nose reconstruction, and cases where the septum and ears have already been used. The catch is warping. Rib cartilage has internal stresses, and when it is carved those stresses release unevenly, causing the graft to bend over hours to weeks. Surgeons manage this with specific techniques: carving symmetrically from the central core rather than the edges, cutting the rib obliquely to balance stresses, letting carved pieces sit in saline during surgery to observe early bending, and sometimes threading a fine internal support through the graft. Two other considerations are age and recovery. Rib cartilage calcifies over time, so in patients past roughly their fifties it can be harder to carve, and the chest donor site adds soreness for one to two weeks, though modern harvest through incisions of a few centimeters has made this far more tolerable than older descriptions suggest.

What about donor rib from a tissue bank? Irradiated or otherwise processed cadaveric rib cartilage avoids the chest incision entirely. Published series show it performs reasonably well, but because the tissue is not living, long-term resorption rates appear somewhat higher than with the patient's own rib, and surgeons weigh that against the appeal of skipping a donor site. It is a legitimate option, most often discussed in revision cases and with patients who want to avoid chest harvest.

What patients should take from this. The donor site question is not cosmetic trivia. It affects operative time, recovery, and the long-term stability of the result. Reasonable questions for a consultation include: do you expect my septum to provide enough cartilage, what is your plan if it does not, and if rib is likely, how do you manage warping. A surgeon comfortable with all three sources can match the material to the job rather than forcing one material to do everything, and that flexibility is one of the quieter markers of experience in structural rhinoplasty.

Related reading: Septum, Ear, or Rib: How Surgeons Choose Cartilage for Rhinoplasty Grafts and Septum, Ear, or Rib: How Surgeons Choose Cartilage Grafts in Rhinoplasty.