Running Out of Graft Material: What Happens When the Septum Is Already Used

Why septal cartilage is often already spent by the time of a revision, the order in which remaining sources are assessed, and why rib cartilage is a decision rather than a default choice.

Most first rhinoplasty in Korea draws its structural cartilage from the septum, because it is close at hand, plentiful enough for a single operation, and leaves no visible scar. That works well the first time. It is the reason a second operation is a different problem from a materials standpoint — a meaningful share of the septum is very often already gone, taken during the first surgery and shaped into the grafts that are still sitting in the nose today.

This page is about what happens next: which sources are still available, how much each one realistically provides, and why the surgeon's decision about material is made in a specific order rather than by default. Choosing among the three autologous options in general is covered in Septal Cartilage, Rib Cartilage, Dermis; using dermis specifically to reinforce thinned skin is a separate subject in Autologous Dermis in Revision; and rib cartilage as a procedure in its own right, including what harvesting it involves, is covered in the clinic's general guide to rib cartilage rhinoplasty.

Why the septum is often already spent by a revision

The septum is the wall of cartilage that runs down the middle of the nose, and in a first rhinoplasty it is the preferred source of structural graft for a simple reason: it is already inside the surgical field, it does not require a second incision anywhere else on the body, and for most first operations there is enough of it to build a dorsal strut, a columellar strut, and whatever smaller grafts the tip needs.

That is also why it is frequently reduced by the time a patient returns for a second operation. It was not wasted — it was used for exactly the purpose it exists for — but a septum that gave up most of its usable cartilage the first time around does not regenerate it. Some patients have more remaining than others, depending on how much the first surgery required and how much of the septum was structurally sound to begin with. A minority of patients arrive with a septum that was already limited before any surgery took place, for reasons unrelated to a previous operation.

None of this is discovered by asking the patient how much was used. It is established by examination and by 3D CT, which is one of the reasons imaging is done before a revision plan is finalised rather than after. What no records from a first surgery abroad or elsewhere means for this assessment specifically is covered in No Records From Your First Surgery.

The order in which remaining sources are checked

The assessment runs in a fixed sequence, and the sequence itself is the point — it is not a menu the patient chooses from, but a series of questions the surgeon answers about what is actually there.

First, the septum itself. Even a septum that has given up most of its cartilage for a first operation sometimes retains a usable remnant, particularly along the back edge or in areas the first surgeon left untouched because the graft designs did not require them. This remnant is checked before anything else, because if it is enough, it is the simplest and least invasive answer.

Second, ear cartilage. The conchal bowl of the ear provides a curved, moderately firm cartilage that is useful for certain grafts, particularly ones that do not need to be perfectly straight. It involves a separate, well-concealed incision behind or within the ear, and the amount available is naturally limited by the size of the ear itself.

Third, rib cartilage. This is considered when septal remnant and ear cartilage together do not cover what the plan requires — typically because the reconstruction needs a long, straight, load-bearing strut, or because the total volume needed across several grafts is more than the first two sources can realistically provide.

The order exists because each step down the list involves more surgery, a new incision site, and — in the case of rib — a longer operation and a different recovery. The surgeon does not skip ahead to rib because it yields more; the assessment starts with what is least invasive and moves down the list only as far as the plan actually requires.

What quantity each source realistically yields

Exact yield is not a number that can be given in advance for any of the three. It depends on the individual's anatomy and, for the first two sources, on how much a previous operation already used. This is one of the findings that is confirmed during surgery rather than promised beforehand — the plan going in is a strong likelihood based on CT and examination, and the plan is adjusted on the table if what is found differs from what was expected.

Why rib cartilage is a decision, not a default

Rib is sometimes assumed to be the obvious second-operation answer, since it is well known as a plentiful, strong, and reliably straight source of structural cartilage. It is used often at revision for exactly those reasons. But treating it as automatic skips over a real cost that a septal remnant or ear cartilage does not carry.

Harvesting rib cartilage means a separate incision on the chest — at Edition, this is kept to roughly 2cm — and a longer total operation, since the harvest is done in addition to the nasal reconstruction itself. It also means a second surgical site to recover from, with its own discomfort in the days afterward, distinct from anything happening at the nose. None of this makes rib a poor choice; it is the correct choice in a large share of revisions, precisely because a demanding reconstruction genuinely needs a strut that only rib can reliably provide. The point is that the decision is made because the plan requires it, not reached for as a first resort.

Suture removal after a graft procedure follows the material used: ear cartilage and autologous rib grafts are typically ready for suture removal at around 14 days, reflecting the additional healing time a second surgical site requires compared with work confined to the nose alone.

What is weighed before rib is chosen

Three questions are asked in sequence before rib enters the plan. Is the remaining septum and ear cartilage genuinely insufficient for what this reconstruction needs, once the shape and support requirements are mapped out? Does the reconstruction specifically need a long, straight strut that a curved or smaller graft cannot substitute for? And is the patient's overall surgical plan for that day able to accommodate the additional harvest and the longer total time under anaesthesia? A "yes" to the first two, checked against the third, is what moves rib from an option to the plan.

How the plan changes when material sets the ceiling

Available material is one of several findings — alongside tissue condition, skin thickness, and scarring from the previous operation — that place a ceiling on what a given revision can achieve in a single sitting. When that ceiling is lower than the patient's initial hope, three things typically follow.

The design is built around what is structurally achievable first. A shape that requires more support than the available material can provide is not usually built to look right and left thin underneath; the height and definition are set at a level the material on hand can actually hold.

Rib is brought into the conversation earlier rather than later. If septal and ear sources are visibly insufficient before surgery even begins — which CT often makes clear — that is discussed at consultation rather than discovered on the table, so the patient understands in advance that a chest incision is part of the plan.

In rarer cases, the reconstruction is staged. Where even rib cartilage would be stretched thin by everything the nose needs at once, doing the most structurally important work first and addressing refinement in a later, smaller procedure can be the more honest recommendation than attempting everything in one operation on material that is already limited.

When the shortage is discovered — before surgery or during it

Patients sometimes ask whether a material shortage is something the surgeon can always see coming. The honest answer is that it is usually anticipated but not always confirmed until the operation itself. A 3D CT scan shows bone and, to a meaningful degree, cartilage structure, and combined with a careful examination of the external nose and a conversation about what the first operation involved, it gives a strong working picture of what is likely to remain in the septum.

What imaging cannot always resolve is the exact quality of what is left — whether a remaining piece of septal cartilage is thick enough and structurally sound enough to serve as a strut, or whether it is present but too thin or too fragmented to rely on. That distinction is sometimes only clear once the tissue is open. This is why the pre-surgical conversation at Edition is framed around a likely plan and a fallback, rather than a single fixed promise: if the septum turns out to offer less than expected, the surgeon moves to ear cartilage; if that in turn is not enough for what the reconstruction requires, rib is brought in, and the patient has already been told beforehand that this branch of the plan exists and why.

How this differs from a first surgery's material question

In a first rhinoplasty, the material question is mostly about which of several viable options best suits the shape being built — a decision covered in full in Septal Cartilage, Rib Cartilage, Dermis. At revision, the question is narrower and more constrained: given what is actually left, what can be built, and does the plan need to go further down the list of sources than it would have if the septum were untouched. The comparison matters because a patient who read about material choice before a first operation and expects the same open set of options at a second one is often surprised to learn that one of those options — the septum — is no longer fully on the table. Setting that expectation early, at consultation and not on the day of surgery, is part of why the assessment described on this page happens before any shape is discussed.

What this does not mean

Running low on septal cartilage does not mean a nose cannot be reconstructed. Ear cartilage and rib cartilage exist specifically because the septum is not the only source of autologous material, and between the three, the great majority of revisions have a workable path.

It also does not mean every second surgery needs rib. Many revisions are addressed fully with septal remnant and ear cartilage, particularly where the correction needed is more about refinement than about rebuilding a major structural strut. Which of the three materials suits a given nose is examined individually rather than assumed from the fact that it is a second operation.

And it does not mean the first surgeon did anything wrong by using the septum the first time. Septal cartilage is the standard first choice for good reason, and using it does not create the shortage on its own — it is the combination of that first use with whatever additional correction the second operation now requires.

What "enough" is measured against

Quantity on its own does not answer the question. A volume of cartilage that is ample for one reconstruction is short for another, so the assessment runs in two directions at once: what remains, and what this particular nose is being asked to build.

The demands are not interchangeable. A straight, load-bearing strut down the dorsum asks for length and rigidity in a single piece, and a supply that exists only as small fragments cannot meet it however much of it there is in total. Tip support asks for something different again — pieces that can be shaped and layered, where strength matters less than the ability to hold a position. Reinforcement of thinned coverage is a third demand and is not answered by cartilage at all.

So the sentence "there is not enough left" is always shorthand. What it means is that the remaining material cannot meet a specific structural requirement of the plan under discussion. Change the plan and the same material may be sufficient; hold the plan and a different source has to be found.

This is why the material question is answered after the reconstruction has been specified rather than before. Asking how much cartilage a patient has left, in the abstract, produces a number that cannot be acted on until there is something to measure it against.

When a rib harvest is declined

Patients are entitled to decline it, and some do. It is worth setting out what the plan looks like from there, because the conversation is more productive when the alternatives are known rather than guessed at.

Three directions are available, and which of them applies depends on what the reconstruction was going to use the material for.

The target can be revised downward. Where the shortfall is in the dorsum, a more modest projection asks less of the framework and may be achievable within what remains. This is a real option and not a consolation — a smaller change that holds is a better outcome than a larger one that the material cannot support.

The work can be staged. Where part of the reconstruction can be completed with what is available and part cannot, doing the achievable part and reassessing afterwards is sometimes preferable to forcing the whole plan into one operation.

An implant can carry the part of the structure that autologous material was going to carry. Where the dorsum is the shortfall and the tip support can be built from remaining tissue, a shaped implant is a legitimate answer rather than a fallback, and the reasoning behind that choice is set out in the page on custom-carved silicone.

What is not available is proceeding with the original plan and less material than it requires. That is the one path that reliably produces the problem the whole assessment exists to prevent.

About the author

Dae-hee Han, MD — Board-Certified Plastic Surgeon (specialist certificate No. 2045, issued 3 March 2014; medical licence 00394, issued 26 February 2009). Master’s degree, Ajou University School of Medicine. Training at the Craniofacial Center, Chang Gung Memorial Hospital, Taiwan (2013), and the IFAAS Mini Fellowship, University of Florida, USA (2016). Three rhinoplasty papers published in SCIE-indexed international journals. More than 4,500 nose surgeries — Dr. Han’s career total from 2017 to 2025, counted from medical records. Eighteen years in practice since medical licensure in 2009; thirteen years as a board-certified plastic surgeon. He carries out consultation, surgery and follow-up personally; fee guidance is given by the clinic’s consultation manager.

Last reviewed: 2026-08-15

Clinic information

Edition Plastic Surgery Clinic & Dermatology
6F, OPUS 407, 407 Gangnam-daero, Seocho-gu, Seoul 06614, Republic of Korea
One minute on foot from Gangnam Station Exit 10
Tel +82-2-591-0100 · editionprs@gmail.com
Consultation hours: Monday to Friday 10:00–19:00 · Saturday 10:00–17:00 · closed Sundays and public holidays

Disclaimer

Individual results may vary. Bleeding, infection, swelling, asymmetry, and scarring can occur. Please decide after a full consultation with a board-certified specialist.

This page is general medical information. It is not a diagnosis, and it does not promise a particular outcome. Surgical fees are given after an in-person consultation.