What is a septal extension graft or diced cartilage graft — and what are the risks?
Surgeon assesses nasal anatomy and selects appropriate cartilage source (septal, ear, or rib)
Patient receives full informed discussion of graft technique, risks, and realistic outcomes
Surgeon harvests and prepares graft material with appropriate technique for the chosen source
Graft placed and secured precisely; structural support and aesthetic goals both addressed
Post-operative monitoring, follow-up imaging or review, and clear aftercare instructions provided
If a surgeon skipped the informed discussion, chose an unsuitable graft source, or failed to monitor the outcome, that gap in care may be worth examining carefully.
Understanding cartilage grafts in rhinoplasty: what they are and why surgeons use them
Rhinoplasty — surgery to reshape the nose — often requires more than simply removing or repositioning tissue. Many patients need structural support added to the nose, not just taken away. Surgeons achieve this by harvesting small pieces of cartilage from elsewhere in the body and placing them precisely inside the nose. These pieces are called grafts.
Cartilage is the firm but flexible tissue that gives the nose, ears, and ribs their shape. Unlike bone, cartilage does not have a blood supply running through it. This makes it ideal for grafting — the body is less likely to reject it, and it can survive in a new location by absorbing nutrients from surrounding tissue.
Why grafts are needed
Surgeons use grafts for several reasons. A patient may have lost structural support from a previous rhinoplasty. The nasal tip may need repositioning and holding in place. The bridge of the nose may need building up. Or the septum — the wall of cartilage dividing the two nostrils — may have been weakened and need reinforcement.
The three main cartilage sources are the septum (inside the nose), the ear (specifically the conchal bowl, the curved hollow at the centre of the ear), and the rib (costal cartilage harvested from the chest wall). Each source has different properties, different harvesting risks, and different appropriate uses. For more general information about rhinoplasty and nasal surgery, Healthdirect Australia provides a useful starting point.
Septal cartilage: Flat, straight, and easy to carve — the preferred first choice for most grafts. Limited in quantity, especially in revision surgery where it may already have been used or removed.
Ear cartilage (conchal): Naturally curved, softer than septal cartilage. Well suited to tip grafts and smaller structural needs. Harvesting leaves a small scar behind the ear.
Rib cartilage (costal): The largest available source. Used when septal and ear cartilage are insufficient — common in tertiary (third or later) revisions. Carries the highest harvesting risk, including pneumothorax (a collapsed lung) in rare cases.
What is a septal extension graft?
A septal extension graft is a piece of cartilage — usually taken from the septum itself — that a surgeon attaches to the existing septum to extend it further downward or forward. Think of it as adding a new section to the end of a wall. This extended platform then supports the nasal tip and controls its position, projection, and rotation.
Surgeons use septal extension grafts when a patient’s nasal tip droops, when the tip needs to be projected further forward, or when the tip lacks definition. The technique requires precise placement and secure fixation. A graft that shifts even slightly can change the tip position significantly and may require revision surgery to correct.
What is a diced cartilage graft?
A diced cartilage graft involves cutting cartilage into very small pieces — typically one millimetre or smaller — and then placing those pieces as a soft, mouldable mass rather than a single rigid block. Surgeons often wrap the diced cartilage in a thin layer of fascia (a membrane harvested from the scalp or temple area) to hold the pieces together. This technique goes by the name DCF — diced cartilage in fascia.
Diced cartilage grafts work well for building up the dorsum — the bridge of the nose — because the soft mass conforms to the underlying shape and avoids the sharp edges that a solid block of cartilage can sometimes produce under thin skin. The technique is popular in revision rhinoplasty where the bridge needs augmentation but the skin is already thin and scarred from previous surgery.
When things start to go wrong: warning signs after cartilage graft surgery
Some discomfort, swelling, and bruising after rhinoplasty is entirely normal. Swelling in particular can persist for twelve months or longer, especially around the nasal tip. Patients often cannot assess their final result until well after the first year. This makes it genuinely difficult to distinguish between normal healing and a problem that needs attention.
Warning signs that should prompt review by your surgeon:
• Visible asymmetry in the nasal tip that worsens rather than improves after six months
• A palpable hard ridge or lump along the bridge that was not present immediately after surgery
• Skin thinning or redness over the bridge, which may indicate cartilage pressing through
• Breathing difficulty that develops or worsens after surgery — not just in the first weeks
• Nasal tip that shifts position over time, suggesting graft movement or failure of fixation
• Ear pain, numbness, or visible deformity at the donor site after conchal cartilage harvest
• Chest pain, shortness of breath, or a persistent cough after rib cartilage harvest — seek emergency care immediately
Warping is a specific risk with rib cartilage. Rib cartilage has internal stresses that cause it to curve or bend over time after harvesting. An experienced surgeon takes steps to minimise this — including carving from the centre of the rib and balancing the graft — but warping can still occur. A nose that looks straight immediately after surgery may develop a curve months later as the graft settles.
Resorption is another risk. The body can gradually absorb cartilage grafts, particularly diced cartilage. A bridge that looks well augmented at six months may appear lower at two years. Significant resorption may require further surgery to rebuild what was lost.
A common pattern — where care can break down
Most complications from cartilage graft surgery fall into recognisable patterns. Understanding these patterns helps patients make sense of what happened to them.
Choosing the wrong graft source for the clinical situation. A surgeon who uses ear cartilage where rib cartilage was clearly needed — because the patient had no remaining septal cartilage after two previous surgeries — may produce a result that fails structurally. Ear cartilage is softer and less rigid. Using it to provide major structural support in a heavily revised nose often leads to collapse or distortion over time.
Inadequate fixation of the septal extension graft. A septal extension graft that the surgeon does not secure firmly enough will shift. Even a small shift changes the tip position. Patients often describe their tip moving to one side or drooping back to its original position within months of surgery. Proper fixation requires suturing the graft at multiple points and sometimes using spreader grafts alongside it for stability.
Placing diced cartilage without adequate fascial wrapping. Diced cartilage placed without a fascial envelope tends to migrate — the tiny pieces spread out under the skin and produce an irregular, lumpy surface. This is particularly visible in patients with thin skin. Some surgeons attempt to use diced cartilage without fascia to save time or because they lack the skill to harvest fascia cleanly. The results can be difficult to correct.
Failure to warn about rib cartilage warping. Patients choosing rib cartilage grafts deserve a clear explanation that warping is a known risk, that it can occur even with careful technique, and that it may require revision. A surgeon who presents rib cartilage as a straightforward solution without discussing this risk has not given the patient the information they needed to make an informed decision.
Harvesting too much septal cartilage. The septum needs a structural L-shaped strut of cartilage left in place to support the nose. A surgeon who removes too much cartilage — chasing a larger graft — can weaken this strut and cause the nose to collapse over time. This is called a saddle nose deformity. Correcting it typically requires rib cartilage and is among the most complex revision procedures available.
The Australian Commission on Safety and Quality in Health Care sets out standards for surgical care and informed consent that apply to all surgical procedures in Australia, including cosmetic surgery.
Mild asymmetry that improves over 12–18 months of healing
Some firmness along the bridge that softens with time
Minor breathing changes in the first weeks post-operatively
Small scar behind the ear after conchal harvest, fading over time
Gradual settling of tip position within the planned range
Tip shifting significantly from its immediate post-operative position
Visible lumps or ridges along the bridge that worsen over time
Skin breakdown or redness over a graft site
Breathing that deteriorates progressively after the first month
Structural collapse of the nasal bridge or tip
Why this matters legally
Every surgeon who operates on a patient in Australia owes that patient a duty of care — a legal obligation to provide treatment that meets the standard a competent surgeon in the same field would provide. This duty applies to cosmetic surgeons and plastic surgeons performing rhinoplasty just as it applies to any other medical specialist.
Not every poor outcome from cartilage graft surgery amounts to a legal wrong. Surgery carries inherent risks, and some complications occur even when a surgeon does everything correctly. The legal question is whether the surgeon’s decisions and actions fell below the standard a reasonable, competent surgeon would have met — and whether that shortfall caused harm the patient would not otherwise have suffered.
Informed consent is a separate but related issue. A surgeon who performs a technically adequate operation but fails to explain the risks of rib cartilage warping, or who does not tell the patient that their septal cartilage supply was already depleted from previous surgery, may have failed in their duty even if the surgical technique itself was sound. Patients have a right to understand what is being done to their body and why. For more on how the law treats these situations, Reframe Legal — Medical Negligence provides a plain-English overview.
Rib cartilage warping that occurred despite the surgeon following accepted carving and balancing technique — a known risk that was disclosed
Saddle nose collapse caused by a surgeon removing too much septal cartilage, leaving insufficient structural support — a preventable technical error
This is a general educational framework only. Each case is assessed on its individual facts.
When cartilage graft complications may amount to medical negligence
Medical negligence — in plain terms, a failure to provide the standard of care a competent practitioner would have provided — can arise in cartilage graft surgery in several specific ways.
If a surgeon used ear cartilage to provide major structural support in a nose that had already undergone two previous surgeries, and the structure subsequently collapsed, a question arises about whether rib cartilage should have been chosen instead. A competent surgeon assesses the available cartilage supply before operating and selects the source appropriate to the structural demands of the case.
If a surgeon placed diced cartilage without fascial wrapping and the patient developed visible lumps and migration of graft material, the question is whether that technique met accepted practice. Many experienced rhinoplasty surgeons regard fascial wrapping as essential for diced cartilage placed on the dorsum.
If a surgeon harvested rib cartilage and the patient developed a pneumothorax — a collapsed lung — the question is whether the surgeon had the training and experience to perform that harvest safely, and whether the patient was warned this risk existed.
The NSW Civil Liability Act 2002 governs personal injury claims in New South Wales, including claims arising from surgical procedures. Under that Act, a court assesses whether the surgeon’s conduct was consistent with what a peer professional body of competent surgeons would regard as acceptable. Expert evidence from other rhinoplasty surgeons is central to this assessment.
When harm becomes long-term or permanent
Cartilage graft complications are not always correctable. Some patients reach a point where further revision surgery carries more risk than benefit — because the available cartilage supply is exhausted, because the skin is too thin and scarred to tolerate another procedure, or because the structural damage is too extensive.
Physical consequences
Permanent breathing impairment is among the most serious long-term outcomes. A nose that collapses structurally — whether from over-harvesting of the septum or from graft failure — can obstruct the airway in ways that affect sleep, exercise, and daily comfort. Correcting this may require rib cartilage reconstruction, a major procedure with its own risks.
Visible disfigurement — a crooked tip, a lumpy bridge, a saddle nose deformity — can persist for years or permanently. Patients who cannot access further revision surgery, or who choose not to undergo it, live with these changes to their appearance indefinitely.
Psychological and financial consequences
Many patients who experience significant rhinoplasty complications describe lasting psychological harm. Anxiety, depression, and social withdrawal are common. Some patients avoid situations where their appearance is visible to others. These psychological consequences are real and documentable, and courts in NSW recognise them as compensable harm.
The financial impact compounds over time. Revision rhinoplasty in Australia typically costs between $15,000 and $40,000 or more, depending on complexity. Patients who need rib cartilage reconstruction face the higher end of that range. Those who require multiple revisions face cumulative costs that can exceed $100,000 across several years.
What compensation can cover in cartilage graft negligence cases
NSW law allows patients who establish negligence to seek compensation for the harm they suffered. Compensation can cover pain and suffering, lost income if the patient could not work, the cost of corrective surgery, ongoing treatment costs, and the cost of care or assistance the patient needed as a result of the harm.
| Level of harm | Typical compensation range |
|---|---|
| Moderate injury | $50,000–$150,000 |
| Serious injury | $150,000–$500,000 |
| Severe / life-changing injury | $500,000+ |
Each case is assessed on its own facts. These figures are general ranges only. A patient with permanent breathing impairment and documented psychological harm will generally attract a higher award than a patient with a correctable cosmetic outcome.
Time limits apply in NSW. Patients generally have three years from the date they became aware of the harm — or from the date of the procedure — to bring a claim. Waiting too long can extinguish the right to seek compensation entirely.
Bringing it together — do the pieces fit?
If you have read this far, you may be trying to work out whether what happened to you was within the range of acceptable outcomes or something more concerning. These questions may help you think it through.
Understanding how these cases are assessed in NSW is a useful next step. Reframe Legal — How Medical Negligence Claims Work in NSW explains the process in plain language, from initial assessment through to resolution.
You don’t need certainty to understand your position
Many patients who experienced a poor outcome from rhinoplasty spend months — sometimes years — wondering whether what happened to them was normal or not. Surgeons sometimes tell patients that their result is within the expected range. Other surgeons, reviewing the same patient, reach a different conclusion. This uncertainty is real, and it is not a sign that you are wrong to ask questions.
Legal clarity does not require you to be certain that something went wrong. It requires an examination of the facts — what the surgeon planned, what they did, what they told you, and what happened as a result. A lawyer with experience in surgical negligence cases can assess those facts against the standard a competent rhinoplasty surgeon would have met.
Informed consent is often the clearest thread to pull. If you were not told about a specific risk that then materialised, that gap in information may be legally significant regardless of whether the surgical technique itself was sound. Reframe Legal — Informed Consent and Medical Negligence explains how consent failures are assessed under NSW law.
If you have concerns about a surgeon’s conduct or registration, AHPRA — Australian Health Practitioner Regulation Agency handles complaints about registered health practitioners in Australia and can investigate whether a practitioner’s conduct met professional standards.
About the lawyer behind this article
Dr Rosemary Listing is a NSW lawyer with a PhD focused on medical negligence. Her academic and clinical background gives her an unusually detailed understanding of surgical procedures — including the technical demands of rhinoplasty and cartilage graft surgery.
Dr Listing has worked with patients who experienced structural failure, breathing impairment, and visible disfigurement following rhinoplasty procedures involving septal extension grafts, diced cartilage techniques, and rib cartilage reconstruction. She understands that these cases are technically complex and that patients often struggle to find surgeons willing to review another surgeon’s work honestly.
Her experience in this area has shown her that harm in rhinoplasty cases frequently arises not from the complexity of the procedure itself, but from decisions made before the patient entered the operating room — about graft selection, about what the patient was told, and about whether the surgeon had the experience the case required.
Patients who approach Dr Listing are typically not looking to blame anyone. They want to understand what happened, whether it should have happened, and what their options are. Her role is to assess the facts carefully and give an honest answer to those questions.
Dr Listing practises in New South Wales and focuses exclusively on medical negligence matters. Her work centres on whether the standard of care owed to a patient was met — and what the consequences are when it was not.
This article is general legal information only. It does not constitute legal advice. Each person’s circumstances are different. The law discussed applies to New South Wales, Australia. Time limits apply to legal claims.