Among those considering rhinoplasty, some may be interested in "donated cartilage (donor cartilage)."
Particularly when prioritizing revision surgery or advanced nose augmentation, you may hear explanations such as "no need to remove rib cartilage," "no additional scars," and "gentler on the body."
In reality, there are significant differences between donated cartilage and autologous rib cartilage (your own rib cartilage).
In rhinoplasty surgery, autologous rib cartilage (your own rib cartilage) or donated cartilage provided by others is used as a foundation to support the height and shape of the nasal tip. Which you choose is an important decision that influences surgical success and long-term results. At our clinic, we recommend autologous rib cartilage as the first choice, particularly for important structural parts of the nose (Dorsal augmentationand others), because long-term stability can be expected. This article explains the differences and indications between the two based on representative clinical research.
What is Donated Cartilage (Allogeneic Rib Cartilage)?
Allograft cartilage (medically referred to as allogeneic rib cartilage) is a medical material sourced from donor rib cartilage that undergoes rigorous screening and processing—including sterilization by irradiation, cryopreservation, and decellularization—to eliminate infection risk. Particularly in many commercially available irradiated products, while this processing reduces the likelihood of immune rejection, cartilage cells are reported to be non-viable. As a result, unlike autologous cartilage which undergoes complete "incorporation," allograft cartilage may be partially absorbed over time as it is gradually replaced by the patient's own tissue. The cell viability, degree of revascularization, subsequent absorption rates, and hardness vary depending on which processing method the product uses, as reported in the literature.
Autologous rib cartilage vs. allograft cartilage | Comparison of risks and characteristics
Both autologous rib cartilage and allograft cartilage (allogeneic rib cartilage) are used to increase nasal height or reinforce structural support; however, their properties differ significantly. Understanding the following comparison points is essential when considering safety and long-term outcomes. Based on multiple clinical research reports, major risks and characteristics are summarized below.
Why our clinic does not recommend allograft cartilage as the "foundation" of the nose
The primary reason our clinic does not recommend allograft cartilage for nasal structural support—such as septal extension grafts that support nasal tip height and projection—is uncertainty regarding long-term shape retention. Multiple studies suggest that allograft cartilage produces variable results depending on processing method and product type, with higher rates of absorption and complications compared to autologous cartilage (Vila et al., 2020). For example, in areas requiring structural support, the risk of height reduction over years or complications such as infection and deformity is reported to be higher than with autologous cartilage. To avoid future instability of a load-bearing foundation, our clinic prioritizes autologous tissue as the first choice, supported by numerous clinical reports demonstrating long-term stability. However, exceptional cases do exist—such as when rib cartilage cannot be harvested due to patient health conditions, or when other cartilage sources have been depleted from previous surgery. In such situations, we explain all available options based on medical evidence, including the risks and benefits of allograft cartilage and comparison with alternatives (such as synthetic materials), and support you in selecting the optimal method you are comfortable with.
【By case】Which cartilage is appropriate?
Depending on your nasal condition and goals, the recommended cartilage source differs. Representative cases are as follows:
- Case 1: First-time surgery, and you want a high, well-projected nasal tip→ Septal extension grafting is essential to provide strong structural support; therefore, autologous cartilage with low absorption risk and long-term stability is indicatedAutologous rib cartilageis the first choice.
- Case 2: Revision surgery where cartilage from the ears or nose is already absent, and supporting tissue is insufficient→ In this case as well, securing sufficient volume and strength for reconstructionAutologous rib cartilageis the standard approach. Allograft cartilage may have insufficient strength or carry a higher risk of infection.
- Case 3: When you want to raise the nasal bridge (dorsum) slightly without changing the height of the tip→ Since this is an area with minimal structural load,allograft cartilagecan be a viable option. However, the risk of absorption must be considered. Auricular cartilage, fascia, synthetic materials, and other alternatives will also be evaluated.
- Case 4: When you do not want a chest scar but require a certain degree of height or reinforcement→ First, we will assess whether auricular cartilage or septal cartilage can address your needs. Only if these are insufficient and you have a strong personal preference will weallograft cartilagecarefully consider use after you fully understand the risks (absorption, infection, etc.).
Checklist of confirmation items to avoid regret
This is a specific list of questions to ask your physician during consultation. Whether you are satisfied with these answers is an important indicator for choosing a clinic.
- Why do you recommend that particular material (autologous/allograft)?(A specific reason based on your individual nasal condition)
- If allograft cartilage is to be used, from which manufacturer and what processing method (freezing, radiation, etc.) has been applied?
- Please tell me the reported incidence rates of possible complications (infection, absorption, deformity, etc.) and the treatment options if they occur.
- What is the clinic's policy (warranty system, costs, etc.) if revision surgery becomes necessary?
- Are there options other than rib cartilage (auricular cartilage, nasal septum cartilage, etc.) to fulfill my wishes? What are their merits and demerits?
You are required to weigh short-term burden (scarring and pain) against long-term stability and risks, and make decisions based on sufficient information.
If you have any concerns, consult with your doctor
Q1. Will donated cartilage be absorbed in the future?
The possibility of absorption is considered higher compared to autologous cartilage. However, the absorption rate varies significantly depending on the processing method of the donated cartilage used (irradiated, non-irradiated, etc.), the site of use (dorsum or tip), individual constitution, and follow-up period. Some studies report that a considerable amount was absorbed within several years (Vila et al., 2020), while other studies report long-term stability, and opinions currently differ. Therefore, especially for use in important structural sites of the nose, our clinic believes it is necessary to carefully consider the risk of future morphological changes.
Q2. Will the scar be noticeable if autologous rib cartilage is used?
Harvesting rib cartilage requires a chest incision, but the visibility of scarring varies among individuals. Depending on constitution (hypertrophic scarring or keloid tendency), incision location, and postoperative care, scarring may become noticeable. Therefore, during counseling, we will specifically explain the incision length, suturing technique, postoperative taping and scar care, and treatment options in case of visible scarring—along with risks and countermeasures.
Q3. Which lasts longer—donated cartilage or autologous rib cartilage?
In terms of long-term morphological maintenance, many research reports show that autologous rib cartilage, being autologous tissue, has lower absorption risk and higher stability (Kim et al., 2019). However, this mainly applies to cases requiring structural support. Depending on surgical history, nasal condition, and degree of desired change, donated cartilage may be a rational option. For example, if minor revision is needed and you wish to avoid autologous cartilage harvesting at all costs, it may be considered in consultation with your physician.
▶ Related article:Can bulbous nose (dango nose) in men be corrected? Rhinoplasty without failure and 5 key points
▶ Related article:Types and selection of men's rhinoplasty | Points for natural results
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Summary | Choose materials based on the "future," not "ease"
While donated cartilage offers short-term benefits of reduced burden on the body, autologous rib cartilage excels in long-term stability. The key to avoiding regret is to carefully determine which material suits your wishes and nasal condition—not simply because it is "easier," but with a long-term perspective on "future morphological changes"—in consultation with your physician.
References
- Vila, P. M., et al. (2020). Irradiated Homologous Costal Cartilage in Rhinoplasty: A Systematic Review.Aesthetic Surgery Journal, 40(1), 1-13. DOI: 10.1093/asj/sjz096
- Kim, H. S., et al. (2019). Complication Rates of Autologous Costal Cartilage in Rhinoplasty: A Systematic Review of the Literature.JAMA Facial Plastic Surgery, 21(4), 316-323. DOI: 10.1001/jamafacial.2019.0069
- Adams, W. P., et al. (2015). An Algorithmic Approach to the Use of Costal Cartilage in Rhinoplasty.Plastic and Reconstructive Surgery, 135(2), 379-392. DOI: 10.1097/PRS.0000000000000913
For rhinoplasty consultation, visit "Zetith Beauty Clinic"
At Zetith Beauty Clinic, during consultation, our physicians will carefully examine your wishes and nasal condition, and based on medical evidence, we will explain in detail the merits and demerits of options including autologous rib cartilage, donated cartilage, and other materials. As our basic policy, autologous rib cartilage is our first choice for structural nasal support. When using donated cartilage, we provide detailed explanation of the characteristics of the irradiated product adopted in-house, predicted absorption rate, and the antimicrobial protocol during and after surgery for infection prevention, and we proceed with treatment only after obtaining your consent. As supplementary aids to consultation, 3D simulation (※ results are not guaranteed) and CT scanning (※ additional fee required) for skeletal analysis are available. Postoperatively, follow-up examinations are scheduled at 1 month, 3 months, and 6 months. Should any complications be suspected, we have a 24-hour emergency response system in place, so please do not hesitate to consult with us about any concerns.
About the author of this article
Hiromitsu NakamuraPhysician
Zetith Beauty Clinic Ginza, Osaka, Fukuoka
With a track record of research presentations at domestic and international conferences, he is involved in technical instruction and education for Zetith Beauty Clinic overall. Specializing in precision rhinoplasty based on anatomical evidence, he pursues natural results tailored to each individual's skeletal structure and tissues.