Surgery, Rhinoplasty

If Rib Cartilage Is Used for Rhinoplasty, Why Is Silicone Still Needed to Augment the Nasal Bridge?

This is one of the questions patients ask most often at our clinic. Understanding the reasoning behind each approach can help you choose a rhinoplasty technique that suits your needs. The short answer is that using rib cartilage (costal cartilage) does not necessarily mean avoiding silicone in every case. It depends on where the surgeon uses the cartilage and the extent of the patient’s structural nasal problems. This article explains the different approaches and compares their advantages and limitations.

Septal Cartilage vs. Rib Cartilage: What Is the Difference?

Before explaining why silicone may also be used, it helps to understand the sources of cartilage available for rhinoplasty.

Septal Cartilage: Often the First Choice

For primary structural rhinoplasty, surgeons often consider septal cartilage first because of its useful characteristics:

  • Suitable strength—not excessively soft or rigid.

  • It is already within the nasal surgical area, so no additional external donor-site incision is needed.

  • Harvesting it is generally less involved and takes less time than harvesting rib cartilage.

Rib Cartilage: When Might It Be Needed?

Rib cartilage may be needed when there is insufficient suitable septal cartilage, including in the following situations:

  • A congenitally short nose with a small amount of septal cartilage.

  • Previous septoplasty.

  • Septal damage caused by an accident, previous surgery, or infection.

  • Cases requiring extensive reconstruction of the nasal tip, bridge, and areas beneath the nasal alae.

The main advantages of rib cartilage are its ample quantity and strength. It can support reconstruction in several areas during the same operation, including silicone-free augmentation of both the nasal tip and bridge.

Rib Cartilage Rhinoplasty: Why Is Silicone Sometimes Still Used for the Nasal Bridge?

Why Is Silicone Sometimes Used for the Bridge in Rib Cartilage Rhinoplasty?

This question relates to an approach called Open Hybrid Rhinoplasty, also described as a silicone-free nasal tip. Rib cartilage is used for the tip, while silicone—or another material such as Gore-Tex or acellular dermal matrix—is used to augment the bridge.

4 Reasons Surgeons May Choose Hybrid Rib Cartilage Rhinoplasty

  1. Less Surgical Complexity

Using rib cartilage for the bridge as well as the tip requires additional expertise and operating time. Some surgeons choose a hybrid approach because shaping and placing a silicone bridge implant can be more straightforward and predictable in suitable cases. The choice should also account for the different risks associated with each material.

  1. Concerns About Warping and Resorption at the Bridge

Potential concerns when using rib cartilage for the nasal bridge include:

  • Warping: A solid rib cartilage graft placed on the bridge (a monobloc graft) may bend over time, making the nose appear crooked.

  • Resorption: Partial loss of graft volume may occur, including with crushed cartilage, potentially causing a lower or uneven bridge.

  • A silicone implant maintains its manufactured shape and does not undergo cartilage warping or biological resorption, although it has other implant-related risks.

  1. A Smaller Chest Incision

In the clinic’s described technique, harvesting rib cartilage only for the tip may require a chest incision of approximately 1.1–1.5 cm. If cartilage is also needed for the bridge, the incision may be approximately 1.5–2.5 cm. Using silicone for the bridge may therefore reduce the amount of cartilage required and the donor-site incision length. Actual incision size varies.

  1. Lower Cost and Shorter Operating Time

The hybrid approach is described here as taking approximately 3–4 hours in some cases. It generally requires less operating time than using rib cartilage for both the tip and bridge, which may also reduce the cost.

Rib Cartilage Rhinoplasty: Why Is Silicone Sometimes Still Used for the Nasal Bridge?

Who May Be Suitable for Hybrid Rhinoplasty: Rib Cartilage at the Tip and Silicone at the Bridge?

Suitability depends on the individual case. This approach may be considered for patients who:

  • Are undergoing their first rhinoplasty and have reasonably intact nasal structures.

  • Have no previous history of silicone-related complications.

  • Accept the potential long-term limitations of a silicone bridge implant, including a palpable implant, visible edges, skin thinning, and possible extrusion.

  • Prefer a shorter operation and a more affordable treatment option.

When Might Silicone-Free Rhinoplasty for Both the Tip and Bridge Be More Suitable?

Using rib cartilage for both areas without silicone may be more suitable in the following situations:

  • Previous silicone-related problems, such as infection, extrusion, clearly visible implant edges, or an unnatural contour.

  • Thin skin over the nasal bridge that makes another silicone implant unsuitable.

  • A strong preference for a natural appearance and feel.

  • Concerns about long-term silicone-related complications.

  • Revision cases with extensive structural damage.

What Is Push-up Dorsal Preservation Rhinoplasty?

For patients seeking a higher bridge with a natural appearance, the clinic describes an approach called Push-up Dorsal Preservation Rhinoplasty. This technique raises the native bony nasal bridge from beneath rather than placing a cartilage graft on top of it, as in a conventional dorsal onlay graft.

Potential Advantages of Push-up Dorsal Preservation with Rib Cartilage

  • The bridge may feel more natural because there is no solid cartilage onlay graft on top of it.

  • It aims to reduce long-term bridge contour irregularities.

  • It preserves the native dorsal surface to create a natural-looking higher bridge.

  • It avoids warping of a solid rib cartilage onlay at the bridge because that type of graft is not placed there.

Limitations to Consider

  • A sufficiently long piece of rib cartilage is required.

  • The technique is highly complex and requires experience in both structural and preservation rhinoplasty.

  • Operating time and cost are generally greater than with the hybrid approach.

Rib Cartilage Rhinoplasty: Why Is Silicone Sometimes Still Used for the Nasal Bridge?

Comparison of 3 Rib Cartilage Rhinoplasty Approaches

The following outlines the clinic’s comparison of three main approaches. Results, incision sizes, and operating times vary between patients.

Technique 1: Rib Cartilage for Both the Tip and Bridge

  • Natural appearance: Can achieve a highly natural result.

  • Complexity: High.

  • Operating time: Longer.

  • Chest incision: Approximately 1.5–2.5 cm.

  • Warping risk: Present; techniques can help reduce it.

  • May suit: Revision cases or patients who wish to avoid silicone entirely.

Technique 2: Hybrid Rhinoplasty—Rib Cartilage Tip and Silicone Bridge

  • Natural appearance: Moderate to high, depending on the individual result.

  • Complexity: Moderate.

  • Operating time: Approximately 4–5 hours in this comparison; actual time varies.

  • Chest incision: Approximately 1.1–1.5 cm.

  • Warping risk: No cartilage warping at the bridge because silicone is used there.

  • May suit: Primary rhinoplasty in patients with suitable, intact structures.

Technique 3: Push-up Dorsal Preservation

  • Natural appearance: Designed to preserve a highly natural bridge appearance and feel.

  • Complexity: Very high.

  • Operating time: Generally the longest of these approaches.

  • Chest incision: Approximately 1.5–2.5 cm or longer.

  • Warping risk: Avoids solid dorsal onlay graft warping; other cartilage-related risks still require assessment.

  • May suit: Patients seeking a natural bridge appearance and feel whose anatomy is suitable.

Given these advantages, is using silicone for the bridge better than using rib cartilage?

The answer depends on the patient’s nasal problems and long-term concerns. For primary rhinoplasty without major structural problems, a hybrid approach may be suitable if the patient accepts the potential disadvantages of a silicone bridge implant. These include a palpable implant, visible edges, skin thinning, pressure-related changes to the underlying bone, and the possibility of infection or extrusion, including inside the nasal cavity. In such cases, rib cartilage can be used to create a silicone-free tip while silicone augments the bridge.

However, patients with previous silicone-related infection, extrusion, visible edges, an unnatural bridge contour, or thin bridge skin may not be suitable for this hybrid approach. For those who prefer natural tissue or are concerned about long-term implant problems, silicone-free reconstruction of both the tip and bridge using rib cartilage may be more appropriate.

Patients considering rib cartilage for the bridge may be concerned about warping or resorption. Surgical techniques have developed to help reduce these risks. Others worry that a solid cartilage graft on the bridge may become palpable or look like a narrow, unnatural ridge once swelling subsides. Push-up Dorsal Preservation Rhinoplasty is another approach described by the clinic for suitable patients.

This approach raises the native bony bridge from beneath, rather than placing a rib cartilage dorsal onlay graft on top. It aims to preserve a natural bridge appearance and feel and reduce surface irregularities. However, it requires a sufficiently long cartilage graft, complex surgical planning, and a surgeon experienced in both structural and preservation rhinoplasty. The longer operation also generally involves a higher cost.

If you are considering rib cartilage rhinoplasty and are unsure whether to choose a silicone bridge, a structural rib cartilage dorsal onlay graft, or Push-up Dorsal Preservation Rhinoplasty, you can arrange a consultation to discuss the advantages and limitations of each approach.

Frequently Asked Questions About Rib Cartilage Rhinoplasty

Q: Does Rib Cartilage Rhinoplasty Cost More Than Conventional Silicone Rhinoplasty?

A: Generally, yes. It involves a more complex procedure, longer operating time, and specialized surgical skills. In the clinic’s comparison, costs generally increase in this order: hybrid rhinoplasty < silicone-free tip and bridge reconstruction < Push-up Dorsal Preservation. Individual quotations depend on the treatment plan.

Q: Can Rib Cartilage Warp After Rhinoplasty?

A: Warping is a recognized risk, particularly with solid rib cartilage dorsal onlay grafts. Various preparation and surgical techniques can help reduce this risk. Push-up Dorsal Preservation avoids placing that type of solid graft on top of the bridge, but it does not eliminate all cartilage-related or surgical risks.

Q: Will the Chest Scar Be Noticeable?

A: In the technique described here, the incision is approximately 1.1–2.5 cm, depending on the procedure, and may be placed in the fold beneath the breast. Careful wound closure can help minimize its appearance. Scars often fade over 6–12 months, although incision placement, size, and healing vary.

Q: Which Is Better: Hybrid Rhinoplasty or Silicone-Free Reconstruction of Both the Tip and Bridge?

A: There is no single best approach for everyone. The decision depends on nasal anatomy, previous surgery, expectations, and acceptance of long-term risks. After a detailed examination, the surgeon can recommend an appropriate technique.

Q: Who May Be Suitable for Push-up Dorsal Preservation Rhinoplasty?

A: Patients seeking a higher bridge with a natural appearance and feel, and whose bony nasal structures are suitable for the technique. The surgeon will assess suitability during the preoperative consultation.

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นพ.สุวิน สมเงิน
Article Author
นพ.สุวิน สมเงิน
Dr. Gorn
Thai Board of Facial Plastic and Reconstructive Surgery; Thai Board of Otolaryngology, Head and Neck Surgery
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นพ.วิษณุ จุลมุสิ
Article Author
นพ.วิษณุ จุลมุสิ
Dr. Nu
Thai Board of Facial Plastic and Reconstructive Surgery; Thai Board of Otolaryngology, Head and Neck Surgery
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