Absorbable vs Non-Absorbable Sutures in Cosmetic Surgery: Complete UK Guide

Sutures play a critical role in cosmetic surgery, influencing wound healing, scar appearance, and overall patient outcomes. The choice between absorbable and non-absorbable sutures is not merely a technical preference—it reflects a balance between biological compatibility, aesthetic goals, and procedural requirements. This article provides a clear, evidence-based comparison of both suture types within the context of cosmetic procedures.

1. Overview of Suture Types

Absorbable Sutures

Absorbable sutures are designed to degrade naturally within the body over time through enzymatic breakdown or hydrolysis. Common materials include polyglycolic acid (PGA), polyglactin (Vicryl), polydioxanone (PDO), and catgut.

They are frequently used in:

• Subcutaneous tissue closure
• Deep dermal layers
• Procedures where suture removal is impractical

Non-Absorbable Sutures

Non-absorbable sutures are not broken down by the body and must either be removed or remain permanently in situ. Common materials include nylon, polypropylene (Prolene), silk, and polyester.

They are typically used in:

• Skin closure (epidermal layer)
• Procedures requiring prolonged tensile strength
• Situations demanding precise wound edge approximation

2. Key Differences

2.1 Degradation and Longevity

• Absorbable sutures lose tensile strength over time and are eventually resorbed. For example, Vicryl retains ~50% strength at 2–3 weeks and is fully absorbed in ~56–70 days.
• Non-absorbable sutures maintain strength indefinitely unless removed.

Clinical implication:
Absorbable sutures are advantageous for internal layers where long-term support is unnecessary, while non-absorbable sutures are preferred when sustained mechanical support is required.

2.2 Impact on Scarring and Aesthetic Outcome

• Absorbable sutures: Often placed beneath the skin, reducing surface marks and eliminating “track scars” associated with external sutures.
• Non-absorbable sutures: Provide superior epidermal alignment but may increase risk of visible suture marks if left too long.

Evidence-based note:
Studies in dermatologic surgery indicate that meticulous epidermal closure with fine non-absorbable sutures (e.g., nylon 6-0) can yield optimal cosmetic results when removed promptly (typically 5–7 days for facial wounds).

2.3 Infection Risk and Tissue Reaction

• Absorbable sutures: Some (e.g., catgut) can provoke greater inflammatory response due to natural origin. Synthetic absorbables (e.g., Vicryl) are more predictable and less reactive.
• Non-absorbable sutures: Generally inert (especially polypropylene), but external sutures may act as a nidus for infection if not managed properly.

Clinical implication:
Modern synthetic materials have reduced differences, but suture selection should still consider patient-specific healing responses.

2.4 Convenience and Patient Experience

• Absorbable sutures:
  • No need for removal
  • Reduced follow-up visits
  • Increased patient convenience
• Non-absorbable sutures:
  • Require removal (which may cause discomfort)
  • Allow surgeons to adjust timing based on healing

Clinical implication:
Absorbable sutures are often preferred in paediatric or non-compliant patients, while non-absorbable sutures allow more control over wound management.

2.5 Tensile Strength and Precision

• Absorbable sutures: Gradual loss of strength; suitable for tissues that heal quickly.
• Non-absorbable sutures: Superior long-term tensile strength and knot security.

In cosmetic surgery:
Fine control of wound edges—particularly in facial procedures—is often achieved with non-absorbable sutures due to their stability.

3. Applications in Cosmetic Surgery

Facial Procedures (e.g., Facelift, Blepharoplasty)

• Deep layers: absorbable sutures (e.g., PDO, Vicryl)
• Skin closure: fine non-absorbable sutures (e.g., nylon) for optimal scar minimisation

Breast Surgery (e.g., Augmentation, Reduction)

• Internal support: absorbable sutures
• Skin closure: often absorbable intradermal sutures to avoid visible marks

Body Contouring (e.g., Abdominoplasty)

• Multi-layer closure:
  • Deep fascia: long-lasting absorbable sutures
  • Dermis: absorbable
  • Skin: either absorbable subcuticular or non-absorbable depending on surgeon preference

4. Advantages and Disadvantages Summary

5. Current Trends and Best Practice

Modern cosmetic surgery increasingly favours:

• Layered closure techniques, combining both suture types
• Synthetic absorbable sutures, due to predictable degradation and reduced inflammation
• Subcuticular absorbable sutures, especially in aesthetic zones, to eliminate external marks

However, there is no universal “best” choice. The decision depends on:

• Anatomical location
• Skin tension
• Patient healing characteristics
• Surgeon expertise

6. Conclusion

Absorbable and non-absorbable sutures each have distinct roles in cosmetic surgery. Rather than being mutually exclusive, they are often used complementarily to optimise both structural support and aesthetic outcomes. Absorbable sutures provide convenience and minimise the need for follow-up, while non-absorbable sutures offer precision and durability where it matters most.

A tailored, patient-specific approach—guided by surgical goals and evidence-based practice—remains essential for achieving optimal cosmetic results.

References (for verification)

1. Dunn DL, et al. Wound Closure Manual. Ethicon.
2. Moy RL, et al. “Suture materials and techniques in skin closure.” Dermatologic Surgery (2002).
3. Pillai CK, et al. “Absorbable polymeric surgical sutures: chemistry, production, properties, biodegradability, and performance.” Journal of Biomaterials Applications (2010).
4. Edlich RF, et al. “Modern concepts of suture materials.” Journal of Long-Term Effects of Medical Implants (2005).
5. American Society of Plastic Surgeons (ASPS) clinical resources on wound closure.