Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 1/12/2026

Evidence‑Based Management of Facelift Scars at 6 Months Post‑Operation

Treatment Scheduling

  • Plan 3–4 monthly microneedling (MNRF or fractional CO₂) sessions, spaced at least one month apart, followed by maintenance treatments every 6–12 months. 1

Microneedling Technical Parameters

  • Intradermal PRF injections should be performed with 30‑gauge, 4 mm needles. 2

PRF Application Strategy

  • Apply platelet‑rich fibrin (PRF) before microneedling so that needling drives platelets deeper into the dermis. 2
  • PRF delivers a more sustained release of growth factors and contains higher concentrations of these factors than platelet‑rich plasma (PRP). 1
  • PRF preparation is simpler, requires no anticoagulants, and is more cost‑effective than PRP. 1

Clinical Efficacy Outcomes

  • Microneedling + PRF produces a mean scar‑improvement of 70.4 % versus 48.8 % for PRP alone and 39.7 % for microneedling alone. 1
  • Objective skin‑quality gains with PRF persist for at least 6 weeks after the final session. 1
  • Statistically significant enhancements in skin texture, dermal thickness, and overall appearance are documented with microneedling + PRF. 1

Downtime and Safety Profile

  • Typical post‑procedure healing time is 24–48 hours. 2
  • Downtime is markedly shorter than that associated with deep chemical peels or ablative lasers. 2
  • Risk of post‑inflammatory hyperpigmentation is minimal because needle penetration does not exceed 2.5 mm. 2

Intradermal PRF Injection Technique (Adjunctive)

  • Target focal scar lines with intradermal PRF using 30‑gauge, 4 mm needles (bevel up) to create papules; inject points ≈ 5 mm apart. 2

Contra‑indications & Precautions

  • Patients who have used isotretinoin must wait 6 months after discontinuation before undergoing microneedling or laser therapy. 3
  • Active infection, open wounds, or active dermatitis are contraindications to microneedling/laser treatment. [2][3]
  • Avoid sun exposure before and after treatment and apply broad‑spectrum sunscreen throughout the care period. 2

Post‑Procedure Care

  • Avoid sunlight and heavily scented facial products for 24 hours after the procedure. 2
  • Do not perform microneedling over tattoos or permanent makeup. 2
  • Apply compounded topical anesthesia for at least 30 minutes prior to the procedure to improve patient comfort. 2

Timing and Success Rate of MNRF and CO2 Laser Treatments After Scar Revision Surgery

Optimal Timing for Treatment

  • For optimal outcomes and to minimize complications, MNRF and CO2 laser treatments should be delayed until at least 4-6 weeks after suture removal, with a full 3-month waiting period being ideal for most patients with atrophic scars 4
  • Allow an additional 4-6 weeks after suture removal before initiating any laser or microneedling treatments to ensure proper initial healing 4
  • Ideally, wait 3 months post-surgery before starting MNRF or CO2 laser treatments to allow for initial scar maturation 4

Treatment Protocol

  • For optimal results, plan for 3-4 monthly treatment sessions of either MNRF or CO2 laser 4
  • Treatments should be spaced at least one month apart to allow for proper healing between sessions 4, 5
  • After completing the initial treatment series, maintenance treatments can be performed every 6-12 months as needed 4

Success Rates and Efficacy

  • When combined with autologous platelet concentrates (APCs), the efficacy of microneedling combined with radiofrequency significantly increases 4, 5
  • Multiple studies demonstrate that combining microneedling with PRP or PRF produces better outcomes than microneedling alone 4, 5
  • Combining CO2 laser with PRP application shows significantly reduced downtime and faster healing 6
  • Studies indicate that PRF may be more effective than PRP when combined with microneedling for scar treatment 5, 7

Practical Recommendations

  • Begin with lower energy settings for the first treatment session to assess skin response 4
  • For MNRF, needle depth should start at 1.5mm and can be adjusted based on scar depth and patient tolerance 4, 8
  • Consider combining treatments with autologous platelet concentrates (PRP or PRF) to enhance outcomes and reduce downtime 4, 5, 6