Treatment of Keloid Scars
Yes, keloids can be removed, but treatment must be carefully planned as they have a high recurrence rate (50-80%) and often require combination therapy for optimal outcomes. 1
Treatment Options Based on Keloid Size
Small Keloids (<2 cm)
- First-line treatment:
- Silicone gel sheets
- Intralesional corticosteroid injections (triamcinolone acetonide)
- Add cryotherapy if no response after 3-4 sessions
Medium-Sized Keloids (2-5 cm)
- Combination therapy:
- Intralesional corticosteroids
- 5-fluorouracil
- Maintenance with silicone gel sheets and/or pressure therapy
Large Keloids (>5 cm) or Resistant Keloids
- Surgical excision followed by:
- Immediate post-excision intralesional corticosteroid injection
- Postoperative radiation therapy
- Maintenance with silicone gel sheets and/or pressure therapy
Surgical Approaches and Adjuvant Therapies
Surgical excision alone results in recurrence rates approaching 80%, making adjuvant therapy essential 2. The most effective approaches combine multiple modalities:
Surgical excision with radiation therapy:
- Has shown better outcomes than surgery with steroid injections
- In a randomized prospective trial, only 12.5% of keloids recurred after surgery and radiation therapy, compared to 33% with surgery and steroid injections 2
- Radiation is typically delivered at postoperative day 1 and 8 with a total dose of 16-18 Gy
Novel approaches for difficult cases:
- For large keloids, tissue expander implantation beneath the keloid followed by intralesional excision has shown 94.7% success rate in carefully selected patients 3
- Trepanation combined with superficial radiotherapy has been successful in treating facial keloids with no recurrence during a 3-year follow-up period 4
Biological and antineoplastic agents:
- Interferon alpha-2b: 18% recurrence rate when applied to post-surgical excised keloids
- Imiquimod 5%: Can lower recurrence rate on post-shaved keloids to 37.5% at 6 months and to 0% at 12 months 5
Important Considerations
- Location matters: Keloids on the ears and torso are particularly difficult to treat and have higher recurrence rates 1
- Long-term commitment: Treatment must be maintained for prolonged periods (months to years) 1
- Regular follow-up: Essential to detect and treat recurrences early 1
- Prevention: Patients with a history of keloids should avoid elective aesthetic procedures 1
Treatment Challenges
- No single treatment guarantees complete elimination of keloid scars
- Multiple treatment sessions are typically required before significant improvement is observed
- Psychological impact on patients can be significant due to the challenging nature of treatment and potential for recurrence
For optimal outcomes, a combination approach tailored to the specific characteristics of the keloid (size, location, previous treatment history) is essential, with a focus on preventing recurrence rather than just removing the existing keloid.