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TCA CROSS is the chemical reconstruction of skin scars (CROSS) using trichloroacetic acid (TCA). It is used as an inexpensive outpatient clinic procedure to treat atrophic acne scars. Acne is a common inflammatory skin condition and may result in atrophic, hypertrophic or keloid scars. Acne scars can cause significant psychological distress and social impact.
The TCA CROSS procedure involves depositing small amounts of TCA at high concentration (70–100%) onto the surface of the atrophicscar. This causes a local inflammatory reaction leading to the formation of new collagen fibres. The aim is to improve the appearance of the scar by increasing collagen reflectance and reducing shadows cast over scar depressions. Complete resolution is unlikely to be achieved with this treatment method alone.
Indications for TCA CROSS
Indications for TCA CROSS
The decision to perform TCA CROSS depends on:
- The type and severity of acne scarring
- Patient preference and expectations
- Clinician experience and expectations
TCA CROSS is useful in the following types of atrophic scar:
- Boxcar acne scars
- Rolling acne scars
- Ice-pick acne scars
Ice-pick scars
Rolling scars
Boxcar scars
Frosting after TCA Cross procedure
Treatment Time : 20-30 mins
Interval : Every 4-6 weeks
Downtime : 5-7 days
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