Keloid / Hypertrophic scar

Intralesional cryotherapy is a relatively recent development that uses a double lumen needle, placed through the core of a keloid or hypertrophic scar, to deliver nitrogen vapor, which freezes the scar from its core, outwards. Cryotherapy seems to be an effective treatment modality for keloids of recent onset, particularly smaller lesions. Duration and thickness of the keloids were found to be the most important factors in determining treatment outcome with cryotherapy in our study.