A total of 20 patients will be allocated to one of two dosing groups. Patients who enter the study will have linear scars resulting from broken skin (e.g. trauma, surgery) between 7 and 20cm in length, as well as meeting other specific criteria. The scar to be treated will be divided into two equal segments. Each segment will receive an intradermal injection of Juvista or placebo on Day 0 and 24 hours later.