Fig. 1

Macroscopic repair score of the regenerated tissue. Individual scores are represented as dots (4 weeks) and squares (12 weeks) with the arithmetic means of the untreated and treated groups shown as horizontal bars. The scores (1–12) represent the overall repair by assessing the initially grafted surface, integration to border zone and macroscopic appearance. No significant (n.s.) difference within a group or between the three groups is given in the two timepoints