Table 1.

Histological analysis of the early inflammatory response 1, 3, and 9 days post-operatively. The prevalence and type of immune cells at the repair site was assessed over time. A standard scoring system was used to determine the levels of each outcome. Cellularity/PMN/Mono: + <50 per HPF, ++ 51-100 per HPF, +++ 101-150 per HPF, ++++ >150 per HPF. Vascularity: + <5 per HPF, ++ 6-10 per HPF, +++ > 10 per HPF. Fibroblast percentage: + = less than 5%, ++ = 5-50%, +++ > 50%. PMN = Polymorphonuclear cells, Mono = monocytes/macrophages, Fibro% = fibroblast percent compared to overall cellularity, HPF = High powered field (20x), (N=3-5).

	Cellularity	PMN	Mono	Fibro %	Vascularity
Day 1	++	++	−	+	−/+
Day 3	+	+	+	+	−/+
Day 9	+	+	+	++/+++	++