The Optimal Timing of Platelet-Rich Plasma (PRP) Injection for Nerve Lesion Recovery: A Preliminary Study

Table 1

Inflammation cells found on histopathologic analysis on each treatment groups.

	Treatment group (N)	Mean ± SD (%)	value
Inflammation cells in mean percentage area of 5 nerve bundle fragments	Control (7)	6 ± 2.6	0.001^a
	Group 1 (7)	16 ± 11.6
	Group 2 (7)	29 ± 3.3
	Group 3 (7)	14 ± 6.7
	Group 4 (7)	5 ± 1.3

^aKruskal–Wallis.