Table 1.

Structural maintenance and cell viability after vitrification of triple-layered rabbit chondrocyte sheets

Vitrification method	Presence of COOH-PLL in VS*	No. of cell sheets recovered without fracture / No. of cell sheets examined (%)	Cell viability (mean ± SEM)
Non-vitrified control		8/8 (100)	94.6 ± 0.5a
Coating	+	10/10 (100)	92.1 ± 0.9a
	-	1/8 (12.5)	91.9 ± 0.7a
Envelope	+	7/7 (100)	86.8 ± 0.7b
Dish	+	7/7 (100)	77.6 ± 3.15c

^a-cValues with different superscript differ significantly (p < 0.05).

*VS: Vitrification Solution.