Avoidance of Total Knee Arthroplasty in Early Osteoarthritis of the Knee with Intra-Articular Implantation of Autologous Activated Peripheral Blood Stem Cells versus Hyaluronic Acid: A Randomized Controlled Trial with Differential Effects of Growth Factor Addition

Table 3

Activated autologous peripheral blood stem cell collection counts (total nucleated cells (TNC), CD34⁺ cells, and CD105⁺ cells) and cell viability at different times of injection in all patients.

Group	Day	TNC × 10^3/l in 3 ml	CD34 as % of TNC		CD105 as % of TNC		Viability (%)
			Fresh	Frozen	Fresh	Frozen	Fresh	Frozen
Group 1	0	1095	0.47		0.83		96
	7	1264		0.81		1.28		78.9
	14	1276		1.17		1.62		80.72
Group 2	0	1143	0.44				90.56
	7	1252		0.78		1.19		81.0
	14	1253		1.13		1.5		81.4
Group 3	0
	7
	14

Not applicable.