Table 1.

Model for the chart used to gather data on the parameters analyzed at the different assessment times, before and after the operation.

	Before	24 h after	48 h after	7 days after	21 days after	2 months after
Hb	X	X	X
Ht	X	X	X
ROM	X	X	X	X	X	X
Pain	X	X	X	X	X	X
WOMAC	X					X
Transfusion		X	X
Wound		X	X	X	X	X

Hb, hemoglobin; Ht, hematocrit; ROM, range of motion of the knee; Pain, verbal pain scale; WOMAC, Western Ontario and McMaster Universities Index¹⁹; Transfusion, evaluation of need for blood transfusion; Wound, observation of any abnormalities of healing.