Table I.

Showing mean of variables

Mean factors	Control (n=21)	Intra-articular group (n=35)	Intravenous group (n=35)
Average age (years)	59.67	60.17	60.17
Duration of surgery (minutes)	81.3 ± 9.6	84.8 ± 9.1	86.3 ± 8.5
Blood loss during surgery (ml)	140 ± 15	155 ± 10	150 ± 20
Drain over 48 hours (ml)	493.81 ± 134	129.57 ± 98	277.71 ± 74
Fall in Hb (gm/dl)	2.64 ± 1.32	0.72 ± 0.64	1.36 ± 0.72
Fall in PCV (%)	5.52 ± 2.92	2.62 ± 2.52	4.34 ± 2.88
No. of transfusions	9 (25.7%)	2 (0.05%)	5 (14.2%)
(Units of Packed cells)