. Author manuscript; available in PMC: 2012 Oct 1.

Published in final edited form as: Anesth Analg. 2011 Apr 5;113(4):897–903. doi: 10.1213/ANE.0b013e318212495b

Table 3.

Secondary end points (24 h period beginning at 07:30 the morning after surgery)

	Femoral Infusion (n=25)	Posterior Lumbar Plexus Infusion (n=22)	p-value
Hydromorphone equivalents (mg)	2.8 (1.0–7.4)	2.2 (1.2–7.6)	0.82
Total ambulation, morning (m)	2 (0–17)	11 (0–31)	0.01
Total ambulation, afternoon (m)	10 (3–50)	33 (2–67)	0.16
Infusion basal rate decreased (#)	3	1	0.61
Catheter inadvertently dislodged (#)	0	0
Local anesthetic infusion duration (h)	64 (47–76)	51 (44–72)	0.27
Hospitalization duration (days)	3.0 (2.0–4.0)	3.0 (2.0–3.0)	0.32

Values are reported as median (10^th–90^th percentiles)

NRS: Numeric Rating Scale (0–10: 0=no pain, 10=worst imaginable pain).