A comparison of 0.375% ropivacaine psoas compartment block and 2% prilocaine spinal anaesthesia in dogs undergoing tibial plateau levelling osteotomy

Table 2 Postoperative evaluation. There was no difference in recovery quality and postoperative rescue analgesia (pRA) between the two groups. Percentage of dogs with complete block recovery was statistically significant different at 3, 5, and 8 h

Criterion	SA Group	PB Group	p-value
Recovery quality score	0 (0–2)	0 (0–2)	0.17
Dogs pRA requiring (%)	0/29 (0%)	2/29 (12%)	0.40
Median weight-bearing score at T0	3 (1–4)	2 (1–4)	0.90
Median weight-bearing score at T24	2.5 (1–4)	2 (1–4)	0.51
Complete block recovery at 3 h (%)	13/15 (87%)	5/15 (33%)	0.008
Complete block recovery at 5 h (%)	14/15 (93%)	7/15 (47%)	0.014
Complete block recovery at 8 h (%)	15/15 (100%)	9/15 (60%)	0.017
Complete block recovery at 12 h (%)	15/15 (100%)	13/15 (87%)	0.48
Complete block recovery at 24 h (%)	15/15 (100%)	15/15 (100%)	1

Residual block of the ischiatic nerve at 12 h was noted in 2/15 (13%) PB group dogs, which completely resolved at 24 h post-surgery
Two cases of pruritus and one case of urinary retention were recorded in the SA group. The two episodes of pruritus involved the back area at around 30 min after extubation and was treated with two boluses of propofol (1 mg/kg)

ISSN: 1746-6148