Impact of self-coiling catheters for continuous popliteal sciatic block on postoperative pain level and dislocation rate: a randomized controlled trial

Table 3 Additional anesthetic procedures, duration of catheter placement and surgery, postoperative basic analgesic medication, ropivacaine consumption and leakage

	RSC Group	SCC Group	P Value
Saphenous nerve block	64 (91.4)	56 (80)	0.05
Additional anesthetic procedure [no/%]			0.17
General anesthesia	53 (75.7)	60 (85.7)
Spinal anesthesia	10 (14.3)	6 (8.6)
Femoral nerve and obturator nerve block	0 (0)	2 (2.9)
Analgosedation	6 (8.6)	2 (2.9)
none	1(1.4)	0 (0)
Duration of catheter placement [min]	12.9 ± 4.3	12.9 ± 4.3	0.97
Duration of surgery [min]	94.4 ± 41.0	96.2 ± 39.4	0.79
Postop. analgesic medication [no/%]			0.2
Ibuprofen	46 (65.7)	55 (78.6)
Novamine sulfone	19 (27.1)	13 (18.6)
Ibuprofen + Novamine sulfone	5 (7.1)	2 (2.9)
Ropivacaine consumption [mg/ 24 h]
POD 0	283.8 ± 34.7	288.7 ± 10.0	0.26
POD 1	264 ± 112.1	233 ± 101.5	0.09
POD 2	108 ± 124.9	127.5 ± 116.7	0.38
POD 3	23 ± 84.4	52.1 ± 93.4	0.22
Leakage [no/%]
POD 0	8 (11.4)	6 (8.6)	0.83
POD 1	22 (31.4)	21 (30)	0.84
POD 2	21 (30)	22 (31.4)	0.6
POD 3	3 (4.3)	9 (12.9)	0.07

Values are given as absolute number (percentage) or mean (± standard deviation), as appropriate. Difference between groups were tested with Chi-square test or two-sided Student´s t-test with statistical significance considered at p < 0.05, POD postoperative day, RSC regular straight catheter, SCC self-coiling catheter

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