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Table 2 Outcomes

From: Lateral femoral cutaneous nerve block with different volumes of Ropivacaine: a randomized trial in healthy volunteers

Variable

Group 8 mL

Group 16 mL

Difference and 95% CI

P

Coverage of posterior incision by temperature discrimination test, %

0.0

(0.0–0.0)

0.0

(0.0–0.0)

0.0

(0.0–3.5)

0.345

Coverage of lateral incision by temperature discrimination test, %

0.0

(0.0–19.3)

19.5

(0–45.3)

7.8

(−2.6–24.5)

0.221

Coverage of posterior incision by mechanical discrimination test, %

0.0

(0.0–0.0)

0.0

(0.0–0.0)

0.0

(0.0–0.0)

0.715

Coverage of lateral incision by mechanical discrimination test, %

0.0

(0.0–20.3)

0.0

(0.0–29.5)

3.9

(0.0–16.5)

0.110

Blocked area assessed by temperature discrimination test, cm2

418

(225.0)

564

(182.7)

146.3

(35.7–256.9)

0.012

Blocked area assessed by mechanical discrimination test, cm2

369

(211.4)

461

(156.0)

92.2

(7.8–176.6)

0.034

Post-block MVIC ≤80% of baseline, n

2

2

 

1.00

No pain during THS at superior portion of posterior incision, n

0

0

 

1.00

No pain during THS at superior portion of lateral incision, n

0

0

 

1.00

No pain during THS at inferior portion of posterior incision, n

0

1

 

1.00

No pain during THS at inferior portion of lateral incision, n

2

2

 

1.00

  1. Coverage outcomes are reported as medians (IQR). Blocked areas are reported as means (SD). Maximal voluntary isometric contraction (MVIC) are reported as number of participants. Pain during tonic heat stimulation (THS) are reported as number of participants feeling no pain