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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Wound infiltration with ropivacaine as an adjuvant to patient controlled analgesia for transforaminal lumbar interbody fusion: a retrospective study

Fig. 2

Boxplot showing VAS scores for back pain over the first 72 h postoperatively for two groups. The boxes indicate the interquartile range, the crosses within the boxes indicate the median, and the whiskers indicate the range. No significant difference was observed at each time between two groups(P > 0.05). h = hours postoperatively

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BMC Anesthesiology

ISSN: 1471-2253

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