Fig. 2

NRS score at rest and during movement. Legend: The NRS score of patients at rest and during movement at different time points. Data is presented as mean ± SD. Compared with group P, the NRS score (at rest and during movement) was decreased significantly at 24 h in group TP (P<0.05), but there was no significant difference at 48 h between two groups (P > 0.05). In group TP, the NRS score during movement was significantly lower than that in group P at 3 months after surgery (P<0.05). There were no significant difference of NRS score at 6 months after surgery between two groups (P > 0.05). NRS = numerical rating scale. Group P=PCIA only, Group TP = PCIA and TAP block. * P<0.05