Percutaneous periarticular analgesic injection at one day after simultaneous bilateral total knee arthroplasty: an open-label randomized control trial

Table 3 Mean number of suppositories used as rescue analgesia

Duration after surgery	Additional injection (22 patients/44 knees)	Control (22 patients/44 knees)	P value
On the night of surgery	0	0.09 ± 0.30	0.16
Day 1	0.23 ± 0.53	0.18 ± 0.39	0.75
Day 2	0.18 ± 0.39	0.32 ± 0.65	0.40
Day 3	0.23 ± 0.43	0.05 ± 0.21	0.082
Day 4	0.05 ± 0.21	0.09 ± 0.29	0.56
Day 5	0.14 ± 0.35	0.09 ± 0.29	0.64

ISSN: 1749-799X