Table 6.

Adverse events within 4 days

Event	Nerve block (n = 79)	Periarticular injection (n = 81)	Δ	p value
Vomiting	19 (24%)	16 (20%)	0.04	0.51
Fall	3 (4%)	0 (0%)	0.04	0.12
Syncope	3 (4%)	1 (1%)	0.03	0.36
Urinary tract infection	2 (3%)	0 (0%)	0.03	0.24
Acute pulmonary embolism	1 (1%)	0 (0%)	0.01	0.49
Acute renal failure	1 (1%)	0 (0%)	0.01	0.49
Lumbar vertebral fracture after fall	1 (1%)	0 (0%)	0.01	0.49
Stroke middle cerebral artery	1 (1%)	0 (0%)	0.01	0.49
Pneumonia	2 (2%)	2 (2%)	0.00	> 0.99
Cellulitis	0 (0%)	2 (2%)	−0.02	0.50
Urinary retention	26 (33%)	33 (41%)	−0.08	0.30