Table 4.

Adverse events regarding surgery in all patients at each time point [n (%)]

Adverse events	t0	t1	t2	t3	t4	t5
Total number	228	228	228	228	186	146
Intraoperative
The pain intensified	164 (71.9)
Bleeding	7 (3.1)
Nerve injury	0
Postoperative
Abdominal muscle weakness		42 (18.4)	15 (6.6)	0	0	0
Numbness		203 (89.0)	190 (83.3)	111 (54.1)	44 (23.7)	15 (10.3)

t0 intraoperative, t1 lasting 1 day after surgery, t2 lasting 1 month after surgery, t3 lasting 6 months after surgery, t4 lasting 1 year after surgery, t5 lasting 2 years after surgery