Investigating the efficacy of vacuum sealing drainage versus traditional negative pressure drainage in treating deep incision infections following posterior cervical internal fixation—a retrospective cohort study

Table 2 Comparison of postoperative infection indexes between the two groups

	VSD Group	TND Group	P
Implant retention rate	6/6	6/6
Duration of fever after debridement (day)	1.50 ± 0.46	4.28 ± 0.97	0.001
Laboratory examination (3 days after surgery)
WBC(× 10⁹/L)	7.88 ± 1.73	8.22 ± 1.99	0.571
ESR (mm/h)	47.00 ± 21.03	50.89 ± 14.26	0.401
CRP(mg/L)	66.89 ± 23.65	57.11 ± 18.18	0.668
VAS (3 days after surgery)	3.13 ± 0.83	3.44 ± 0.88	0.349
Positive microorganism results	5/6	2/6	0.001
Replacement times	2.67 ± 0.52	3.17 ± 0.41	0.032
The volume of liquid drainage fuid (ml)	395.63 ± 60.97	155.56 ± 32.54	0.001
Drainage time (day)	14.50 ± 2.98	22.56 ± 3.01	0.001
Hospitalization (day)	23.13 ± 3.27	34.33 ± 6.86	0.031
VAS (discharge)	2 ± 0.76	2.11 ± 0.60	0.479
Incidence of recurrence	0/6	0/6

ISSN: 2047-783X