Is Surgical Drain Useful for Lumbar Disc Surgery?
OBJECTIVE
Surgical drains are commonly used after the spine surgeries for minimizing hematoma formation, which can delay wound healing and may become a source of fibrosis, infection, and pain. The drain, however, may provide a direct route for infection if it is contaminated. Our objective was to survey the relationship between surgical drains and infection.


METHODS
The 70 patients who had undergone single-level lumbar discectomy from April 2011 to March 2012 were retrospectively analyzed. Each patient's medical chart and magnetic resonance image were thoroughly reviewed after all the patients had been divided into the drainage and the nondrainage groups. The amounts and durations of the surgical drains in the drainage group were analyzed. Additionally, the levels of C-reactive protein, rates of infection, scores of preoperative and postoperative visual analog scale (VAS), and lengths of hospital stay after operation were compared between the 2 groups.


RESULTS
In this study, 70 patients were retrospectively analyzed; out of which, 42 and 28 patients were included in the drainage and the nondrainage groups, respectively. Two of the postoperative infection cases in the nondrainage group required to undergo repeated operations. The frequency of the postoperative infection cases was higher in the nondrainage group than in the drainage group; however, there was no significant statistical difference between the 2 groups (p=0.157).


CONCLUSIONS
Surgical drains did not elevate postoperative infection. Furthermore, drain tip cultures allowed us to detect postoperative infection at an early stage, and it led to faster initiation of antibiotics treatment.
Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea.
Ho Seok
HS
Choi
Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea.
Sang Gu
SG
Lee
Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea.
Woo Kyung
WK
Kim
Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea.
Seong
S
Son
Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea.
Tae Seok
TS
Jeong
Discectomy; Hematoma; Infection; Lumbar disc disease; Suction; Treatment outcome