Abstract
Purpose
To evaluate the efficacy and safety of negative pressure wound therapy (NPWT) for post-operative deep surgical site infection (SSI) after posterior instrumented spinal surgery.
Methods
We retrospectively compared the clinical outcomes of NPWT with standard debridement for deep SSI after posterior instrumented spinal surgery from 2012 to 2020 in our department. The primary outcomes were peri-operative characteristics including positive organism results, duration of fever, and visual analogue scale (VAS) pain scores three days after re-operation. The secondary outcomes were post-operative characteristics including implant infection recurrence, implant retention rate, duration of hospitalization, and VAS at discharge. Pearson's chi-squared analysis (categorical) and Student’s t test (continuous) were used to determine the differences.
Results
Thirty-four patients were included, of which 19 underwent NPWT, and 15 underwent standard debridement. Patients in the NPWT group all significantly improved primary outcomes including duration of fever after re-operation (0.95 ± 1.13 vs 4.07 ± 5.35, P = 0.001), positive organism results (14 of 19 vs 2 of 15, P < 0.01), and VAS at 3 days after re-operation (2.58 ± 0.69 vs 3.40 ± 1.06, P < 0.05). Patients in NPWT group exhibited significant decrease in implant infection recurrence (0 of 19 vs 5 of 15, P < 0.01), implant retention rate (19 of 19 vs 10 of 15, P < 0.01), duration of hospitalization (27.74 ± 10.95 vs 37.67 ± 13.67, P < 0.01).
Conclusions
NPWT is a feasible and safe treatment option for deep SSI after posterior instrumented spinal surgery.
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Data availability
All data analyzed during this study are included in the manuscript. The datasets used in this article are available from the corresponding author (Z.Q.C.) on reasonable request.
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Acknowledgements
We thank Associate Professor Li Jianhua for his help with the English writing of our manuscript.
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J.M.W. and Z.Q.C. made substantial contributions to acquisition, analysis, and interpretation of data. Z.Q.C. was responsible for the conception and design of the study and the drafting and writing of this manuscript. Y.Y., W.Q.X., and J.M.W. were a surgical assistant. All authors confirm the authenticity of all the raw data.
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This study has been approved by the 960th hospital of PLA. Each author certifies that all investigations were conducted in accordance with ethical principles. The participant involved in the study gave their informed consent and signed an informed consent form.
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Wang, J., Yang, Y., Xing, W. et al. Safety and efficacy of negative pressure wound therapy in treating deep surgical site infection after lumbar surgery. International Orthopaedics (SICOT) 46, 2629–2635 (2022). https://doi.org/10.1007/s00264-022-05531-w
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DOI: https://doi.org/10.1007/s00264-022-05531-w