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Surgical debridement with retention of spinal instrumentation and long-term antimicrobial therapy for multidrug-resistant surgical site infections after spinal surgery: a case series

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Abstract

Purpose

Post-operative surgical site infection (SSI) is one of the most significant complications after instrumented spinal surgery. However, implant retention feasibility for early-onset multidrug-resistant SSI is still controversial. We aimed to verify our therapeutic strategy, surgical debridement with implant retention and long-term antimicrobial therapy for post-operative early-onset multidrug-resistant SSI.

Methods

We retrospectively analyzed the clinical course of 11 cases [eight men and three women, with a mean age of 70.4 (54–82) years] with early-onset multidrug-resistant SSI out of 409 consecutive cases of spinal instrumentation surgery performed between 2007 and 2013 at our institution.

Results

The median duration of follow-up was 868 (178–1,922) days. All SSIs were controlled, without recurrence during follow-up. The microbial pathogens were methicillin-resistant Staphylococcus aureus (seven cases), multidrug-resistant Corynebacterium (two cases), methicillin-resistant Staphylococcus epidermidis (one case), and methicillin-resistant coagulase-negative Staphylococcus aureus (one case). The mean duration from SSI diagnosis to surgery was 2.9 (1–6) days. Ten patients underwent surgical debridement with implant retention. No patients required multiple operations. All patients were given antimicrobial treatments. Mean duration of intravenous antimicrobials (vancomycin, vancomycin+ piperacillin/tazobactam, or gentamicin) was 66.5 (12–352) days and 336 (89–1,673) days for oral antimicrobials (rifampicin + sulfamethoxazole/trimethoprim, sulfamethoxazole/trimethoprim, or minomycin). The mean duration of clinical signs and symptom recovery was 31.0 (7–73) days, and the mean time for normalization of C-reactive protein was 54.5 (7–105) days.

Conclusions

Early-onset multidrug-resistant SSI was successfully treated by surgical debridement with implant retention and long-term antimicrobial therapy.

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Acknowledgments

We thank Dr Keyra Martinez, of Edanz Group Ltd., for her editorial assistance during the manuscript preparation.

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Authors and Affiliations

  1. Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan

    Shingo Miyazaki, Kenichiro Kakutani, Koichiro Maeno, Toru Takada, Takashi Yurube, Masahiro Kurosaka & Kotaro Nishida

Authors
  1. Shingo Miyazaki
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  2. Kenichiro Kakutani
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  3. Koichiro Maeno
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  4. Toru Takada
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  5. Takashi Yurube
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  6. Masahiro Kurosaka
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  7. Kotaro Nishida
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Corresponding author

Correspondence to Kenichiro Kakutani.

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Miyazaki, S., Kakutani, K., Maeno, K. et al. Surgical debridement with retention of spinal instrumentation and long-term antimicrobial therapy for multidrug-resistant surgical site infections after spinal surgery: a case series. International Orthopaedics (SICOT) 40, 1171–1177 (2016). https://doi.org/10.1007/s00264-015-3073-3

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  • DOI: https://doi.org/10.1007/s00264-015-3073-3

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