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Dear Editor,
We read with great interest the article by Albert et al. published in European Spine journal entitled “Antibiotic treatment in patients with chronic low back pain and vertebral bone edema (Modic type 1 changes): a double-blind randomized controlled trial of efficacy”. Authors concluded that antibiotics could be considered as treatment option for patients with chronic lower back pain and Modic type 1 change [1].
The authors have discussed the role of Propionibacterium acnes in this group of patients. The antibiotic chosen was amoxicillin–clavulanate, 500/125 mg three times a day, for 100 days. This choice led to several comments: (1) it is known that P. acnes is usually susceptible to amoxicillin alone, (2) dose of amoxicillin–clavulanate usually used is 1,000/125 mg three times a day, and (3) what is the justification of the duration of treatment chosen? The study referenced by authors proposed shorter durations [2]. In recent decades, multidrug-resistant bacteria have led to major difficulties to treat infected patients. Inappropriate choice, including a too broad spectrum antibiotic, insufficient dose and too long duration of treatment which may promote poor observance are all risk factors for the emergence of antibiotic resistance [3]. More, initial antibiotic treatment is almost always administered parenterally and not orally [4]. On the other hand, the authors did not discuss the work published by Fayad et al. who studied the association between the severity of inflammatory endplate changes (Modic) on magnetic resonance imaging and the clinical response to intradiscal injection of corticosteroids in chronic low back pain. In this work, and in others, no infections were reported, which is not in favor of an infectious origin of the studied disease [5]. Furthermore, considering the biopsychosocial nature of chronic low back pain, authors observed absolutely no improvement in the control group in any dimension. The large size effect described in this study is prone to encourage confirmatory studies before recommending such intervention. However, we believe that, because of the risk of deficit of new antibiotics, current antibiotics should be reserved only for infectious diseases actually proven.
References
Albert HB, Sorensen JS, Christensen BS, Manniche C (2013) Antibiotic treatment in patients with chronic low back pain and vertebral bone edema (Modic type 1 changes): a double-blind randomized clinical controlled trial of efficacy. Eur Spine J 22:697–707
Uçkay I, Dinh A, Vauthey L, Asseray N, Passuti N, Rottman M, Biziragusenyuka J, Riché A, Rohner P, Wendling D, Mammou S, Stern R, Hoffmeyer P, Bernard L (2010) Spondylodiscitis due to Propionibacterium acnes: report of twenty-nine cases and a review of the literature. Clin Microbiol Infect 16:353–358
Wilke MH (2010) Multiresistant bacteria and current therapy—the economical side of the story. Eur J Med Res 15:571–576
Gouliouris T, Aliyu SH, Brown NM (2010) Spondylodiscitis: update on diagnosis and management. J Antimicrob Chemother 65(Suppl 3):iii11–iii24
Fayad F, Lefevre-Colau MM, Rannou F, Quintero N, Nys A, Macé Y, Poiraudeau S, Drapé JL, Revel M (2007) Relation of inflammatory modic changes to intradiscal steroid injection outcome in chronic low back pain. Eur Spine J 16:925–931
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Sotto, A., Dupeyron, A. Letter to the editor concerning: “Antibiotic treatment in patients with chronic low back pain and vertebral bone edema (Modic type 1 changes): a double-blind randomized controlled trial of efficacy” by Albert HB et al. Eur Spine J (2013) 22:697–707. Eur Spine J 22, 1704–1705 (2013). https://doi.org/10.1007/s00586-013-2898-y
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DOI: https://doi.org/10.1007/s00586-013-2898-y