A Prospective Observational Study on Outcomes of Single Stage Posterior Decompression and Fixation for Dorsolumbar Spine Tuberculosis / Estudo observacional prospectivo sobre os desfechos da descompressão posterior e fixação em estágio único na tuberculose da coluna dorsolombar

Abstract Objective To study the results of only posterior decompression and instrumentation in dorsal and dorsolumbar spine tuberculosis. Methods The patients (n = 30) who were included in this study had dorsal or dorsolumbar spine tuberculosis, with or without neurological deficit, and with or without deformity. All 30 patients were managed by only posterior approach decompression and instrumentation. We studied cases for correction and maintenance of deformity at dorsal and dorsolumbar spine, functional outcome by the Oswestry disability index (ODI) and visual analogue scale (VAS) scores, as well as neurological outcome by the Frankel grade. Results In the current series, 30 patients were operated with single stage posterior decompression and instrumentation, and showed significant improvement in neurological status and functional outcomes, which were accessed by the ODI score, VAS score, and Frankel grade. Conclusion The posterior (extracavitary) approach provides optimum access to the lateral and anterior aspects of the spinal cord for good decompression. It facilitates early mobilization and avoids problems of prolonged recumbency, provides better functional outcome, and significantly better sagittal plane kyphosis correction.

Resumo Objetivo Estudar os desfechos da descompressão posterior isolada e instrumentação na tuberculose da coluna dorsal e dorsolombar. Métodos Os pacientes (n = 30) incluídos neste estudo apresentavam tuberculose na coluna dorsal ou dorsolombar, acompanhada ou não por déficit neurológico e/ou deformidade. Todos os 30 pacientes foram tratados apenas por descompressão posterior e instrumentação. Estudamos a correção e manutenção da deformidade na coluna dorsal e dorsolombar, o desfecho funcional segundo o índice de deficiência de Oswestry (ODI) e a escala visual analógica (EVA); o desfecho neurológico foi estudado de acordo com a classificação de Frankel. Resultados Na atual série, 30 pacientes foram submetidos à descompressão posterior e instrumentação em estágio único e apresentaram melhora significativa no estado neurológico e desfecho funcional segundo os scores de ODI, EVA e classificação de Frankel. Conclusão A abordagem posterior (extracavitária) permite o acesso ideal aos aspectos laterais e anteriores da medula espinhal para uma boa descompressão. Facilita a mobilização precoce, evita problemas associados ao decúbito prolongado, proporciona melhor desfecho funcional e corrige a cifose no plano sagital de maneira significativamente melhor.

The Relative Lymphocyte Count is Lower when the Etiological Agent in Pott Disease is Successfully Isolated / O número relativo de linfócitos é menor quando o agente etiológico da doença de Pott é isolado com sucesso

Abstract Objective To describe the clinico-epidemiological, laboratory, and radiological characteristics of tuberculous spondylodiscitis in the Brazilian population, and to assess whether there are differences between patients in whom the etiological agent in Pott disease was isolated or not. Methods Patients diagnosed with tuberculosis (TB) of the spine (Pott disease) underwent follow-up between 2009 and 2019 at a quaternary hospital and were divided into 2 groups: successful isolation (SI) of the etiological agent (through bacilloscopy, culture, or positive molecular rapid test) and unsuccessful isolation (UI) of the etiological agent. Results From a total of 26 patients diagnosed with TB of the spine, 21 (80.7%) were male, with a mean age of 40 ± 22.5 years. The average lymphocyte counts were higher in the UI group (25.35 ± 13.08; p= 0.025) compared to the SI group (14.18 ± 7.48). Moreover, the monocyte/lymphocyte ratio was lower in the UI group (0.39 ± 0.22; p= 0.009) than in the SI group (0.89 ± 0.65). Relative lymphocyte counts higher than or equal to 16.7 had a sensitivity of 76.9% and specificity of 62.5% in the UI group. Values higher than or equal to 0.58 for the monocyte/lymphocyte ratio showed a sensitivity of 84.6% and specificity of 75.0% in the UI group. Conclusion No differences were observed regarding the clinico-epidemiological and radiological characteristics of the two experimental groups. However, the UI group had higher lymphocyte counts and a lower monocyte/lymphocyte ratio.

Resumo Objetivo Descrever as características clínico-epidemiológicas, laboratoriais e radiológicas da espondilodiscite tuberculosa na população brasileira e avaliar se há diferenças entre pacientes em que o agente etiológico da doença de Pott foi isolado ou não. Métodos Os pacientes diagnosticados com tuberculose (TB) da coluna (doença de Pott) foram acompanhados em um hospital quaternário entre 2009 e 2019 e divididos em 2 grupos: isolamento positivo (IP) do agente etiológico (por baciloscopia, cultura ou teste rápido molecular positivo) e isolamento negativo (IN) do agente etiológico. Resultados De um total de 26 pacientes com diagnóstico de TB da coluna, 21 (80,7%) eram do sexo masculino, e a média de idade era de 40 ± 22,5 anos. As contagens médias de linfócitos foram maiores no grupo IN (25,35 ± 13,08; p= 0,025) do que no grupo IP (14,18 ± 7,48). Além disso, a relação monócito/linfócito foi menor no grupo IN (0,39 ± 0,22; p= 0,009) do que no grupo IP (0,89 ± 0,65). O número relativo de linfócitos maior ou igual a 16,7 teve sensibilidade de 76,9% e especificidade de 62,5% no grupo IN. A razão monócito/linfócito maior ou igual a 0,58 teve sensibilidade de 84,6% e especificidade de 75,0% no grupo IN. Conclusão Não observamos diferenças em relação às características clínico-epidemiológicas e radiológicas entre os dois grupos experimentais. No entanto, o grupo IN apresentou maior número de linfócitos e menor razão monócito/linfócito.

Espondilodiscitis por haemophilus parainfluenzae: un reporte de caso / Spondylodiscitis due to haemophilus parainfluenzae: a case report

INTRODUCCIÓN Haemophilus parainfluenzae (HP) es un cocobacilo gram negativo y un patógeno oportunista. Rara vez se asocia a infecciones vertebrales o musculoesqueléticas, y está muy poco reportado en la literatura. PRESENTACIÓN DELO CASO Una mujer de 45 años, sana, que presentaba un historial de dos semanas de lumbalgia progresiva, fiebre, coriza y congestión nasal, y que tenía discitis intervertebral causada por HP, confirmada por dos hemocultivos positivos y hallazgos progresivos de resonancia magnética (RM) de columna lumbar. Los hallazgos de la RM fueron atípicos, y consistían en un absceso del psoas y pequeñas colecciones de líquido epidural e intraespinal anterior asociadas con espondilodiscitis. El diagnóstico inicial se retrasó debido a que la RM inicial no reveló hallazgos que sugirieran un proceso infeccioso. El tratamiento consistió en un ciclo prolongado de administración intravenosa seguida de antibióticos orales, lo que finalmente produjo una buena respuesta clínica. DISCUSIÓN Y CONCLUSIÓN El HP es un patógeno muy raro en la espondilodiscitis. No obstante, debe tenerse en cuenta, especialmente en pacientes que presentan lumbalgia y fiebre y/o bacteriemia por microorganismos gram negativos. El estudio inicial debe incluir una RM de la columna con contraste. Aunque es poco común, la espondilodiscitis y un absceso del psoas pueden presentarse concomitantemente. Los antibióticos prolongados son el pilar del tratamiento.

INTRODUCTION Haemophilus parainfluenzae (HP) is a gram-negative coccobacillus and an opportunistic pathogen. It is rarely associated with spinal- and musculoskeletal-site infections, and very little reported in the literature. CASE PRESENTATION An otherwise healthy, 45-year-old woman who presented with a two-week history of progressive low back pain, fever, coryza and nasal congestion, was found to have intervertebral discitis caused by HP, confirmed by two positive blood cultures and progressive lumbar spine magnetic resonance imaging (MRI) findings. The MRI findings were atypical, consisting of a psoas abscess and small anterior epidural and intraspinal fluid collections associated with spondylodiscitis. The initial diagnosis was delayed because the initial MRI failed to reveal findings suggestive of an infectious process. The treatment consisted of a long course of intravenous followed by oral antibiotics, ultimately yielding a good clinical response. DISCUSSION AND CONCLUSION Haemophilus parainfluenzae is a very rare pathogen in spondylodiscitis. Nonetheless, it should be considered, especially in patients presenting with low back pain and fever and/or gram negative bacteremia. The initial work-up should include contrast-enhanced MRI of the spine. Although rare, spondylodiscitis and a psoas abscess can present concomitantly. Prolonged antibiotics are the mainstay of treatment.

Morphological aspect of pyogenic spinal epidural abscesses. part i / Aspecto morfológico dos abscessos peridurais piogênicos da coluna. parte i / Aspecto morfológico de los abscesos epidurales espinales piógenos. parte i

ABSTRACT Background: Pyogenic Spinal Epidural Abscess (PSEA) is difficult to diagnose and can have devastating consequences. Magnetic Resonance Imaging (MRI) has high sensitivity and specificity, which are further increased with the use of contrast. There are several classifications of vertebral infectious processes, with emphasis on spondylodiscitis. Objective: To analyze the morphological parameters and their reproducibility; and to analyze different resonance imaging sequences. Methods: Using an image database, a morphological classification of PSEA was planned, with five parameters: Region (R), indicating the upper and lower limits of the abscess; Location (U), indicating whether the abscess is anterior or posterior within the canal; Compromise (C), meningeal or content of the structures; Association (A), discitis, osteomyelitis or both; and Perivertebral (P), anterior, lateral or posterior extravertebral abscess. The first three parameters give an idea of the volume of the PSEA, while the last two give the related infectious foci. Thirty-five cases were analyzed using Kappa's coefficient. Results: The global intra- and interobserver reproducibility was Kappa 0.81. The results for each parameter were as follows: R=0.95, U=0.92, C=0.66, A=0.70 and P=0.80. The first three give a notion of volume and the last two relate to the presence of vertebral infectious foci outside the canal. T2 weighted MRI with contrast was found to be the most effective imaging sequence. Conclusion: The morphological classification is simple to use, with excellent reproducibility. The parameters with the highest reproducibility were region and location, with values >0.92. The addition of gadolinium contrast increased the sensitivity of the diagnosis; the use of sagittal and axial images in T2-MRI was the most sensitive imaging sequence. Evidence Level III; Original.

RESUMO Introdução: O abscesso peridural piogênico da coluna (PSEA) é de difícil diagnóstico e pode ter consequências devastadoras. A ressonância magnética (RM) tem alta sensibilidade e especificidade, que são aumentadas ainda mais com contraste. Existem várias classificações dos processos infecciosos vertebrais, com ênfase em espondilodiscite. Objetivo: Analisar os parâmetros morfológicos e sua reprodutibilidade; e analisar as diferentes sequências de imagens de ressonância. Métodos: A partir de um banco de imagens, foi planejada uma classificação morfológica do PSEA, com cinco parâmetros: Região (R) que indica os limites superior e inferior do abscesso; Localização (U), indicando se o abscesso é anterior ou posterior dentro do canal; Comprometimento (C), meníngeo ou de conteúdo das estruturas; Associação (A), discite, osteomielite ou ambas e Perivertebral (P), abscesso extravertebral anterior, lateral ou posterior. Os três primeiros parâmetros dão uma ideia do volume da PSEA, enquanto os dois últimos mostram os focos infecciosos relacionados. Trinta e cinco casos foram analisados usando o coeficiente de Kappa. Resultados: A reprodutibilidade global intra e interobservador foi Kappa 0,81. Os resultados para cada parâmetro foram os seguintes: R = 0,95, U = 0,92, C = 0,66, A = 0,70 e P = 0,80. Os três primeiros dão uma noção de volume e os dois últimos se relacionam com a presença de focos infecciosos vertebrais fora do canal. A RM ponderada em T2 com contraste foi considerada a sequência de imagens mais eficaz. Conclusões: A classificação morfológica é simples de usar e tem excelente reprodutibilidade. Os parâmetros com maior reprodutibilidade foram região e localização com valores > 0,92. A adição do contraste de gadolínio aumentou a sensibilidade do diagnóstico; o uso de imagens sagitais e axiais em RM T2 foi a sequência de imagens mais sensível. Nível de Evidência III; Original.

RESUMEN Introducción: El absceso epidural espinal piógeno (PSEA) es difícil de diagnosticar y puede tener consecuencias devastadoras. La resonancia magnética (RM) tiene una alta sensibilidad y especificidad, que aumentan aún más con el contraste. Existen varias clasificaciones de los procesos infecciosos vertebrales, con énfasis en la espondilodiscitis. Objetivo: Analizar los parámetros morfológicos y su reproducibilidad; y analizar las diferentes secuencias de imágenes de resonancia. Métodos: Utilizando un banco de imágenes, se planificó una clasificación morfológica del PSEA, con 5 parámetros: Región (R), que indica los límites superior e inferior del absceso; Ubicación (U), que indica si el absceso es anterior o posterior dentro del canal; Compromiso (C), meníngeo o contenido de las estructuras; Asociación (A), discitis, osteomielitis o ambas; y absceso perivertebral (P), anterior, lateral o posterior extravertebral. Los tres primeros parámetros dan una idea del volumen del PSEA y los dos últimos los focos infecciosos relacionados. Se analizaron 35 casos mediante el coeficiente Kappa. Resultados: La reproducibilidad general intra e interobservador fue Kappa 0,81. Los resultados de cada parámetro fueron los siguientes:: R=0,95, U=0,92, C=0,66, A=0,70 y P=0,80. Los tres primeros dan una noción de volumen y los dos últimos se relacionan con la presencia de focos infecciosos vertebrales fuera del canal. La resonancia magnética ponderada en T2 con contraste se consideró la secuencia de imágenes más eficaz. Conclusiones: La clasificación morfológica es sencilla de utilizar y tiene una excelente reproductividad. Los parámetros con mayor reproducibilidad fueron la región y ubicación con valores > 0,92. La adición de contraste de gadolinio aumentó la sensibilidad del diagnóstico; el uso de imágenes sagitales y axiales en RM T2 fue la secuencia de imágenes más sensible. Nivel de Evidencia III; Original.

Espondilodiscite em idade pediátrica ­ uma doença rara, um diagnóstico difícil / Spondylodiscitis in pediatric age ­ a rare disease, a difficult diagnosis

Introdução e objetivo: a espondilodiscite é a infeção que atinge o disco intervertebral e as vértebras contíguas e representa dois a quatro % do total das infeções osteoarticulares em idade pediátrica. O agente patogénico é identificado em cerca de metade dos casos, sendo o Staphylococcus aureus o mais frequentemente isolado. Estudos recentes demonstram que entre os seis meses e os quatro anos a Kingella kingae tem um papel etiológico importante. O objetivo da exposição deste caso clínico foi chamar atenção para esta patologia rara cujo diagnóstico é difícil e exige um elevado nível de suspeição. Descrição do caso: criança de 16 meses, sexo masculino, com antecedentes de obstipação, é trazida múltiplas vezes à Urgência Pediátrica por quadro com mais de um mês de evolução de irritabilidade persistente, dor abdominal e recusa da marcha de agravamento progressivo. Na segunda vinda à Urgência Pediátrica apresentava dorsolombalgia à palpação da coluna dorsolombar e diminuição da lordose lombar, o que motivou a realização de avaliação analítica, sumária de urina, ecografia renal e vesical e radiografia dorsolombar sem alterações. Na terceira vinda à Urgência Pediátrica foi decidido internamento e solicitada ressonância magnética nuclear dorsolombar e cintigrafia óssea que revelaram espondilodiscite em D7-D8. Parâmetros analíticos sem alterações valorizáveis, exceto discreta elevação da velocidade de sedimentação. Hemoculturas e restante estudo etiológico negativo. Iniciou terapêutica endovenosa com cefu-roxime e flucloxacilina, com melhoria progressiva das queixas álgicas. Aquando da alta, assintomático, mantendo flucloxacilina oral até completar seis semanas de tratamento. Reavaliado posteriormente, encontrando-se assintomático, com um exame físico, reavaliação analítica e radiografia dorsolombar sem alterações. Conclusões: a espondilodiscite é uma identidade de difícil diagnóstico, especialmente na criança, devido à sua raridade, clínica inespecífica, impossibilidade de as crianças verbalizarem os seus sintomas e aos sinais radiológicos tardios, requerendo um alto índice de suspeição. O intervalo médio de tempo entre o início dos sintomas e o diagnóstico é de três semanas a três meses. A ressonância magnética é o exame de escolha. As hemoculturas são, muitas vezes, negativas. O pilar do tratamento é a antibioterapia por várias semanas, mas a sua escolha e duração são controversas. O tratamento inadequado pode originar dor crônica, sequelas ortopédicas graves e complicações neurológicas devastadoras. Quando atempada e adequadamente tratada, a maioria dos casos apresenta uma evolução clínica benigna e autolimitada.

Introduction and objective: spondylodiscitis is an infection that affects the intervertebral disc and the contiguous vertebrae. It represents two to four % of all osteoarticular infections in pediatric age. The pathogen is identified in about half of the cases, with Staphylococcus aureus being the most frequently isolated. Recent studies show that between six months and four years, Kingella kingaehas an important etiological role. The purpose of the presentation of this clinical case was to draw attention to this rare pathology whose diagnosis is difficult and requires a high level of suspicion. Clinical case description: a sixteen-month-old male, with a history of constipation, is brought multiple times to the Pediatric Emergency Department for a clinical picture with more than a month of evolution of persistent irritability, abdominal pain and refusal to walk, with progressive worsening. On the second visit to the Pediatric Emergency Department, he presented dorsolombalgia on palpation of the dorsolumbar spine and decreased lumbar lordosis, which led to the performance of analytical evaluation, urinalysis, renal and bladder ultrasound and dorsolumbar radiography, all without changes. On the third visit to the Pediatric Emergency Department, hospitalization was decided and dorsolumbar nuclear magnetic resonance and bone scintigraphy were requested, revealing spondylodiscitis in D7-D8. Analytical parameters had no changes, except for a slight increase in erythrocyte sedimentation rate. Blood cultures and remaining etiological study negatives. Intravenous therapy with cefuroxime and flucloxacillin was started with progressive improvement of pain. Upon discharge he was asymptomatic and maintained oral flucloxacillin until a total of six weeks of treatment. He was subsequently reassessed and remained asymptomatic, with a physical examination, analytical evaluation and dorsolumbar radiography without changes. Conclusions: spondylodiscitis is an identity that is difficult to diagnose, especially in children, due to its rarity, unspecific clinic, inability for children to verbalize their symptoms and late radiologic signs, requiring a high index of suspicion. The average time between the onset of symptoms and the diagnosis is three weeks to three months. Magnetic resonance imaging is the exam of choice. Blood cultures are often negative. The mainstay of treatment is antibiotic therapy for several weeks, but its choice and duration are controversial. Inappropriate treatment can lead to chronic pain, severe orthopaedic sequelae and devastating neurological complications. When timely and properly treated, most cases have a benign and self-limited clinical course.

Candida Tropicalis Spondylodiscits in an Immunocompetent Host: A Case Report and Literature Review

Background Fungal spondylodiscitis is not common but should be suspected in some cases. Candida tropicalis infections are being more frequently diagnosed due to some factors related to the microorganism. Case Description A C. tropicalis spondylodiscitis is described in a 72-year-old man who was treated with a combination of echinocandin (micafungin) and surgery. Conclusion The presence of some risk factors should promptly raise the suspicion of fungal spondylodiscitis. Treatment should be instituted as early as possible for the best outcome for the patient.

Conservative Management of Spondylodiscitis after Laparoscopic Sacral Colpopexy: A Case Report and Review of Literature / Manejo conservador da espondilodiscite após colpopexia sacral laparoscópica: Relato de caso e revisão da literatura

Abstract Sacral colpopexy is one of the standard procedures to treat apical pelvic organ prolapse. In most cases, a synthetic mesh is used to facilitate the colposuspension. Spondylodiscitis is a rare but potentially serious complication that must be promptly diagnosed and treated, despite the lack of consensus in the management of this complication.We report one case of spondylodiscitis after a laparoscopic supracervical hysterectomy and sacral colpopexy treated conservatively. We also present a literature review regarding this rare complication. A conservative approach without mesh removal may be possible in selected patients (stable, with no vaginal lesions, mesh exposure or severe neurologic compromise). Hemocultures and culture of imageguided biopsies should be performed to direct antibiotic therapy. Conservative versus surgical treatment should be regularly weighted depending on clinical and analytical progression. A multidisciplinary team is of paramount importance in the follow-up of these patients.

Resumo A colpopexia sacral é um dos procedimentos padrão para tratar o prolapso de órgãos pélvicos apical. Na maioria dos casos, uma tela sintética é usada para facilitar a colposuspensão. A espondilodiscite é uma complicação rara, mas potencialmente grave, que deve ser prontamente diagnosticada e tratada, apesar da falta de consenso no manejo dessa complicação. Relatamos um caso de espondilodiscite após histerectomia supracervical laparoscópica e colpopexia sacral tratada conservadoramente. Também apresentamos uma revisão da literatura sobre essa complicação rara. Uma abordagem conservadora sem remoção da tela pode ser possível em pacientes selecionadas (estáveis, sem lesões vaginais, exposição da tela ou comprometimento neurológico grave). Hemoculturas e cultura de biópsias guiadas por imagem devemser realizadas para direcionar a antibioticoterapia. O tratamento conservador versus o cirúrgico deve ser avaliado regularmente, dependendo da progressão clínica e analítica. Uma equipe multidisciplinar é de suma importância no acompanhamento desses pacientes.

Candida parapsilosis Infection after Lumbosacral Arthrodesis with a PEEK TLIF Interbody Fusion Device: Case Report / Infecção por Candida parapsilosis em pós-operatório de artrodese lombossacra com dispositivo de fusão intersomático TLIF em PEEK: Relato de caso

Abstract Spondylodiscitis is an uncommon but serious complication after spine surgeries, and its main etiologic agent is Staphylococcus aureus. Fungal infections are rare and mostly caused by Candida albicans. We report the clinical case of a 69-year-old male patient who underwent a L2-S1 arthrodesis for degenerative scoliosis correction. He presented an infection 2.5 months after the procedure, a spondylodiscitis at L5-S1 levels, caused by Candida parapsilosis. The treatment consisted of surgical material removal, tricortical iliac graft placement in an anterior approach (L5-S1), lumbopelvic fixation (from T10 to the pelvis) in a posterior approach, and drug treatment with anidulafungin and fluconazole. This last medication was administered for 12 months, with good clinical outcomes.

Resumo As espondilodiscites são complicações infrequentes, porém graves em pós-operatórios de cirurgias da coluna vertebral, tendo como principal agente etiológico o Staphylococcus aureus. As infecções fúngicas são raras, sendo a Candida albicans a principal representante desse grupo. Relatamos o caso clínico de um paciente do sexo masculino, 69 anos, operado com artrodese de L2 a S1 para correção de escoliose degenerativa. O paciente apresentou quadro clínico infeccioso 2 meses e meio após o procedimento, relacionado à espondilodiscite L5-S1, causada por Candida parapsilosis. O tratamento consistiu na remoção do material cirúrgico, colocação de enxerto tricortical de ilíaco pela via anterior (L5-S1) e fixação lombopélvica (de T10 à pelve) pela via posterior, além de iniciar o tratamento medicamentoso com anidulafungina e fluconazol, mantendo essa última medicação por 12 meses, com boa evolução clínica.

Infecciones piógenas de la columna vertebral / Pyogenic spinal infections

Las infecciones espinales son cuadros clínicos poco frecuentes, que exigen un alto índice de sospecha. La prevalencia de infecciones piógenas de la columna ha ido en aumento, en parte debido al envejecimiento de la población y a un mayor número de pacientes inmunocomprometidos. El estudio imagenológico se puede iniciar con radiografías simples, pero la resonancia magnética es el examen imagenológico de elección, ya que puede dar resultados positivos de forma precoz, entregando información más detallada del compromiso vertebral y tejidos blandos adyacentes. Aunque la clínica y los hallazgos imagenológicos nos pueden orientar, es importante intentar un diagnóstico microbiológico tomando cultivos y muestras para identificar al agente causal antes de iniciar los antibióticos; aunque es óptimo un tratamiento agente-específico, hasta un 25% de los casos queda sin diagnóstico del agente. El tratamiento es inicialmente médico, con antibióticos e inmovilización, pero se debe considerar la cirugía en casos de compromiso neurológico, deformidad progresiva, inestabilidad, sepsis no controlada o dolor intratable. El manejo quirúrgico actual consiste en el aseo y estabilización precoz de los segmentos vertebrales comprometidos. Descartar una endocarditis concomitante y el examen neurológico seriado son parte del manejo de estos pacientes.

Spinal infections are unusual conditions requiring a high index of suspicion for clinical diagnosis. There has been a global increase in the number of pyogenic spinal infections due to an aging population and a higher proportion of immunocompromised patients. The imaging study should start with plain radiographs, but magnetic resonance imaging (mri) is the gold standard for diagnosis. Mri can detect bone and disc changes earlier than other methods, and it provides detailed information on bone and adjacent soft tissues. Blood cultures and local samples for culture and pathology should be obtained, trying to identify the pathogen. According to the result, the most appropriate drug must be selected depending on susceptibility and penetration into spinal tissues. Treatment should start with antibiotics and immobilization; surgery should be considered in cases with neurological impairment, progressive deformity, spine instability, sepsis, or non-controlled pain. Current surgical treatment includes debridement and early stabilization. Practitioners should rule out endocarditis and perform a serial neurological examination managing these patients.

Serratia marcescens as a cause of cervical myelopathy / Serratia marcescens como causa de mielopatia cervical / Serratia marcescens como causa de mielopatía cervical

ABSTRACT Introduction: The main causative agent of spinal infections is Mycobacterium Tuberculosis, followed by saprophytes of the skin. The most affected segment is the lumbar, followed by the thoracic. Objective: Case report. Results: A previously healthy 40-year-old man with posterior cervical pain and myelopathy was referred to our spine service for vertebral destruction syndrome in C3-C4 and altered carbohydrate metabolism. Microdiscectomy and abscess drainage were performed and a biopsy was taken for definitive diagnosis. Multiresistant Serratia Marcescens was isolated in the culture. Both the myelopathy and carbohydrate intolerance were resolved as the infection was resolved. Conclusion: The significance of this case lies in the infective presentation of the S. Marcescens in an immunocompetent person, since it is mainly an opportunistic microorganism, and in the atypical location. The most commonly isolated pathogen is Mycobacterium Tuberculosis, followed by Staphylococcus aureus. Identification of the causative agent is essential to the initiation of antibiotic therapy. Therefore, microbiological isolation plays a fundamental role in the treatment, recovery and quality of life of the patient. Level of evidence V; Case report.

RESUMO Introdução: O principal agente causador das infecções da coluna vertebral é o Mycobacterium tuberculosis, seguido pelos saprófitos da pele. O segmento mais afetado é o lombar, seguido pelo torácico. Objetivo: Relato de caso. Resultados: Um homem, anteriormente saudável, de 40 anos, com dor cervical posterior e mielopatia como principal sintomatologia, foi encaminhado ao nosso serviço de coluna vertebral com síndrome de destruição vertebral em C3-C4 e alteração do metabolismo de carboidratos. A microdiscectomia e a drenagem de abscessos foram realizadas e uma biópsia foi feita para diagnóstico definitivo. A Serratia marcescens multirresistente foi isolada na cultura. Tanto a mielopatia como a intolerância a carboidratos foram resolvidas, uma vez que a infecção foi tratada. Conclusão: A importância desse caso reside na apresentação infecciosa da S. marcescens em uma pessoa imunocompetente, uma vez que esse é principalmente um microrganismo oportunista e por sua localização atípica. O patógeno mais comumente isolado é o Mycobacterium tuberculosis, seguido pelo Staphylococcus aureus. A identificação do agente causador é essencial para início da terapia com antibióticos. Portanto, o isolamento microbiológico desempenha um papel fundamental no tratamento, recuperação e qualidade de vida do paciente. Nível de evidência: V; Relato de caso.

RESUMEN Introducción: El principal agente causal de las infecciones de columna es la Mycobacterium Tuberculosis seguido de los saprófitos de la piel y el principal segmento afectado es el lumbar, seguido del torácico. Objetivo: Reporte de caso. Resultados: Presentamos un masculino de 40 años previamente sano, referido al servicio de columna por síndrome de destrucción vertebral C3-C4, con dolor cervical posterior y mielopatía como principal sintomatología, y alteración del metabolismo de carbohidratos. Se realizó microdiscectomía y drenaje de absceso con toma de biopsia para diagnóstico definitivo. En el cultivo se aisló Serratia Marcescens, multirresistente. La mielopatía y la intolerancia a los carbohidratos se resolvieron una vez resuelta la infección. Conclusión: La importancia de este caso radica en la presentación infectante de la S. Marcescens en una persona inmunocompetente ya que esta es principalmente un microorganismo oportunista y por su localización atípica. El patógeno más comúnmente aislado es Mycobacterium Tuberculosis seguido de Staphylococcus aureus. La identificación del agente causal es fundamental para iniciar la terapéutica antibiótica. Por lo tanto, el aislamiento microbiológico tiene un papel fundamental en el tratamiento, la recuperación y calidad de vida del paciente. Nivel de evidencia V; Reporte de caso.

Caracterización y asociación clínico bacteriológica en la espondilodiscitis piógena / Bacteriological-clinical association and characterization in Pyogenic Spondylodiscitis

Resumen: Objetivo: Determinar la asociación entre las características clínicas y estudios de laboratorio con el tipo de microorganismo aislado en hemocultivos de pacientes con espondilodiscitis piógena. Material y métodos: Es un estudio transversal analítico, se revisaron expedientes clínicos de pacientes con espondilodiscitis piógena desde Enero de 2013 hasta Enero de 2017. Se realizó análisis descriptivo univariado usando frecuencias y porcentajes para variables cualitativas, medidas de tendencia central y dispersión para las cuantitativas. Análisis bivariado mediante prueba de χ2 o test exacto de Fisher. Análisis de variables cuantitativas mediante t Student o U de Mann-Whitney. Se usó coeficiente de correlación de Spearman. Considerando significancia estadística p < 0.05. Resultados: Se obtuvo una muestra de 34 pacientes, 20 (58%) fueron mujeres, mediana (Me) de edad 60 años (52-66). Se aisló en hemocultivos, bacterias Gram positivas 11 (32.4%) y Gram negativas 23 (67.6%). El microorganismo aislado más frecuente fue Escherichia coli 12 (35.3%). Los pacientes con espondilodiscitis por Gram negativas presentaron dolor leve y velocidad de sedimentación globular (VSG) Me 26 mm/hra P (18-36), los pacientes con espondilodiscitis por Gram positivas presentaron dolor severo y VSG Me 38 mm/h P (34-40) (p = 0.000 y 0.028, respectivamente). La VSG y dolor en el grupo de pacientes con espondilodiscitis por bacterias Gram negativas tuvo un coeficiente de correlación de Spearman moderado 0.418, (p = 0.047); en el grupo de Gram positivas, un coeficiente de correlación de Spearman bajo 0.228, (p = 0.507). Conclusión: Existe una asociación clínica y estadística de manera significativa entre los tipos de microorganismo aislado en hemocultivo, la intensidad del dolor valorado en escala visual análoga (EVA) y los niveles de VSG.

Abstract: Objective: Determine the association between clinical characteristics and laboratory studies with the type of isolated microorganism in blood cultures of patients with Pyogenic Spondylodiscitis. Material and methods: It is a cross-analytical study, clinical records of patients with Pyogenic Spondylodiscitis were reviewed from January 2013 to January 2017. Univariate descriptive analysis was performed using frequencies and percentages for qualitative variables, central trend measures and dispersion for quantitative ones. Bivariate analysis by testing of χ2 or Fisher's exact test. Analysis of quantitative variables using T Student or Mann-Whitney U. Spearman's correlation coefficient was used. Considering statistical significance p < 0.05. Results: A sample of 34 patients was obtained, 20 (58%) were women, median (Me) of age 60 years (52-66). Was isolated into blood cultures, Gram-positive bacteria 11 (32.4%) gram negatives 23 (67.6%). The microorganism most common isolate was Escherichia coli 12 (35.3%). Patients with Gram-negative spondylodiscitis had mild pain and globular sedimentation rate (VSG) Me 26 mm/hra P (18-36), patients with Gram-positive spondylodyscitis had severe pain and VSG Me 38 mm/h P (34-40) (p= 0.000 and 0.028, respectively). VSG and pain in the group of patients with gram-negative bacteria spondylodiscitis had a moderate Spearman correlation coefficient of 0.418, (p = 0.047); in the Gram positives group, a low correlation coefficient of Spearman 0.228, (p = 0.507). Conclusion: There is a clinical and statistical association significant between types of isolated microorganism in blood culture, pain intensity valued on analog visual scale (EVA) and VSG levels.

Espondilodiscitis por Kingella kingae: A propósito de un caso de presentación atípica / Atypical presentation of Spondylodiscitis by Kingella Kingae: a case report

La espondilodiscitis infecciosa es una infección poco frecuente en niños, con mayor incidencia en menores de 6 años. Se presenta el caso de una paciente de 8 años, que se internó por dolor lumbar de 2 meses de evolución, afebril. La radiografía, tomografía e imagen por resonancia magnética nuclear fueron compatibles con espondilodiscitis a nivel de L4-L5. Luego de 10 días de antibioticoterapia empírica con clindamicina, con regular respuesta, se realizó punción ósea y se aisló Kingella kingae. Existe un aumento en la incidencia de infecciones osteoarticulares por Kingella kingae en lactantes y niños pequeños. La reemergencia en los últimos años se justifica por la optimización en las técnicas de cultivo, el uso de sistemas automatizados y de técnicas moleculares de diagnóstico. Kingella kingae es un patógeno que ha adquirido importancia en los últimos años en las infecciones osteoarticulares.

Infectious Spondylodiscitis is a rare infection in children. It is more frequent in patients under 6 years of age. We report the case of an 8-year-old patient with lumbar pain for 2 months, without fever. Xrays, computed tomography and magnetic resonance imaging all three showed spondylodiscitis L4-L5. After a 10-day antibiotic treatment with clindamycin with regular response, a bone puncture was performed isolating Kingella kingae (Kk). Ostearticular infections caused by Kk have increased among infants and children. Due to improvement in culture techniques, the usage of automatic systems and assessment molecular techniques, these infections re-emerged in the past few years. Kk is a pathogen that has lately become significant in osteoarticular infections.

Spondylodiscitis with Extensive Spine Involvement ­ Case Report

Spondylodiscitis consists of an inflammatory process of infectious origin that affects primarily the intervertebral disc and spreads to the adjacent vertebral bodies, often evolving into osteomyelitis, with consequent associated neurological damage. The diagnosis is often delayed, with an average of 2 to 6 months between the appearance of the first symptoms and the confirmation of the disease. Therefore, the laboratorial and imaging exams play an important role in the diagnosis of spondylodiscitis, as well as in the orientation for the treatment to be followed (conservative or surgical). We report a case of extensive involvement of the spine and discuss about the epidemiology of the disease, its diagnosis, and therapeutic principles.

Comparative Analysis of Spontaneous Infectious Spondylitis : Pyogenic versus Tuberculous

OBJECTIVE: Spondylitis is often chemotherapy resistant and requires long-term treatment. Without adequate chemotherapy, the outcome can be fatal or result in severe neurologic damage. Therefore, differentiating the etiology of spondylitis is very important, particularly in spontaneous cases. As the prevalence of tuberculosis in Korea has decreased in recent years, updated clinical research about spondylitis is warranted. METHODS: From April 2010 to March 2016, data from spondylitis patients were collected retrospectively. In total, 69 patients (51 with pyogenic spondylitis and 18 with tuberculous spondylitis) were included. Clinical data, laboratory findings including erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) level, measurements of Cobb angles at the initial and final follow-up, and radiologic features on magnetic resonance imaging (MRI) scans were evaluated. To test differences between the pyogenic and tuberculous groups, numerical data were compared using the student’s t-test and Mann-Whitney U test, and categorical data were compared using the chi-square test and Fisher’s exact test. RESULTS: The patients’ mean age was 60.0 years. Male sex was slightly predominant (56.5%). There was no difference in mean age and sex between the two groups. The pyogenic group had a relatively higher proportion of immunocompromised patients. The peak CRP value was higher in the pyogenic group than in the tuberculous group (14.08 mg/dL and 8.50 mg/dL, respectively, p=0.009), whereas the ESR was not significantly different between the groups (81.5 mm/h and 75.6 mm/h, respectively, p=0.442). Radiologically, the presence of disc space sparing and vertebral body collapse differed between the groups. In the tuberculous group, the disc was more commonly preserved on contrast-enhanced MRI (50% and 23.5%, respectively, p=0.044), and vertebral body collapse was more common (66.6% and 15.7%, respectively, p < 0.001). The mean length of hospitalization was longer in the pyogenic group (56.5 days and 41.2 days, respectively, p=0.001). Four mortality cases were observed only in the pyogenic group. The most commonly isolated microorganism in the pyogenic group was Staphylococcus aureus (S. aureus) (methicillin susceptible S. aureus and methicillin resistant S. aureus [MRSA] in 8 and 4 cases, respectively). CONCLUSION: The clinical and radiological manifestations of spontaneous spondylitis differ based on the causative organism. Pyogenic spondylitis patients tend to have a higher CRP level and a more severe clinical course, whereas tuberculous spondylitis patients present with destruction of the vertebral body with disc sparing more frequently. The presence of MRSA is increasing in community-acquired spondylitis cases.

Comparative Analysis of Spontaneous Infectious Spondylitis : Pyogenic versus Tuberculous

OBJECTIVE: Spondylitis is often chemotherapy resistant and requires long-term treatment. Without adequate chemotherapy, the outcome can be fatal or result in severe neurologic damage. Therefore, differentiating the etiology of spondylitis is very important, particularly in spontaneous cases. As the prevalence of tuberculosis in Korea has decreased in recent years, updated clinical research about spondylitis is warranted.METHODS: From April 2010 to March 2016, data from spondylitis patients were collected retrospectively. In total, 69 patients (51 with pyogenic spondylitis and 18 with tuberculous spondylitis) were included. Clinical data, laboratory findings including erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) level, measurements of Cobb angles at the initial and final follow-up, and radiologic features on magnetic resonance imaging (MRI) scans were evaluated. To test differences between the pyogenic and tuberculous groups, numerical data were compared using the student’s t-test and Mann-Whitney U test, and categorical data were compared using the chi-square test and Fisher’s exact test.RESULTS: The patients’ mean age was 60.0 years. Male sex was slightly predominant (56.5%). There was no difference in mean age and sex between the two groups. The pyogenic group had a relatively higher proportion of immunocompromised patients. The peak CRP value was higher in the pyogenic group than in the tuberculous group (14.08 mg/dL and 8.50 mg/dL, respectively, p=0.009), whereas the ESR was not significantly different between the groups (81.5 mm/h and 75.6 mm/h, respectively, p=0.442). Radiologically, the presence of disc space sparing and vertebral body collapse differed between the groups. In the tuberculous group, the disc was more commonly preserved on contrast-enhanced MRI (50% and 23.5%, respectively, p=0.044), and vertebral body collapse was more common (66.6% and 15.7%, respectively, p < 0.001). The mean length of hospitalization was longer in the pyogenic group (56.5 days and 41.2 days, respectively, p=0.001). Four mortality cases were observed only in the pyogenic group. The most commonly isolated microorganism in the pyogenic group was Staphylococcus aureus (S. aureus) (methicillin susceptible S. aureus and methicillin resistant S. aureus [MRSA] in 8 and 4 cases, respectively).CONCLUSION: The clinical and radiological manifestations of spontaneous spondylitis differ based on the causative organism. Pyogenic spondylitis patients tend to have a higher CRP level and a more severe clinical course, whereas tuberculous spondylitis patients present with destruction of the vertebral body with disc sparing more frequently. The presence of MRSA is increasing in community-acquired spondylitis cases.

Percutaneous S2-alar-iliac screw fixation for lower lumbar spondylodiscitis with no neurological symptoms in elderly patients: analysis of short-term curative effect / 介入放射学杂志

Objective To evaluate the short-term efficacy of percutaneous S2-alar-iliac screw (S2AIS) fixation for the treatment of lower lumbar spondylodiscitis with no neurological symptoms in elderly patients.Methods The clinical data of 28 patients of lower lumbar spondylodiscitis with no neurological symptoms,who were admitted to the Ward of Spine,Department of Orthopaedics,General Hospital of Shenyang Military Region,China,to receive percutaneous S2AIS fixation,were retrospectively analyzed.The operation was performed by the same surgeon for all patients.A total of 56 S2AIS fixation procedures were accomplished.The patients' age varied from 71 to 79 years old.The spondylodiscitis was located at IAL5 or L5-S1.After the treatment,the patients were followed up for a mean of 6.67 months.The mean operative time,the amount of intraoperative blood loss,the postoperative bed time,the average hospitalization days and the postoperative wound healing were documented and analyzed.The Oswestry score,visual analogue score,erythrocyte sedimentation rate,C reactive protein level were determined before operation as well as at one week and 6 months after operation,and postoperative CT was performed to check the loosening of internal screw fixation.The results were compared and analyzed.Results The mean operative time was (158.12±4.32) min,the average amount of intraoperative blood loss was (25.34±3.23) ml,the average postoperative bed time was (1.34±0.35) d,and the average hospitalization time was (7.29±1.34) d.Poor surgical incision healing was seen in only one patient,and the postoperative wound healing rate was up to 96.42％.Loosening of right S2AIS was detected in one patient,with the screw loosening rate being 1.79％.The Oswestry scores determined at one week and 6 months after treatment were 32.21 and 23.20 respectively,which were significantly different from the preoperative score (P＜0.05).The visual analogue scores determined at one week and 6 months after treatment were 2.17 and 1.25 respectively,which were significantly different from the preoperative score (P＜0.05).At one week and 6 months after treatment,the erythrocyte sedimentation rates were 15.32 mm/h and 14.56 mm/h respectively,and the C reactive protein levels were 7.89 mg/L and 8.90 mg/L respectively,both of which were significantly different from the preoperative ones (both P＜0.05).Conclusion For the treatment of lower lumbar spondylodiscitis with no neurological symptoms in elderly patients,percutaneous S2AIS fixation has certain advantages,such as less trauma,less blood loss,early postoperative ambulation,remarkable improvement of clinical symptoms,etc.with satisfactory short-term clinical efficacy.

Streptococcus Constellatus Spondylodiscitis in a Teenager: A Case Report

Streptococcus constellatus is an extremely rare cause of pyogenic spondylodiscitis. Literature search yielded only one case report in an elderly 72 years old man with spontaneous T10-T11 S. constellatus spondylodiscitis. It is virtually unheard of in young teenage. We report the case of a 14 years old male teenager who presented with worsening low back pain for one year with no neurological deficit. Imaging studies were consistent with features of L4-L5 spondylodiscitis. CT guided biopsy grew a pure culture of streptococcus constellatus sensitive to penicillin and erythromycin. He showed full recovery with six weeks of intravenous antibiotics. Due to the insidious onset, this case highlight the importance of high clinical suspicion and early diagnosis, with image guided biopsy followed by treatment with appropriate intravenous antibiotics to enable full recovery without further neurological deterioration.

Delayed Spondylodiscitis Presenting as a Skip Lesion

Spondylodiscitis is believed to be caused by an infection that affects vertebral bodies and the intervening intervertebral disc. Usually, typical spondylodiscitis involves a mobile vertebra-disc-vertebra unit, and in most cases, the condition is managed successfully by surgical intervention and intravenous antibiotic therapy. Here, the authors report an unusual case of a spondylodiscitis presenting as a skip lesion, which progressed from L4/L5 to L1/L2, despite open surgical biopsy and empirical intravenous antibiotics. Possible pathogenic mechanisms of this unique case are discussed and a review of the pertinent literature is included.

Espondilodiscitis secundaria a herida por arma blanca / Spondylodiscitis Secondary to Stab Wound

La Espondilodiscitis es una de las formas de presentación de procesos infecciosos en el raquis. Se puede observar en pacientes inmunodeprimidos o secundaria a intervenciones locales como bloqueos o procederes de mínimo acceso sobre la columna. Teniendo en cuenta la inusual aparición de la espondilodiscitis secundaria a traumas punzantes, y a la presencia de signos imagenológicos tempranos capaces de mostrar la propagación de la infección desde el sitio de la lesión hasta el segmento vertebral, se presenta este caso de espondilodiscitis secundaria a herida por arma blanca. Se presenta un paciente masculino de 48 años de edad con antecedentes de salud anterior, que sufrió una herida por arma blanca en la región lumbar izquierda, posterior al trauma comenzó a presentar dolor en columna lumbar e impotencia funcional absoluta. Se le realizan estudios de laboratorio y de imágenes. Los parámetros hematológicos inclinaban al diagnóstico de un proceso infeccioso en la columna y la Resonancia Magnética Nuclear evidenció una espondilodiscitis lumbar, así como el trayecto fistuloso de la infección desde la piel hasta el segmento afectado. El tratamiento consistió en la administración de antibióticos e inmovilización con un corsé por 6 meses. El paciente presentó mejoría de los síntomas a las 3 semanas, con alivio total del dolor al mes. Los resultados hematológicos mejoraron paulatinamente hasta alcanzar la normalidad a los 6 meses. La Espondilodiscitis producida por herida de arma blanca constituye una condición infrecuente, pero debe ser sospechada en todo paciente que sufra este tipo de lesión(AU)

Spondylodiscitis is one of the forms of presentation of infectious processes in the rachis. It can be observed in immunocompromised patients or secondary to local interventions such as blockages or procedures of minimal access to the spine. Given the unusual occurrence of spondylodiscitis secondary to sharp trauma, and the presence of early imaging signs capable of showing the spread of the infection from the site of the lesion to the vertebral segment, a case of spondylodiscitis secondary to stab injury is presented. We report a 48-year-old male patient with previous health history, who suffered a stab wound in the left lumbar region. After trauma, he began to present pain in the lumbar spine and absolute functional impotence. Laboratory and imaging studies are performed. The hematological parameters inclined to the diagnosis of an infectious process in the column and the nuclear magnetic resonance evidenced lumbar spondylodiscitis, as well as the fistulous path of the infection from the skin to the affected segment. Treatment consisted of administration of antibiotics and immobilization with a corset during 6 months. The patient presented improvement of symptoms at 3 weeks, with total pain relief at one month. The hematological results gradually improved until reaching normality at 6 months. Spondylodiscitis produced by knife wounding is uncommon condition, but it should be suspected in any patient suffering from this type of injury(AU)

Actualidades en infecciones vertebrales / Actualités sur les infections vertébrales / News on Vertebral Infections

Introducción: las infecciones vertebrales constituyen una afección de baja incidencia, pero con incremento importante en años recientes, el cual está en relación con una población más susceptible por diversas razones. A pesar de nuevos métodos para el diagnóstico, la demora constituye un importante problema. Propósito: revisar y discutir algunos temas actuales acerca de las infecciones vertebrales, la epidemiologia, etiología, fisiopatología, diagnóstico y tipos de tratamientos. Método: se seleccionó la literatura apropiada usando las bases de datos Pubmed, Hinari y Clinical Key. Resultados: la literatura muestra la importancia del correcto y rápido diagnóstico; determinar el agente causal es de primordial importancia para aplicar una adecuada terapia antimicrobiana. El tratamiento conservador produce, generalmente, buenos resultados y el quirúrgico está indicado en déficit o sepsis neurológicos, inestabilidad espinal y/o deformidad y fallo del tratamiento conservador. Se muestra algoritmo para diagnóstico y tratamiento. Conclusiones: aplicar una metodología correcta para el diagnóstico y tratamiento de las infecciones vertebrales, logra resultados satisfactorios(AU)

Introduction: vertebral infections are a disease of low incidence, but with significant increase in recent years. This increase is related to a more susceptible population due to various reasons. Despite the new methods for diagnosis, its delay is a major problem. Objective: review and discuss some current issues about the spine infections, epidemiology, etiology, pathophysiology, diagnosis and types of treatment. Method: select the appropriate literature using PubMed database, Hinari and Clinical Key. Results: the literature shows the importance of correct and rapid diagnosis, which determine the causal agent, is primordial to implement appropriate antimicrobial therapy. Conservative treatment generally produces good results and surgery is indicated in neurological deficit or sepsis, spinal instability and / or deformity and failure of conservative treatment. Diagnostic and treatment algorithm is shown. Conclusions: applying correct methodology for the diagnosis and treatment of spinal infection, satisfactory results are achieved(AU)

Introduction: les infections vertébrales sont des affections à faible incidence, mais d'un récent accroissement important. Cette augmentation est associée à une population plus sensible pour des raisons diverses. Malgré les nouvelles méthodes diagnostiques, le retard constitue un problème important. Objectif: le but de cette étude est d'examiner et discuter des questions actuelles sur les infections vertébrales, leur épidémiologie, leur étiologie, leur physiopathologie, leur diagnostic, et les types de traitement. Méthode: on a sélectionné une littérature appropriée au moyen des bases de données de PubMed, Hinari et Clinical Key. Résultats: la littérature montre l'importance d'un diagnostic correct et précoce; la définition de l'agent causal est d'une importance essentielle pour appliquer une adéquate thérapie antimicrobienne. En général, le traitement conservateur a de bons résultats, mais le traitement chirurgical est indiqué en cas de déficit ou sepsis neurologiques, d'instabilité et/ou déformation rachidienne, et d'échec du traitement conservateur. Un algorithme est présenté pour le diagnostic et le traitement. Conclusions: l'application d'une correcte méthodologie pour le diagnostic et le traitement des infections vertébrales assure des résultats satisfaisants(AU)