Case Prep: Vertebral Osteomyelitis / Discitis — Surgical Management

Case / Approach Snapshot

• Anatomy at risk: the named neural, vascular, bony, CSF, and soft-tissue structures that determine the safe corridor and likely morbidity.
• Operative steps: confirm indication and imaging, position and expose deliberately, complete the core surgical maneuver, verify the result, and close with a complication-prevention plan; use the detailed operative sequence and approach notes below as the step-by-step source.
• Rescue plans: bleeding, neurologic change, wrong target or level, CSF leak, infection, hardware or reconstruction failure, and a staged or alternate-treatment plan.
• Figures: review Figures, Imaging & Video and the Curated Image Set; embedded local figures should remain open-access, public-domain, or otherwise reusable with attribution.
• Papers: review High-Yield Literature for seminal sources, modern reviews, and outcome data specific to this page.

One-Liner

[Age]yo [M/F] with [pyogenic/tuberculous] vertebral osteomyelitis-discitis at [T_/L_] [with epidural abscess / deformity / instability / deficit] planned for [biopsy / debridement, decompression, and reconstruction].

Figures, Imaging & Video

🎥 Operative video — search operative video on YouTube ▸ · The Neurosurgical Atlas ▸

🧭 Operative approach: Posterior thoracolumbar approach and transthoracic approach — posterior stabilization versus anterior debridement/reconstruction depends on level and column failure.

Neurosurgical Atlas · AO Spine / Surgery Reference · Radiopaedia · PubMed Central — operative figures © linked; see media-sources.md

High-Yield Literature

• Microbial etiology of vertebral osteomyelitis/discitis amid the opioid epidemic — Ammerman SA. Journal of neurosurgery. Spine 2024. PubMed
• Posterior Fixation Without Debridement for Vertebral Body Osteomyelitis and Discitis: A 10-Year Retrospective Review — Lindsay SE. International journal of spine surgery 2023. PubMed
• Clinical prediction for surgical versus nonsurgical interventions in patients with vertebral osteomyelitis and discitis — Lee J. Journal of spine surgery (Hong Kong) 2024. PubMed
• Vertebral Osteomyelitis, Discitis, and Epidural Abscess: A Rare Complication of Cardiobacterium Endocarditis — Yadava SK. Journal of investigative medicine high impact case reports 2018. PubMed
• Management Outcomes after Image-Guided Percutaneous Biopsy for Suspected Vertebral Osteomyelitis-Discitis — Malik DG. AJNR. American journal of neuroradiology 2025. PubMed
• Preclinical models of vertebral osteomyelitis and associated infections: Current models and recommendations for study design — Joyce K. JOR spine 2021. PubMed
• Enterobacter cloacae as sole organism responsible for vertebral osteomyelitis/discitis and vertebral collapse in a patient with intravenous drug abuse — Khine S. BMJ case reports 2023. PubMed
• Management of Refractory Post-operative Osteomyelitis and Discitis: A Case Report — DeLong CA. Cureus 2024. PubMed
• Case report: vertebral osteomyelitis/discitis as a complication of Capnocytophaga canimorsus bacteremia — Nelson MJ. The Journal of emergency medicine 2008. PubMed
• Group B Streptococcus vertebral osteomyelitis-discitis in an immunocompetent adolescent — Trehan I. The Pediatric infectious disease journal 2009. PubMed

Curated Image Set

Open-access figures are embedded from PubMed Central articles and kept unique to this guide.

Figure 1.. Magnetic resonance imaging: Discitis/osteomyelitis at L4-L5 with preservation of vertebral body height but an extension of infection into the epidural space, as well as anteriorly and… Source: Vertebral Osteomyelitis, Discitis, and Epidural Abscess: A Rare Complication of Cardiobacterium Endocarditis — Journal of Investigative Medicine High Impact Case Reports 2018; CC BY.

Figure 2.. Gram staining of vertebral biopsy, gram-negative rods. Source: Vertebral Osteomyelitis, Discitis, and Epidural Abscess: A Rare Complication of Cardiobacterium Endocarditis — Journal of Investigative Medicine High Impact Case Reports 2018; CC BY.

Figure 3. Source: Vertebral Osteomyelitis, Discitis, and Epidural Abscess: A Rare Complication of Cardiobacterium Endocarditis — J Investig Med High Impact Case Rep. 2018 Oct 28;6:2324709618807504. doi: 10.1177/2324709618807504; CC BY.

Fig. 1. At time of admission- Contrast Enhanced Computed Tomography (CECT) pelvis-axial section showing hypo dense collection concerning for bilateral psoas abscess (as black arrow). Source: A rare case of Streptococcus pyogenes vertebral osteomyelitis in a young, immunocompetent male — IDCases 2025; CC BY-NC-ND.

Fig. 2. Magnetic Resonance Imaging (MRI) lumbar spine with contrast –sagittal section revealing cortical erosions L3-L4 vertebral bodies with anterior epidural collection. Source: A rare case of Streptococcus pyogenes vertebral osteomyelitis in a young, immunocompetent male — IDCases 2025; CC BY-NC-ND.

Figure 2.. Patient biopsy findings in a subset of patients without blood cultures obtained. Abbreviations: -ve, negative; +ve, positive; HP, histopathology. Source: Culture Yield in the Diagnosis of Native Vertebral Osteomyelitis: A Single Tertiary Center Retrospective Case Series With Literature Review — Open Forum Infectious Diseases 2022; CC BY-NC-ND.

Fig. 1. Magnetic resonance imaging (MRI) of the lumbar spine demonstrating discitis and vertebral osteomyelitis. T1 post-contrast sagittal MRI demonstrating enhancement at the L3–4… Source: An unusual case of Cardiobacterium valvarum causing aortic endograft infection and osteomyelitis — Annals of Clinical Microbiology and Antimicrobials 2021; CC BY.

Fig. 2. Gram staining. Microscopic morphology in gram staining of blood culture after 96 h of aerobic incubation at 37 °C demonstrating bipolar-staining gram-negative bacilli. 16S ribosomal RNA… Source: An unusual case of Cardiobacterium valvarum causing aortic endograft infection and osteomyelitis — Annals of Clinical Microbiology and Antimicrobials 2021; CC BY.

Fig. 3. Positron emission tomography–computed tomography (PET/CT) of the chest. Hypermetabolic soft tissue (arrows) along the right lateral and anterior aspect of the ascending aortic endograft… Source: An unusual case of Cardiobacterium valvarum causing aortic endograft infection and osteomyelitis — Annals of Clinical Microbiology and Antimicrobials 2021; CC BY.

Figure 1. Pre-operative MRI Scan of Lumbar Spine, with Arrows Denoting L3/4 Disc HerniationPre-operative MRI demonstrating multilevel spondylosis and a focal disc herniation at L3-4. Source: Management of Refractory Post-operative Osteomyelitis and Discitis: A Case Report — Cureus 2024; CC BY.

History of Present Illness

• Chief complaint: Insidious severe focal back pain (often nocturnal, unrelenting), fever, malaise; ± neurological deficit, deformity
• Risk factors: IVDU, diabetes, immunocompromise, bacteremia, recent procedure, TB exposure (Pott disease)
• Duration (often delayed diagnosis), source of infection

Past Medical History

• IVDU, diabetes, immunocompromise, endocarditis, TB risk, brucella exposure, recent instrumentation
• Standard PMH

Imaging Review

MRI with contrast

• Disc + adjacent endplate/vertebral body involvement (T2 hyperintense disc/marrow, endplate destruction, enhancement) — distinguishes infection (crosses disc) from tumor (spares disc)
• Epidural/paraspinal/psoas abscess, cord/thecal compression, vertebral collapse, deformity (kyphosis)
• TB: large paraspinal/psoas abscess, multilevel, relative disc sparing, subligamentous spread, gibbus

  CT

• Bony destruction, instability, deformity, fusion planning, CT-guided biopsy target

  X-ray (alignment, deformity)

Labs

• Blood cultures, CBC, ESR/CRP (trend), BMP, Coags, type and screen
• CT-guided biopsy (organism — before antibiotics if stable), AFB/fungal/brucella, HIV, glucose/HbA1c
• Quantiferon/PPD (TB)

Neurological Examination

• Motor/sensory (level), reflexes, sphincter, gait, spinal deformity/tenderness

Surgical Planning

Case Logistics, OR Needs & Orders

• OR table/bed: radiolucent spine-capable table selected for approach, imaging, instrumentation, patient size, and alignment goals; keep abdomen free for prone cases.
• OR setup: fluoroscopy/navigation, decompression and instrumentation trays, culture swabs/containers for aerobic/anaerobic/fungal/AFB studies, drain, and blood availability for multilevel debridement or corpectomy.
• Special needs: antibiotic timing coordinated with cultures unless unstable, ID consult plan, arterial line if septic or major deformity/corpectomy, MAP support for cord compromise, and hardware strategy in contaminated fields.
• Immediate postop orders: neuro checks, organism-directed antibiotics, drain/wound care, ESR/CRP and culture follow-up, CT/X-rays when hardware placed, brace/activity, DVT timing, and nutrition/glycemic optimization.

Diagnosis & Indication

• Most pyogenic osteomyelitis/discitis is treated medically (CT-guided biopsy for organism + 6+ weeks IV antibiotics + bracing)
• Surgical indications: neurological deficit/cord compression (epidural abscess), instability/deformity/progressive collapse, failure of medical therapy, need for open biopsy (non-diagnostic aspirate), intractable pain from instability, significant bony destruction
• Goals: debride infection, decompress, restore stability/alignment, obtain definitive cultures

Medical Versus Operative Decision

• Before incision, define the driver: neurologic compression, sepsis/source control, mechanical instability, progressive kyphosis, uncontrolled pain, organism diagnosis, or failure of antibiotics.
• Stable neurologically intact patients often need biopsy, cultures, bracing, and ID-directed antibiotics rather than urgent instrumentation.
• Hold antibiotics until cultures when the patient is stable; do not delay antibiotics for culture purity in sepsis, neurologic decline, or epidural abscess with systemic illness.
• Screen for organism clues: IV drug use, dialysis, immunosuppression, TB/endemic exposure, brucella exposure, recent bacteremia/endocarditis, urinary source, and prior spine surgery/hardware.

Reconstruction Strategy

• Instrumentation can be appropriate in an infected field when instability/deformity demands it; eradication depends more on debridement, stability, and organism-directed therapy than on avoiding metal.
• Anterior debridement/reconstruction best addresses disc/body destruction and kyphosis; posterior fixation best provides stability and deformity control; combined/staged approaches are common when both are needed.
• Plan biopsy and culture labels before antibiotics in the room: multiple deep tissue samples, not swabs, with aerobic/anaerobic/fungal/AFB/pathology as indicated.

Position & Approach

• Anterior (debride infected disc/body, reconstruct anterior column) ± posterior instrumentation (stabilize, correct deformity); or posterolateral/combined
• Lateral (thoracic, lung deflation) or prone (posterior); IONM baseline

Key Surgical Steps

1. Obtain cultures/biopsy first (multiple samples: aerobic, anaerobic, fungal, AFB, path)
2. Debride infected disc, necrotic bone, abscess (anterior column); decompress neural elements
3. Anterior reconstruction: structural graft (autograft/allograft) or cage (titanium acceptable in infection) to restore the anterior column and correct kyphosis
4. Posterior instrumented fusion (often staged/combined) for stability and deformity correction
5. Copious irrigation; consider local antibiotics; drain
6. Closure

Critical Anatomy & Structures at Risk

1. Spinal cord/thecal sac (compression, deformity)
2. Great vessels/segmental arteries (anterior), Adamkiewicz (thoracolumbar)
3. Dura (CSF leak), spinal stability/alignment

Equipment

• Culture media (incl. AFB/fungal/brucella), debridement instruments, copious irrigation
• Anterior reconstruction (cage/graft) + instrumentation, fluoroscopy/navigation
• Microscope, drain, vascular backup (anterior)

Monitoring

• SSEPs, MEPs (deficit/deformity)

Anesthesia

• Sepsis/MAP management, lung isolation (anterior thoracic), arterial line, crossmatch, antibiotic timing vs cultures

Potential Complications

1. Persistent/recurrent infection (inadequate debridement), sepsis
2. Hardware infection/failure, pseudarthrosis, progressive deformity
3. Neurological injury, CSF leak, vascular/pulmonary (anterior)

Rescue and Follow-Up Logic

• Culture-negative infection: confirm antibiotics were held if safe, review pathology, consider repeat biopsy/open biopsy, and broaden workup for TB/fungal/brucella/malignancy before committing to empiric long courses.
• Neurologic decline on antibiotics: urgent MRI for epidural abscess, deformity, or collapse; medical therapy does not protect the cord from mechanical compression.
• Persistent bacteremia: search for endocarditis, line infection, psoas/paraspinal abscess, infected hardware, and inadequate source control.
• Progressive kyphosis/collapse: reassess stability and alignment even if inflammatory markers improve; pain and deformity can be mechanical treatment failures.
• Hardware concern in infection: distinguish expected postoperative enhancement from loosening, abscess, or nonunion using symptoms, ESR/CRP trend, CT, MRI with metal reduction, and organism status.

Operative Note Template

Preoperative Diagnosis: [Pyogenic/tuberculous] vertebral osteomyelitis-discitis at [T_/L_] [with epidural abscess/deformity/instability/deficit]

Postoperative Diagnosis: Same

Procedure: [Anterior debridement, decompression and reconstruction / Posterior instrumented fusion / Combined] for vertebral osteomyelitis-discitis at [level]

Surgeon / Assistant: Anesthesia: General endotracheal [lung isolation if anterior thoracic] EBL / Fluids / Blood products: [crossmatched] Adjuncts: Fluoroscopy/navigation; SSEP/MEP; culture media (incl. AFB/fungal/brucella); MAP support Implants: Anterior cage/graft + instrumentation [titanium acceptable in infection], drain Complications: None

Indications: [Age]yo [M/F] with vertebral osteomyelitis-discitis at [level] with [neurological deficit/instability/deformity/failed medical therapy], indicating surgery. Risks discussed.

Description of Procedure: After consent and time-out, general anesthesia was induced [with lung isolation for the anterior thoracic approach] and neuromonitoring established. Multiple cultures/biopsies (aerobic, anaerobic, fungal, AFB) were obtained. The infected disc and necrotic bone were debrided and the neural elements decompressed. [Anterior reconstruction was performed with a structural graft/cage to restore the anterior column and correct kyphosis.] [Posterior instrumented fusion provided stability and deformity correction.] The field was copiously irrigated and a drain placed.

Closure was performed. The patient was transferred with ID-directed IV antibiotics (prolonged; multidrug for TB), serial neuro exams, and inflammatory-marker trending.

Postoperative Plan

• ICU/floor, neuro checks, ID consult — organism-directed IV antibiotics 6+ weeks (longer for TB — multidrug), trend ESR/CRP
• CT/X-ray (hardware, alignment, fusion), brace per surgeon
• DVT prophylaxis, address risk factors (glucose, addiction medicine), nutrition
• Monitor for recurrence/instability; follow-up imaging and labs; rehab

Chief-Level Case Review

Use these as the senior-level mental model for Vertebral Osteomyelitis / Discitis — Surgical Management:

• Decision point: Localize twice and instrument once: numbering, transitional anatomy, prior hardware, rib count, navigation dataset, and fluoroscopic level confirmation are mandatory.
• Technical lever: Positioning is treatment: table choice, abdomen-free prone setup, alignment goals, shoulders/hips, eyes/plexus pressure, neuromonitoring baselines, and fluoroscopic access all change the case.
• Bailout: Protect neural elements by sequence: decompression before correction when needed, MAP support for cord risk, no long paralytic with MEPs, and immediate response to signal change.
• Postop watch: Finish with construct logic: decompression adequacy, screw purchase, alignment, fusion bed/graft, drain plan, brace/activity orders, postop CT/X-rays, and DVT timing.

Common Pimp Questions

Use these to pressure-test preparation for Vertebral Osteomyelitis / Discitis — Surgical Management:

1. What neurologic level and root are responsible for the presenting deficit?
2. What is the decompression target and how will you know it is adequately decompressed?
3. What instability, deformity, bone-quality, or fusion variable changes the construct?
4. What vascular, visceral, dural, or neural structure is the main structure at risk?
5. What postop brace, drain, mobilization, MAP, antibiotic, and DVT plan should be ordered?

Attending Preference Variables

Items that commonly vary by surgeon or institution:

• Positioning frame, arms, traction, and localization workflow: [attending-specific]
• Navigation/robot/fluoro use, screw system, graft/biologic choice, and drain threshold: [attending-specific]
• Neuromonitoring modality and MAP goal for myelopathy, deformity, or cord-risk cases: [attending-specific]
• Brace, Foley, antibiotics, mobilization, and DVT prophylaxis timing: [attending-specific]