UNASSIGNED: Surgical treatment of spinal infections, refractory to medical treatments, is increasing in incidence. Here, we present a unique case of discitis secondary to an iatrogenic cause, spinal steroid injection, that resulted in acute neurology, ventral phlegmon, and osteomyelitis requiring multiple surgical interventions for treatment.
UNASSIGNED: With the adoption of minimally invasive spinal surgery, the patient underwent full endoscopic debridement and decompression at our hospital. The endoscopic technique offers a unique avenue to the anatomically difficult ventral phlegmon for surgical excision, cultures, and pathogen identification. The endoscopic debridement was paired with percutaneous pedicle screw fixation to stabilize the spine from the worsening bone destruction.
UNASSIGNED: The patient recovered well postoperatively, with the resolution of her neurological symptoms and improved mobility.
UNASSIGNED: Full endoscopic spinal debridement and decompression is a powerful tool to manage severe spinal discitis and preliminary studies encourage its adoption in surgical practices.

OBJECTIVE: Single-shot echo-planar imaging (ss-EPI) has limited application in vertebral column imaging due to numerous artifacts. Therefore, we aimed to compare readout-segmented echo-planar imaging (rs-EPI) to ss-EPI and assess its value in the differential diagnosis of vertebral infectious, tumoral infiltrative, and degenerative disorders.
METHODS: Sixty-six adult patients with spondylodiscitis (SD, n = 26), tumoral infiltration (TI, n = 20), or Modic type I degeneration (DE, n = 20) findings on spinal magnetic resonance imaging (MRI) included in this retrospective study. Two radiologists scored images for quality on a 4-point scale (image resolution, degree of geometric distortion, lesion selectivity, and diagnostic reliability) and measured signal intensity (SI), apparent diffusion coefficient (ADC), signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). DE and SD groups also united to form the benign group.
RESULTS: In all groups, rs-EPI performed better than ss-EPI in image quality, SNR, and CNR (p < .05). The difference between mean pathological ADC (ADCP) in the two sequences was statistically significant (p < .05). There was no significant difference between the groups in terms of ADCP in rs-EPI (p = .229), unlike ss-EPI (p = .025). Pathological SI (SIP) and CNR in rs-EPI were significantly higher in the malignant group than benign group (p = .002, p < .001). In rs-EPI, no significant difference was found between malignant and benign groups\' ADCP (p = .13).
CONCLUSIONS: The rs-EPI is a diffusion-weighted imaging (DWI) method with higher image quality that diminishes motion-induced phase errors and increases resolution through phase corrections. However, the distinction of malignant and benign vertebral bone marrow pathologies is unsatisfactory for rs-EPI compared with ss-EPI.

Pyogenic spondylodiscitis is uncommon and usually presents in the setting of immunosuppression. Streptococcus anginosus group are opportunistic pathogens that rarely cause this infection. We present a case of an immunocompetent 45-year-old male with extreme lower back pain, not even relieved by opioids. A magnetic resonance imaging done the day before arrival showed multiple lumbar disk degeneration and lumbar spondylosis. Initial examinations did not show significant alteration. During inpatient admission, his values of erythrocyte sedimentation rate and C-reactive protein increased, and a new magnetic resonance imaging with contrast revealed signs of spondylodiscitis at the L2-L3 level. He underwent open surgery for tissue sampling and stabilization of the affected segment. Blood culture, disk sampling culture, and myeloculture were positive for S. anginosus. Additional examinations were negative for immunosuppression or any underlying condition, and the dental evaluation only showed mild gingivitis. The patient received intravenous antibiotics, and the pain significantly improved after surgery. He was finally discharged and completed 8 weeks of antibiotics. The erythrocyte sedimentation rate and C-reactive protein values were normal 6 weeks after surgery, and on a 1-year follow-up, the magnetic resonance imaging showed stable post-surgical changes with no signs of infection.

BACKGROUND: A novel pelvic fixation screw fusion device (iFuse Bedrock Granite implant) was designed to promote bony fusion through self-harvesting fenestrations throughout the outer screw shank. Bone on-growth and in-growth using this design have been demonstrated in a sheep model, but data from human subjects have not been reported. A 66-year-old medically complex female with 2 prior spine fusions developed spondylodiscitis cephalad to a prior fusion, requiring the removal of instrumentation, which included screw fusion devices.
METHODS: Within this case report, the authors present a novel bone-preserving technique for the removal of well-fixed screw fusion devices. One screw backed out with a driver, and the other 3 had to be trephined out. One screw sheared off the T30 torque driver, implying a removal torque greater than 270 inch-lbs (30.5 Nm). In addition, the removed implants were analyzed using microcomputed tomography (micro-CT) and demonstrated bone on-growth, in-growth, and through-growth in all 4 screws.
CONCLUSIONS: Micro-CT clearly demonstrated osseous integration of the screw fusion devices and provided significant support for the use of these implants for lumbopelvic fixation. The authors\' hope is that the novel bone-preserving technique will help other surgeons when faced with the difficult removal of well-fixed screw fusion devices. https://thejns.org/doi/10.3171/CASE24274.

UNASSIGNED: Spontaneous non-specific pyogenic spondylodiscitis (SNPS) is a rare medical condition, whose optimal treatment remains controversial. We evaluated the multidisciplinary protocol implemented at our department for the conservative treatment of patients with SNPS.
UNASSIGNED: Patients with lumbar or thoracic SNPS, whose treatment was initiated conservatively and had at least six months of follow-up, were enrolled in this retrospective audit study. Patients with specific, postoperative, or iatrogenic spondylodiscitis or necessitating immediate operative treatment were excluded. The location of the infection, initial symptoms, co-morbidities, pathogens, duration of antibiotic treatment, hospitalization and follow-up, and outcome were retrieved. The visual analogue scale (VAS) score was used to register pain improvement after treatment.
UNASSIGNED: Between January 2011 and December 2021, forty-seven patients (male: 26, mean age: 68.5 years) with SNPS (lumbar: 29, thoracic: 18) were hospitalized. The main co-morbidity was diabetes mellitus (23 patients). Pain was the predominant (46 patients), and fever was the second most common (19 patients) symptom. The most frequent causative microorganism was staphylococcus aureus (29 patients); no pathogen was identified in ten patients. The mean hospitalization duration for patients completing their conservative treatment (43/47) was 27 (range: 22-41) days. They received antibiotics for a mean period of 23 days intravenously (range: 21-29), 23.8 days per os (range: 21-35), and 46.8 days in total (range: 42-63). Conservative treatment was discontinued in two females. Two male patients died due to septic shock. The mean follow-up was 11.5 months (range: 6-15). During follow-up, no one developed any neurologic deficit and/or recurrence. There was a significant improvement in the mean VAS, from 8.3 ± 0.8 pre-treatment to 1.6 ± 0.5 at the latest follow-up (p <0.001).
UNASSIGNED: Although treatment is gradually shifting towards surgical intervention, conservative therapeutic management of SNPS patients with antibiotic administration, bed rest, and careful mobilization remains a viable and efficacious option. HIPPOKRATIA 2023, 27 (2):106-111.

UNASSIGNED: Spondylodiscitis (SD) is an infection of the intervertebral disc with involvement of the adjacent vertebral bodies. Diagnostic tests with CT-guided biopsy only provide a positive yield in 14%-48% of cases. Percutaneous endoscopic debridement and drainage (PEDD) has recently shown promise in the treatment of spondylodiscitis.
UNASSIGNED: The purpose of this study is to determine differences in pathogen identification and clinical outcomes for PEDD versus CT-guided needle biopsy in SD patients.
UNASSIGNED: We conducted a systematic review of the literature using PRISMA guidelines to determine differences in positive microbiology results, perioperative complications, pain control, and long-term clinical outcomes for PEDD vs. CT-guided needle biopsy in SD patients.
UNASSIGNED: 1078 studies were evaluated, 87 of which underwent full review. 15 studies met the inclusion and exclusion criteria, including 7 PEDD, 7 CT-guided biopsy, and 1 CT-guided biopsy vs. PEDD article, for a total of 192 PEDD patients and 604 CT-guided biopsy patients. We found 36.59% of CT-guided biopsy patients had positive microbiology results, compared to 84.38% of PEDD patients. No major perioperative complications occurred as a result of the PEDD procedure. Of the five PEDD studies that reported pain outcomes, greater than 80% of patients experienced relief after intervention.
UNASSIGNED: These results suggest that PEDD may improve pathogen identification while simultaneously reducing pain compared to CT-guided needle biopsy in SD. Although current treatment guidelines recommend CT-guided biopsy, in patients with severe back pain and suspected SD, PEDD can be considered an alternative intervention.

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METHODS: Observational Study.
OBJECTIVE: Surgical site infections (SSIs) are one of the major complications in spine surgery. Numerous factors that increase the risk of SSI have been widely described. However, clinical guidelines on antibiotic prophylaxis are usually common for all patients. There are no specific guidelines for patients with a high risk of infection. The aim of this paper is to create a specific protocol for patients at high risk of SSI.
METHODS: This is a three-cohort study using a prospective database. Risk patients are those who meet at least two of the following criteria: obesity, diabetes, reoperation and immunosuppression. Between October 2021 and April 2023, 132 patients were recruited.They were divided into three cohorts: cohort A, 46 patients, standard prophylaxis with cefazolin 2 g/8 h for 24 h; cohort B, 46 patients, cefazolin 2 g/8h and amikacin 500 mg/12 h for 24 h; cohort C, 40 patients, cefazolin 2 g/8h and amikacin 500 mg/12 h for 72 h.
RESULTS: There was a significant decrease in the infection rate depending on the prophylaxis (23.9% in cohort A, 8.7% in cohort B, and 2.5% in cohort C). When logistic regression models were applied and cohorts B and C were compared with A, the following results were obtained: OR of 0.30 (CI: 0.08 - 0.97; P = 0.057) and 0.08 (IC: 0.00 - 0.45; P = 0.019), respectively.
CONCLUSIONS: Prophylaxis with prolonged double antibiotic therapy with cefazolin and amikacin is associated with a statistically significant decrease in the rate of SSI in patients with a high risk of infection.

Background and Objectives: Differentiation between brucella spondylodiscitis and Modic type I changes (MC1) includes difficulties. Hematological inflammatory indices (HII) such as neutrophil to lymphocyte ratio (NLR) and aggregate index of systemic inflammation (AISI) are suggested as indicators of inflammation and infection and have diagnostic, prognostic, and predictive roles in various diseases. This study aimed to evaluate differences between brucella spondylodiscitis and MC1 in terms of HII. Materials and Methods: Thirty-five patients with brucella spondylodiscitis and thirty-seven with MC1 were enrolled in the study. Brucella spondylodiscitis and MC1 were diagnosed by microbiological, serological, and radiological diagnostic tools. HII (NLR, MLR, PLR, NLPR, SII, SIRI, AISI) were derived from baseline complete blood count. Results: The two groups were similar for age (p = 0.579) and gender (p = 0.092), leukocyte (p = 0.127), neutrophil (p = 0.366), lymphocyte (p = 0.090), and monocyte (p = 0.756) scores. The Brucella spondylodiscitis group had significantly lower pain duration (p < 0.001), higher CRP and ESR levels (p < 0.001), and lower platelet count (p = 0.047) than the MC1 group. The two groups had similarity in terms of HII: NLR (p = 0.553), MLR (p = 0.294), PLR (p = 0.772), NLPR (p = 0.115), SII (p = 0.798), SIRI (p = 0.447), and AISI (p = 0.248). Conclusions: Increased HII can be used to differentiate infectious and non-infectious conditions, but this may be invalid in brucellosis. However, pain duration, CRP and ESR levels, and platelet count may be useful to distinguish brucella spondylodiscitis from MC1.

BACKGROUND: Brucellosis is a zoonotic infectious disease. It is estimated that the number of cases reported today is much less than the actual number. We still have difficulty in diagnosing the disease and its organ involvement. In this sense, new approaches that can be useful in clinical practice are required, and we aimed to evaluate this situation in our study.
METHODS: 171 of 213 patients followed in our center between January 2021 and April 2024 were included in the study. A total of 150 patients were included in the study as a control group. Rose Bengal test (RBT), Coombs gel test (CGT), enzyme-linked immunosorbent assay (ELISA), and automated blood culture were used for diagnosing brucellosis. Complete blood count, sedimentation, C-reactive protein, and biochemical parameters were obtained. Inflammation markers such as neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, systemic immune-inflammation index, and systemic inflammation response index were calculated.
RESULTS: The most successful results in the diagnosis were ELISA (89.4%), RBT (88.3%), CGT (83%), and blood culture (34.8%). For diagnosing sacroiliitis and spondylodiscitis, instead of resorting to expensive methods like magnetic resonance, a combination of ELISA positivity with elevated acute phase reactants and inflammatory markers could be significantly instructive.
CONCLUSIONS: Optimizing diagnostic algorithms and exploring novel diagnostic approaches, such as inflammatory markers, hold promise for improving diagnosis and management.