UNASSIGNED: Emphysematous osteomyelitis (EO) is an uncommon and deadly pathology characterized by occurrence of intraosseus air within the bone. However, only few of them have been reported. The use of local antibiotic delivery system has proven to be very effective in bone and joint infections as they offer decreased hospital stay and early clearance of infection. To the best of our knowledge, there are no reports on local antibiotic delivery using absorbable synthetic calcium sulfate beads in EO.
UNASSIGNED: A 59-year-old male with Type II diabetes mellitus, chronic kidney, and liver disease came with pain and swelling over left leg. After blood investigations and radiological evaluation, he was diagnosed to have EO of tibia with unknown source of infection. We successfully treated him with immediate surgical decompression and application of antibiotic impregnated absorbable calcium sulfate beads locally for improved local antibiotic delivery. Following this, he was further treated with culture sensitive intravenous antibiotics and his symptoms resolved.
UNASSIGNED: Early diagnosis and aggressive surgical intervention along with local antimicrobial therapy using calcium sulfate beads can offer better outcome in EO. The local antibiotic delivery system can decrease the use of prolonged intravenous antibiotic therapy and long hospital stay.

Surgical site infections (SSIs) are medically devastating and financially costly complications after posterior spinal fusion (PSF) for neuromuscular scoliosis (NMS). Many strategies exist to reduce their occurrence. The efficacy of intraoperative antibiotics in the wound or bone graft is gaining in popularity, but this practice has not been well-studied in the PSF NMS population.
To assess the potential utility of intraoperative local antibiotics in patients with NMS undergoing PSF.
Retrospective review of prospectively collected data.
Pediatric patients who underwent PSF for NMS were identified from the 2016-2018 National Surgical Quality Improvement Program (NSQIP) pediatric spinal fusion datasets.
Perioperative adverse outcome variables assed included the occurrence of SSI, renal complications, and adverse hospital metrics.
Patient demographic factors, comorbidities, and the use of intraoperative antibiotics in the wound were recorded (a specifically assessed variable in the dataset). The association between the use of intraoperative antibiotics and the occurrence of adverse outcomes/infection was assessed for the entire study population and higher risk sub-populations.
In total, 1,990 patients met the inclusion criteria, of which 87% received local antibiotics. Higher risk patients were more likely to receive local antibiotics in the wound as part of their procedure. When controlling for potentially confounding factors, the use of local antibiotics was not statistically significantly associated with any of the studied adverse outcomes for the overall study population. Subgroup analysis of higher risk patient populations (≥13 levels fused, osteotomy performed, prior deformity surgery, nonasthma lung condition) revealed a significantly decreased risk of SSI in patients undergoing ≥13 level fusions (relative risk: 0.48, 95% confidence interval: 0.25-0.91).
With no increased overall risks and reduced SSIs in higher risk NMS patients undergoing PSF, the use of intrawound antibiotics appears to be supported by this dataset.

Periprosthetic joint infections (PJIs) are a cause of frequent implant failure in revision hip replacement surgery. The purpose of this study is to evaluate the onset of early postoperative infections in patients who underwent hip surgery with cementless prostheses treated with an antibiotic loaded hydrogel on their surface, in addition to systemic prophylaxis, and compare them to a control group. The secondary objective was to evaluate the onset of any local and systemic adverse effects and interference with bone ingrowth processes and functional recovery. A retrospective observational study was conducted on patients who underwent revision hip surgery by performing a 1:1 match between patients treated with an antibiotic hydrogel (ALH) and the control patients. The incidence of PJIs was assessed with a minimum of six months follow-up. Seventeen patients treated with the ALH were compared with 17 patients from the control group. No PJIs were reported in the ALH group versus the six cases encountered in the control group (p < 0.0001). No significant differences were reported with regard to prosthetic osseointegration and functional results, nor were there side effects in the ALH group. Despite the low sample size, the use of on-site prophylaxis with ALH has proven effective and safe in reducing the risk of PJIs in patients with a high risk for infections. Further studies are needed to validate these results in other implant-related surgeries.