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Jie Xiang, Weibo Zhao, Xiao Luo, Zhenghua Hong, and Hua Luo

  • Spontaneous spinal subdural hematoma (SSDH) is a rare and dangerous intraspinal hematoma that usually occurs in the thoracic vertebra. The influence of early cardiovascular changes secondary to spinal cord injury is an important emergent issue.

  • Herein, we report a case of a middle-aged woman with clinical manifestations of back pain and motion and sensory disturbances below the level of spinal cord compression. During the disease course, she also developed changes indicative of myocardial injury, such as tachycardia, markedly increased concentrations of brain natriuretic peptide and cardiac troponin I, and a decreased left ventricular ejection fraction, which were consistent with the diagnosis of Takotsubo cardiomyopathy (TTC). After the administration of supportive therapies, the symptoms of myocardial injury rapidly resolved. With the absorption of SSDH, the symptoms and clinical signs were alleviated. We also reviewed the literature on cases of concomitant SSDH and TTC.

  • This rare case broadens the symptom spectrum of SSDH and highlights the need for clinicians to be aware of concomitant SSDH and TTC. Initial conservative treatment is a viable option for SSDH with concomitant TTC. However, urgent surgery may be a better option if the SSDH progressively enlarges and causes spinal cord compression.

Hua Luo, Yongwei Su, Liang Ding, Haijun Xiao, Ming Wu, and Feng Xue

  • With advances in the treatment of femoral shaft nonunion after intramedullary nailing, the optimal option remains controversial. This study aimed to quantitatively investigate outcomes in a comparison of exchange nailing and augmentative plating for femoral shaft nonunion after intramedullary nailing.

  • The EMBASE, PubMed, Cochrane library and Clinical databases were systematically searched dating from their inception to March 2018. All retrospective controlled and prospective trials evaluating exchange nailing and augmentative plating for the treatment of femoral shaft nonunion after intramedullary nailing were identified. Two investigators extracted all related data independently and we used the review manager software to perform the meta-analysis.

  • Three studies with a total of 232 patients were eligible for data extraction in our study. The meta-analysis indicated that the augmentative plating group had a lower nonunion rate, shorter time to union, less intra-operative blood loss, and shorter operative time than the exchange nailing group. While for the infection rate, there was no significant difference between augmentative plating and exchange nailing group.

  • The available evidence has shown that augmentative plating is superior to exchange nailing for femoral shaft nonunion after intramedullary nailing.

Cite this article: EFORT Open Rev 2019;4:513-518. DOI: 10.1302/2058-5241.4.180054

Hua Luo, Yu Ren, Yongwei Su, Feng Xue, and Zhenghua Hong

  • The purpose of the study was to evaluate the effect of local application of vancomycin powder (VP) to prevent surgical site infections (SSIs) after posterior spine surgery.

  • A comprehensive search of Web of Science, EMBASE, Pubmed, Ovid, and Cochrane Library databases for articles published was performed to collect comparative studies of intrawound vancomycin in posterior spine surgery before March 2021. Two reviewers independently screened eligible articles based on the inclusion and exclusion criteria, assessed the study quality, and extracted the data. Revman 5.4 software was used for data analysis.

  • A total of 22 articles encompassing 11 555 surgical patients were finally identified for meta-analysis. According to the information provided by the included literature, the combined odds ratio showed that topical use of VP was effective for reducing the incidence of SSIs (P< 0.00001) after posterior spine surgery without affecting its efficacy in the treatment of deep infections (P< 0.00001). However, there is no statistical significance in superficial infections. In a subgroup analysis, VP at a dose of 1, 2, and 0.5–2 g reduced the incidence of spinal SSIs. The result of another subgroup analysis suggested that local application of VP could significantly reduce the risk of SSIs, whether it was administered after posterior cervical surgery or thoracolumbar surgery. Moreover, the percentage of SSIs due to gram-positive germs (P< 0.00001) and MRSA (P< 0.0001) could reduce after intraoperative VP was used, but did not significantly reduce to gram-negative germs.

  • The local application of VP appears to protect against SSIs, gram-positive germs, and MRSA (methicillin-resistant Staphylococcus aureus) infections after the posterior spinal operation.

Xinhuan Lei, Jie Xiang, Hailan Yang, Hongya Bao, Zhong Zhu, and Hua Luo

Purpose

  • Surgical site infection (SSI) is a rare and serious complication of total knee arthroplasty (TKA), which causes a poor prognosis for patients. The purpose of this study was to explore the effect of intraosseous (IO) antibiotics in preventing infection and complications after TKA compared with intravenous (IV) antibiotics and to provide a certain theoretical basis for clinical treatment.

Methods

  • The review process was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched the PubMed, Embase, Ovid, Web of Science, and the Cochrane Central Register of Controlled Trials databases about trials on IO antibiotics (into the proximal tibia before skin incision) to prevent infections in TKA from the respective inception dates to September 30, 2022. The infection occurred within 3 months after surgery. Both researchers individually screened the studies in accordance with the inclusion and exclusion criteria, performed the literature quality evaluation and data extraction, and used Stata 17 software for data analysis.

Results

  • Five studies that enrolled 3801 patients were included in this meta-analysis. The results showed that IO antibiotics were effective in reducing the incidence of SSI (OR: 0.25, P = 0.001) and periprosthetic joint infections (OR: 0.16, P = 0.004) relative to IV. Moreover, the percentage of infection due to Gram-positive bacteria (OR: 0.18, P = 0.025) was reduced in the IO group compared with that in IV group, but Gram-negative bacteria levels were not significantly reduced (P = 0.14). There was no difference between the two groups for other systemic adverse effects of the drug.

Conclusions

  • IO antibiotics in TKA are safe and effective alternatives to IV antibiotics. Large randomized clinical studies comparing infection rates and related complications with IO and IV antibiotics are required.