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Antibiotics (Basel, Switzerland) Nov 2020Bacterial resistance to antibiotics has catalysed interest in alternative antimicrobial strategies. Bacteriophages (phages) are viruses of bacteria with a long history... (Review)
Review
Bacterial resistance to antibiotics has catalysed interest in alternative antimicrobial strategies. Bacteriophages (phages) are viruses of bacteria with a long history of successful therapeutic use. Phage therapy is a promising antibacterial strategy for infections with a biofilm component, including recalcitrant bone and joint infections, which have significant social, financial and human impacts. Here, we report a systematic review of the safety and efficacy of phage therapy for the treatment of bone and joint infections. Three electronic databases were systematically searched for articles that reported primary data about human phage therapy for bone and joint infections. Two authors independently assessed study eligibility and performed data extraction. Seventeen reports were eligible for inclusion in this review, representing the treatment of 277 patients. A cautionary, crude, efficacy estimate revealed that 93.1% ( = 258/277) achieved clinical resolution, 3.3% ( = 9/277) had improvement and 3.6% ( = 10/277) showed no improvement. Seven of the nine reports that directly commented on the safety of phage therapy did not express safety concerns. The adverse effects reported in the remaining two were not severe and were linked to the presence of contaminating endotoxins and pre-existing liver pathology in a patient treated with high-titre intravenous phage therapy. Three other reports, from 1940-1987, offered general comments on the safety of phage therapy and documented adverse effects consistent with endotoxin co-administration concomitant with the use of raw phage lysates. Together, the reports identified by this review suggest that appropriately purified phages represent a safe and highly efficacious treatment option for complex and intractable bone and joint infections.
PubMed: 33182795
DOI: 10.3390/antibiotics9110795 -
Pediatric Radiology Jan 2021Whole-body magnetic resonance imaging (MRI) is increasingly being used for a number of indications. Our aim was to review and describe indications and scan protocols for... (Review)
Review
Whole-body magnetic resonance imaging (MRI) is increasingly being used for a number of indications. Our aim was to review and describe indications and scan protocols for diagnostic value of whole-body MRI for multifocal disease in children and adolescents, we conducted a systematic search in Medline, Embase and Cochrane for all published papers until November 2018. Relevant subject headings and free text words were used for the following concepts: 1) whole-body, 2) magnetic resonance imaging and 3) child and/or adolescent. Included were papers in English with a relevant study design that reported on the use and/or findings from whole-body MRI examinations in children and adolescents. This review includes 54 of 1,609 papers identified from literature searches. Chronic nonbacterial osteomyelitis, lymphoma and metastasis were the most frequent indications for performing a whole-body MRI. The typical protocol included a coronal STIR (short tau inversion recovery) sequence with or without a coronal T1-weighted sequence. Numerous studies lacked sufficient data for calculating images resolution and only a few studies reported the acquired voxel volume, making it impossible for others to reproduce the protocol/images. Only a minority of the included papers assessed reliability tests and none of the studies documented whether the use of whole-body MRI affected mortality and/or morbidity. Our systematic review confirms significant variability of technique and the lack of proven validity of MRI findings. The information could potentially be used to boost attempts towards standardization of technique, reporting and guidelines development.
Topics: Adolescent; Child; Humans; Magnetic Resonance Imaging; Neoplasms; Osteomyelitis; Reproducibility of Results; Whole Body Imaging
PubMed: 32588094
DOI: 10.1007/s00247-020-04735-9 -
The Pediatric Infectious Disease Journal Aug 2023Osteomyelitis is a condition that disproportionately affects those with sickle cell anemia (SCA). Despite the frequency of osteomyelitis in this population, there are...
BACKGROUND
Osteomyelitis is a condition that disproportionately affects those with sickle cell anemia (SCA). Despite the frequency of osteomyelitis in this population, there are reports of increasing life expectancy and rates of Staphylococcus aureus infections, which contrasts the belief that Salmonella is the most common organism identified. The purpose of this systematic review is to determine the most commonly identified organism and identify whether age is associated with the development of Salmonella osteomyelitis in homozygous sickle cell patients.
METHODS
A search of PubMed, EMBASE Cochrane and databases was performed for studies of all levels of evidence pertaining to osteomyelitis in SCA. Reasons for exclusion included non-English language, case reports, literature reviews, isolated septic arthritis without bony involvement and isolated oral-facial bony involvement.
RESULTS
The most common pathogen cultured was nontyphoid Salmonella , which occurred in 117 of 192 (60.9%) of cases identified. This was followed by S. aureus 41 of 192 (21.8%) and other enteric bacteria 14 of 192 (7.2%). Subgroup analysis demonstrated differences at the age of initial presentation with Salmonella cohort at 6.8 years and S. aureus cohort at 22.1 years ( P = 0.0001). On geographic analysis, African countries had an older average age of diagnosis at 13.1 years with decreased rates of Salmonella infections and increased rates of infections from other organisms compared with the US, Middle East and Europe.
CONCLUSIONS
This systematic review suggests that Salmonella is most commonly identified in patients with SCA (HbSS phenotype) especially those <12 years old presenting with acute osteomyelitis. Sub-Saharan African countries had later ages of diagnosis compared with the US, Middle East and Europe with bacterial profiles that favors a diagnosis of chronic osteomyelitis and missed acute initial presentation. Therefore, age of presentation is likely a surrogate for geographic and socioeconomic factors such as availability of medical screening and treatment.
Topics: Humans; Staphylococcus aureus; Salmonella Infections; Anemia, Sickle Cell; Salmonella; Osteomyelitis
PubMed: 37079601
DOI: 10.1097/INF.0000000000003937 -
Journal of Clinical Medicine Research Apr 2023Osteoarticular infections (OAIs) caused by () are a rare clinical entity. This study aimed to review all published cases of OAI due to A systematic review of PubMed,... (Review)
Review
Osteoarticular infections (OAIs) caused by () are a rare clinical entity. This study aimed to review all published cases of OAI due to A systematic review of PubMed, Scopus, and Cochrane Library was conducted to report the demographic and clinical characteristics, microbiological data, management, and outcome of OAIs caused by in the adult population. A total of 16 studies reporting on 16 patients were included in this review. Eight patients had arthritis and eight patients had osteomyelitis/discitis. The most reported risk factors were immunosuppression, poor dental hygiene/dental infections, and recent gastrointestinal (GI) endoscopy. Five cases of arthritis occurred in a native joint while three patients had prostheses. The potential source of infection was documented in more than half of the cases (56%) (most commonly odontogenic and GI sources (25% and 18%, respectively). The knee and hip joints were the most frequently affected joints in patients with arthritis, while the thoracic vertebrae were the most common sites for osteomyelitis/discitis. The blood cultures were positive in three patients with arthritis (37.5%) and five patients with osteomyelitis/discitis (62.5%). Associated endovascular infection was found in five patients with bacteremia. Contiguous spread (adjacent mediastinitis) was documented in two patients with sternal osteomyelitis and thoracic vertebral osteomyelitis. Surgical interventions were performed for 12 patients (75%). Most strains of were susceptible to penicillin and cephalosporins. All patients with reported outcomes had achieved complete recovery. is an emerging pathogen for OAIs in certain susceptible populations with specific risk factors. This review reported the demographic, clinical, and microbiological features of OAIs caused by . A careful evaluation of an underlying infectious focus is warranted to control the source. When bacteremia is present, it is also necessary to have a high index of suspicion to rule out an associated endovascular infection.
PubMed: 37187711
DOI: 10.14740/jocmr4891 -
Journal of Clinical Medicine Mar 2021A systematic review and quality assessment was performed to assess the management of diabetic foot osteomyelitis by medical or surgical treatment. The Preferred... (Review)
Review
A systematic review and quality assessment was performed to assess the management of diabetic foot osteomyelitis by medical or surgical treatment. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist was used. All selected studies were evaluated using the Cochrane Risk of Bias Tool to assess the risk of bias for randomized controlled trials. The literature was revised using PubMed (Medline) and Embase (Elsevier) up to September 2020 to identify clinical trials assessing medical or surgical treatment to manage diabetic foot osteomyelitis. A total of six clinical trials that met our inclusion criteria, with a total of 308 participants. Healing rate, complete closure of the wound, and type of complications were the outcomes evaluated. Risk of bias assessment showed that only two of the six clinical trials included in the systematic review had a low risk of bias. Based on our findings, we believe that the management of diabetic foot osteomyelitis remains challenging. There are few high-quality clinical trials that both stratify clinical presentations and compare these treatments. We conclude that the available evidence is insufficient to identify the best option to cure diabetic foot osteomyelitis.
PubMed: 33802685
DOI: 10.3390/jcm10061237 -
Journal of Chemotherapy (Florence,... Sep 2020species have been recognized to cause infections in immunocompromised individuals. The purpose of this study was to systemically review all published cases of... (Review)
Review
species have been recognized to cause infections in immunocompromised individuals. The purpose of this study was to systemically review all published cases of infections in humans and describe the epidemiology, microbiology, antimicrobial susceptibility, treatment and outcomes of these infections in humans. We performed a systematic review of PubMed (through 20 Octrober 2019) for studies providing epidemiological, clinical, microbiological as well as treatment data and outcomes of species infections. A total of 37 studies, containing data of 99 patients, were included in the analysis. The most common infections were those of the bloodstream in 74.7% (74 patients), musculoskeletal infections in 8.1% (8 patients), skin and soft tissue infections (SSTIs) and peritoneal dialysis-associated peritonitis in 6.1% (6 patients) each. Epidemiology of these infections differed, with bacteremias being more prevalent in patients with malignancy and central venous lines, musculoskeletal infections being more prevalent after orthopedic surgery, and SSTIs occurring without any reported underlying cause. Resistance to beta-lactams was very high with penicillin, piperacillin/tazobactam resistance and cephalosporin resistance at 96.6%, 90.7% and 77.8% respectively, while quinolone resistance was 9.1%. Quinolones, carbapenems and cephalosporins are the most common agents used for treatment, irrespectively of the infection site. Overall mortality was 3% (3 patients), with the mortality attributed to being at 1% (1 patient).
Topics: Antifungal Agents; Gram-Negative Bacterial Infections; Humans; Methylobacteriaceae
PubMed: 32619387
DOI: 10.1080/1120009X.2020.1785742 -
Orphanet Journal of Rare Diseases Aug 2021Osteomyelitis variolosa is a self-limiting disease triggered by variola virus that cannot be prevented or repaired. Smallpox has been eradicated for 40 years, and... (Review)
Review
BACKGROUND
Osteomyelitis variolosa is a self-limiting disease triggered by variola virus that cannot be prevented or repaired. Smallpox has been eradicated for 40 years, and complications that remain after smallpox has been cured have become a remarkable diagnostic challenge for contemporary physicians. In this systematic review, we searched PubMed (MEDLINE), Web of Science, and Google Scholar for cases on complications, diagnosis, and treatment for osteomyelitis variolosa between January 1980 and February 2021.
RESULTS
Ten papers and eleven finished cases, all patients from India, were included for comparison with the present case. In total, 100% of patients presented with bilateral elbow deformities, the ankle was the second most common site of lesion in 50%, and knee lesions accounted for 25% in this study. Flexion contracture, joint instability, secondary arthritis, and fracture are common complications of osteomyelitis variolosa, and most patients receive conservative treatment, while internal fixation has good results for combined fractures.
CONCLUSIONS
Although osteomyelitis variolosa is not a direct threat to the safety of patients, severe skeletal deformities can have a significant impact on quality of life. With advances in surgical techniques, clinicians are offering an increasing number of treatment options for patients with osteomyelitis variolosa. However, most importantly, smallpox has basically been removed from the historical arena, and for areas where smallpox was once endemic, physicians need to deepen the understanding of this disease again.
Topics: Humans; Joint Instability; Osteomyelitis; Quality of Life; Smallpox; Variola virus
PubMed: 34362412
DOI: 10.1186/s13023-021-01985-0 -
Journal of Craniovertebral Junction &... 2022Cat scratch disease (CSD), caused by , may atypically present with vertebral osteomyelitis. Antibiotic regimens are tailored to presentation, which is markedly variable... (Review)
Review
Cat scratch disease (CSD), caused by , may atypically present with vertebral osteomyelitis. Antibiotic regimens are tailored to presentation, which is markedly variable and not well defined for any atypical disease. In cases of spinal instability, the use of antibiotics alone may not be sufficient. Atlantoaxial instability caused by osteomyelitis is a rare complication of CSD. In this report, we describe the rare case of vertebral osteomyelitis complicated by atlantoaxial instability, requiring both antibiotics and atlantoaxial fusion. We discuss our case, surgical technique, rationale, and outcome. In addition, we conducted a systematic review of the literature of vertebral osteomyelitis in pediatric secondary to . A 2-year-old child presented with a 2-month history of irritability, fever, and rigid neck pain along with a recent history of feline exposure. Physical examination revealed cervical tenderness and decreased range of motion. Computed tomography (CT) showed osteolysis of the right C1 lateral mass and pars articularis; T1-weighted magnetic resonance imaging with contrast showed enhancement around the right C1 lateral mass. The titer for was high. A diagnosis of cat scratch osteomyelitis with cervical instability was made, for which the patient underwent surgery with atlantoaxial fusion. Postoperative imaging demonstrated resolution of the contrast-enhanced lesion. At 6-year follow-up, the patient showed no signs of residual complications from surgical intervention with a solid fusion. Our review revealed 44 cases of pediatric CSD vertebral osteomyelitis. Conservative management with antibiotic employed in 86% while antibiotics with surgical intervention in 14% of the cases. Surgical intervention was most often in the form of incision for drainage and decompression without fusion. Average follow-up 10 months with 86% achieved complete resolution. Cervical instability caused by osteolysis is a rare complication of CSD. This can subsequently lead to vertebral instability, requiring definitive surgical intervention.
PubMed: 36263337
DOI: 10.4103/jcvjs.jcvjs_206_20 -
Bioengineering (Basel, Switzerland) Aug 2022Bone fractures often require fixation devices that frequently need to be surgically removed. These temporary implants and procedures leave the patient more prone to... (Review)
Review
Bone fractures often require fixation devices that frequently need to be surgically removed. These temporary implants and procedures leave the patient more prone to developing medical device-associated infections, and osteomyelitis associated with trauma is a challenging complication for orthopedists. In recent years, biodegradable materials have gained great importance as temporary medical implant devices, avoiding removal surgery. The purpose of this systematic review was to revise the literature regarding the use of biodegradable bone implants in fracture healing and its impact on the reduction of implant-associated infections. The systematic review followed the PRISMA guidelines and was conducted by searching published studies regarding the in vivo use of biodegradable bone fixation implants and its antibacterial activity. From a total of 667 references, 23 studies were included based on inclusion and exclusion criteria. Biodegradable orthopedic implants of Mg-Cu, Mg-Zn, and Zn-Ag have shown antibacterial activity, especially in reducing infection burden by MRSA strains in vivo osteomyelitis models. Their ability to prevent and tackle implant-associated infections and to gradually degrade inside the body reduces the need for a second surgery for implant removal, with expectable gains regarding patients' comfort. Further in vivo studies are mandatory to evaluate the efficiency of these antibacterial biodegradable materials.
PubMed: 36004934
DOI: 10.3390/bioengineering9080409 -
Microsurgery Nov 2022Free flaps for soft tissue coverage of the lower extremity can be broadly divided into muscle/musculocutaneous and fasciocutaneous flaps. The purpose of this systematic... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Free flaps for soft tissue coverage of the lower extremity can be broadly divided into muscle/musculocutaneous and fasciocutaneous flaps. The purpose of this systematic review and meta-analysis was to assess their different post-operative outcomes.
METHODS
A systematic search was performed in PubMed, Scopus, and the Web of Science from their inception to February 2022. Non-randomized comparative studies, which describe any post-operative outcome of muscle/musculocutaneous and fasciocutaneous free flaps reconstruction in the lower extremity were included. Articles with duplicate titles, editorials, review articles, case series, case reports, and publications lacking an abstract, those reporting pediatric patients, those describing only muscle/musculocutaneous or fasciocutaneous free flaps, those with incomplete or incomparable post-operative outcomes, and studies involving <10 muscle/musculocutaneous or fasciocutaneous free flaps were excluded. A comparative meta-analysis was conducted on muscle/musculocutaneous and fasciocutaneous free flaps outcomes, comprising vascular thrombosis, partial or complete flap necrosis, infection, donor-site complications, non-union, and primary or recurrent osteomyelitis. The fixed-effects meta-analysis model was used when low heterogeneity (I < 50%) was identified.
RESULTS
Twenty-two articles with a total of 2711 flaps (1584 muscle/musculocutaneous flaps and 1127 fasciocutaneous flaps) were included in the qualitative and quantitative assessment. The rates of any flap necrosis (12.0% vs. 7.4%; p = 0.007) and donor-site complications (16.7% vs. 6.7%; p < 0.0001) were significantly higher for muscle/musculocutaneous flaps than for fasciocutaneous flaps. There were no significant differences in the rates of vascular thrombosis (10.5% vs. 10.7%; p = 0.98), complete flap necrosis (6.2% vs. 4.7%; p = 0.30), infection (19.4% vs. 14.7%; p = 0.18), non-union (18.9% vs. 14.8%; p = 0.33), and primary or recurrent osteomyelitis (14.7% vs. 12.4%; p = 0.69).
CONCLUSION
This meta-analysis revealed no significant difference in long-term post-operative outcomes, but suggested that fasciocutaneous flaps should be preferred to avoid flap necrosis and donor-site complications.
Topics: Humans; Child; Free Tissue Flaps; Plastic Surgery Procedures; Lower Extremity; Postoperative Complications; Osteomyelitis; Muscles; Necrosis; Retrospective Studies
PubMed: 36134744
DOI: 10.1002/micr.30961