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Data from 1158 cases of septic arthritis reported to the Public Health Laboratory Service (PHLS) Communicable Disease Control Centre (CDSC) from England and Wales over a 4 yr period (January 1990 December 1993) are presented. Reports where a bacterial organism was isolated from synovial fluid, or where an organism was isolated from blood cultures where a diagnosis of septic arthritis was reported, were examined. Reports of infection were more common in children (12.7% of infections were in the under 10 age group) and the elderly (54.7% aged 60 or over), and were higher in males in all age groups except in the elderly. The most common causative organisms remain staphylococcal and streptococcal species, comprising 40.6% (470) and 28% (324) of cases, respectively. The most common streptococci seen were Streptococcus pneumoniae and Lancefield group A beta-haemolytic Streptococcus organisms, 60.8% (197/324), although group B, C and G organisms accounted for 33.6% of streptococcal isolates (109/324). Haemophilus influenzae septic arthritis is not exclusive to children as 23.2% (16-69) of cases occurred over the age of 15. A total of 48% (635) of isolates were identified from both synovial fluid and blood cultures, 32.6% (378) from joint fluid alone and 12.5% (146) from blood cultures. Although this study excludes cases of septic arthritis where no organism was isolated, it presents important bacteriological information from a large number of isolates from England and Wales over a 4 yr period. Risk factors identified include a joint prosthesis, joint disease/connective tissue disorder. immunosuppression and diabetes.
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PMID:Bacterial joint infections in England and Wales: analysis of bacterial isolates over a four year period. 913 71

The clinical features, essential laboratory findings, management, and outcome of all 23 cases of septic arthritis caused by different serogroups of beta-hemolytic streptococcus (BHS) seen at the Stanford Medical Center, Stanford, CA, from July 1, 1985, through October 31, 1996, were reviewed and compared to those found in the literature. Group A streptococci (GAS) accounted for 9 (40%) of our cases; group B (GBS), for 7 (30%); and Group G (GGS), for 7 (30%). No cases were caused by Group C (GCS) or F (GFS) during this period. During the same period, GAS accounted for 66 (33%) of 200 cases of bacteremia due to BHS, GBS, for 98 (49%); GCS, for 12 (6%); GFS, for 4 (2%); and GGS, for 20 (10%). A review of potential risk factors revealed that, with the exception of GGS, male and female patients were almost equally distributed among each of the serogroups. Patients aged 50 years and older comprised 56%-77% of each group. Associated conditions and risk factors were present among most patients (19/23, 83%); autoimmune diseases and a chronic skin wound or trauma were notably present among patients with GAS, while diabetes mellitus and malignancy were more common among patients with GBS. Infected prosthetic implants were present in 7 patients, including 4/7 patients with GGS. All patients had positive cultures of synovial fluid, and 11/23 (49%) had positive blood cultures (GAS, 5/9; GBS, 6/7; and GGS, 0/7). The clinical presentation and hospital course of patients infected with the different serogroups varied. Patients infected with GAS had the most severe disease and those with GGS the least severe. Necrotizing fascitis, shock, DIC, and admission to the intensive care unit were found only among patients infected with GAS. Despite aggressive management with antimicrobial therapy and surgery, 4/23 patients died (3 patients with GAS; 1 with GBS). The isolates from our patients were not available for study; investigations by others of the biology of BHS suggest that the production of 1 or more of the streptococcal pyrogenic exotoxins by isolates of GAS may account for the differences in the severity of disease among our patients with septic arthritis caused by different serogroups of BHS. Although septic arthritis due to BHS is uncommon, such patients provide a valuable model to study features of the host-parasite interaction that may contribute to the observed differences in severity of disease.
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PMID:Bacterial arthritis due to beta-hemolytic streptococci of serogroups A, B, C, F, and G. Analysis of 23 cases and a review of the literature. 955 3

Edwardsiella tarda is an uncommon pathogen in the family Enterobacteriaceae which usually infects patients with underlying diseases. Its habitats include fresh water, a variety of animals and human feces. We report a case of E. tarda bacteremia and septic arthritis with underlying diabetes mellitus, the first found in Thailand.
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PMID:Edwardsiella tarda bacteremia and septic arthritis in a patient with diabetes mellitus. 956 28

Septic arthritis is usually of hematogenous origin and is increasingly being reported in elderly patients, who often have underlying medical conditions such as diabetes or alcoholism. We report a 62-year-old patient with alcoholic liver disease who presented with Escherichia coli bacteremia and septic arthritis in a previously fractured ankle. There are scarce reports of infectious arthritis in cirrhotic patients, but this is the first report of arthritis after a primary enteric bacteremia. We believe that the patient described here developed E. coli bacteremia as a result of bacterial overgrowth and translocation related to alcoholic liver disease and cirrhosis. The resulting bacteremia resulted in the development of infection in the left ankle, which had preexisting disease and was thus vulnerable. This case provides further evidence for the mode of infection being bacteremia in cirrhotic patients. In patients with cirrhosis and fever, a high index of suspicion is required for joint infection as a potential cause of fever or deterioration in the cirrhotic's patient general condition.
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PMID:Spontaneous bacterial arthritis in a cirrhotic patient. 985 73

From 1993 to 1998, 29 pyogenic psoas abscesses occurring in 27 patients were seen in Taichung Veterans General Hospital. Their age range was 25 to 85 years. Diabetes mellitus was the leading underlying disease. Fever and pain in the flank area, back and hip were the usual manifestations. The duration of symptoms prior to the diagnosis ranged from 3 days to 6 months. Most abscesses were diagnosed by computed tomography (CT) images and proven by abscess cultures, which were divided into primary and secondary types. Eighteen of 29 abscesses were regarded as primary. Staphylococcus aureus was the most common pathogen in the primary abscesses, followed by Streptococcus agalactiae, Escherichia coli, viridans streptococci, S. epidermidis, and Salmonella spp.. In the secondary abscess category, E. coli was the leading organism in this series, followed by S. aureus, Klebsiella pneumoniae, viridans streptococci and Candida albicans. The associated conditions included epidural abscess, osteomyelitis, septic arthritis, perirenal abscess, pulmonary tuberculosis, empyema, hydronephrosis and trauma history. The initial empiric therapy comprised mostly of cefazolin or oxacillin with or without an aminoglycoside. Thirteen patients underwent percutaneous drainage, while six received surgical debridement, including two with a recurrent abscess. One patient had both drainage and debridement. Others received medical treatment only. Two of the patients with primary abscess died in spite of percutaneous drainage. Therefore, open drainage, besides appropriate antibiotic treatment, is still required to control complex abscesses with sepsis.
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PMID:Pyogenic psoas abscess: analysis of 27 cases. 1065 Apr 91

Two types of haematogenous osteomyelitis that are seen in the elderly are vertebral and long bone osteomyelitis. Osteomyelitis secondary to contiguous foci of infection can occur in older adults without vascular insufficiency (secondary to pressure ulcers) or with vascular insufficiency due to diabetes mellitus or peripheral vascular disease from atherosclerosis. Most cases of osteomyelitis can be reasonably treated with adequate drainage, thorough debridement, obliteration of dead space, wound protection, and antimicrobial therapy. Patients are initially given a broad spectrum antimicrobial that is changed to specific antimicrobial therapy based on meticulous bone cultures taken at debridement surgery or from deep bone biopsies. Surgical management is often required in the treatment of osteomyelitis and includes adequate drainage, extensive debridement of all necrotic tissue, obliteration of dead spaces, stabilisation, adequate soft tissue coverage, and restoration of an effective blood supply. Bone repair and bone mineral density may be significantly retarded and may be corrected by eliminating risk factors, supplementing the diet with calcium, bisphosphonates, and/or vitamin D, and treating with testosterone and/or estrogen when deficient. Sodium fluoride treatment and anabolic steroids may be used as alternatives. Septic arthritis is a medical emergency, and prompt recognition and rapid and aggressive treatment are critical to ensuring a good prognosis. The treatment of septic arthritis includes appropriate antimicrobial therapy and joint drainage. Adverse effects of prescribed antibacterials occur more often in the elderly patient than in young adults. The physician can help to minimise the incidence of adverse effects and improve outcomes by being aware of the principles of clinical pharmacology, the characteristics of specific drugs, and the special physical, psychological and social needs of older patients.
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PMID:Bone and joint infections in the elderly: practical treatment guidelines. 1073 65

We herein report the case of a 68-year-old man with diabetes who developed pyogenic arthritis of a lumbar facet joint after spinal injection. We performed magnetic resonance imaging (MRI), computed tomography (CT), technetium 99 methylene diphosphonate scintigraphy, and single photon emission computed tomography (SPECT) for this patient. MRI showed a lesion in the facet joint and no evidence of spondylodiscitis. CT showed a swelling of periarticular soft tissue around the facet joint. Bone scintigraphy showed a characteristic vertical uptake. In particular, SPECT was able to clearly confirm the location of the infection. An infection of the facet joint has only been rarely reported, but we recommended that this area should be carefully evaluated whenever a patient develops an infection of the lumbar spine after a spinal injection.
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PMID:Pyogenic arthritis of a lumbar facet joint. 1074 74

Septic arthritis has shown no change in incidence, and despite advances in antimicrobial therapy is often responsible for residual functional impairment and for a high mortality rate among debilitated patients. Risk factors include older age, diabetes mellitus, rheumatoid arthritis, immunodeficiency, and a preexisting joint disease (e.g., rheumatoid arthritis) to which the symptoms of septic arthritis are sometimes ascribed. Staphylococcus aureus contributes over two-thirds of identified organisms; a range of streptococci and gram-negative bacilli are next in frequency. The most common site is the knee, followed by the hip and shoulder. Over 10% of patients have polyarticular involvement reflecting bacteremia and diminished resistance to infection; (over 50% of polyarticular forms occur in rheumatoid arthritis patients). Prosthetic joint infection is becoming increasingly common; chronic forms due to intraoperative contamination and resulting in septic loosening should be distinguished from acute hematogenous infection in which emergency treatment can allow to salvage the prosthesis. Demonstration of the organism in the joint is the key to the diagnosis. Joint aspiration should be performed on an emergency basis, if needed after identification of radiographic landmarks or under ultrasonographic guidance. Seeding the fluid on blood culture flasks immediately after aspiration increases the yield. Antibiotics should be started as soon as the microbiological specimens have been collected. When aspiration is difficult (hip) or inadequate, arthroscopic drainage usually makes arthrotomy unnecessary. Early antiinflammatory therapy (nonsteroidal antiinflammatory drugs, systemic or local glucocorticoids, anticytokines, and antiinflammatory cytokines) are being considered as tools for limiting joint damage; their efficacy and safety will first have to be established in animal studies.
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PMID:Pyogenic arthritis in adults. 1077 64

Forty-one patients with 42 joint infections were admitted to the hospital between June 1989 and June 1994. An overview on the behaviour of septic arthritis in both children and adults, at presentation and after various types of treatment was done. There were 32 knees, 7 hips, 2 elbows and 1 shoulder. Duration of symptoms, type of organism, type of joint drainage, presence of preexisting joint problems and presence of osteomyelitis are among the important factors with prognostic significance. Seventy three percent of patients with less than 7 days duration of symptoms had satisfactory results. Whereas when the duration of symptoms exceeded 7 days, 75% of the patients had unsatisfactory outcome. All cases with poor outcome had positive cultures. Staphylococcus aureus was responsible for 77% of the culture-positive cases. All Staphylococcus aureus in this study were penicillin-resistant but sensitive to cloxacillin. There were 3 instances where Staphylococcus became resistant to cloxacillin following recurrence of septic arthritis. However, they were still sensitive to third generation cephalosporin. Staphylococcus aureus was capable of producing poor results even when the case was treated early. Other organisms were gram-negative bacilli which infect patients with suppressed immune system, that is, intravenous drug abuser, systemic steroid therapy and diabetes mellitus. Open arthrotomy was the method of drainage used in all hip sepsis. This method was also the most reliable method of joint drainage in other joints compared to aspiration method when frank pus was already present. Most immuno-compromised patients recovered badly from septic arthritis. Associated adjacent osteomyelitis, preexisting chronic arthritis and recent intra-articular fractures were also noted to adversely affect the functional outcome.
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PMID:An epidemiological study of septic arthritis in Kuala Lumpur Hospital. 1096 88

In a prospective study of melioidosis in northern Australia, 252 cases were found over 10 years. Of these, 46% were bacteremic, and 49 (19%) patients died. Despite administration of ceftazidime or carbapenems, mortality was 86% (43 of 50 patients) among those with septic shock. Pneumonia accounted for 127 presentations (50%) and genitourinary infections for 37 (15%), with 35 men (18%) having prostatic abscesses. Other presentations included skin abscesses (32 patients; 13%), osteomyelitis and/or septic arthritis (9; 4%), soft tissue abscesses (10; 4%), and encephalomyelitis (10; 4%). Risk factors included diabetes (37%), excessive alcohol intake (39%), chronic lung disease (27%), chronic renal disease (10%), and consumption of kava (8%). Only 1 death occurred among the 51 patients (20%) with no risk factors (relative risk, 0.08; 95% confidence interval, 0.01-0.58). Intensive therapy with ceftazidime or carbapenems, followed by at least 3 months of eradication therapy with trimethoprim-sulfamethoxazole, was associated with decreased mortality. Strategies are needed to decrease the high mortality with melioidosis septic shock. Preliminary data on granulocyte colony-stimulating factor therapy are very encouraging.
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PMID:Endemic melioidosis in tropical northern Australia: a 10-year prospective study and review of the literature. 1104 80


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