scholarly journals 388. Spinal Implant Infections Treated with Debridement and Hardware Retention

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S200-S201
Author(s):  
Cynthia Rivero ◽  
Santiago Martinez ◽  
Orlando Pardo ◽  
Cintia Jahan ◽  
Segundo Fuego ◽  
...  

Abstract Background Surgical site infections following spinal surgery affect 0. 3 to 20% of patients. The longer the infection, the greater the chance of antibiotic treatment failure due to the establishment of mature microbial biofilm on the hardware, requiring its removal for infection eradication. Methods Retrospective cohort of patients with microbiologically confirmed SII following spinal surgery treated with debridement and retention. SII was defined as the presence of clinical signs of deep surgical site infection with 2 or more positive culture results of tissue surrounding the implant taken during surgical debridement; or from CT guided biopsy. Inclusion criteria: adults with a 1º episode of microbiological confirmed SII diagnosed from 2008 to 2017 with >2 years of follow-up, treated with implant retention. Definitions Early-onset infection (EOI): infection < 1 month following implant placement. Late onset infection (LOI): between 30 days and 1 year after implant placement. Delayed onset infection (DOI): >1 year of implant placement. Statistical analysis made in Graph Pad Prism 5. 0. Results We analyzed 19 patients with SII treated with hardware retention. Mean age was 54 (21–70) years, 63% were female. Comorbidities, clinical manifestations and motive for surgery are in Table 1 and Figure 1. Hardware material used was titanium 15(79%) and steel 4(21%). In addition to the hardware,11 patients (57. 9%) underwent bone grafting, 4 experienced treatment failure (4/11 = 36. 4%); 2 patients had nonmetallic material inserted (carbon polymer), the 2 patients experienced failure. 16 patients (84. 2%) had EOI, 2 (10. 5%) LOI, 1 (5. 3%) DOI. Failure requiring implant removal was observed in 26. 3% (n = 5), 2 of the cases were EOI, 2 LOI and 1 DOI. Bacterial characteristics of patients are shown in Table 2. 47,4% of patients required more than one debridement (Figure 2). In the lineal regression model, treatment failure was associated with bone grafting (P = 0. 04) and the use of carbon polymer materials (P = 0. 007). Conclusion Treatment of SII with debridement plus antimicrobials treatment is acceptable, with a rate failure of 26%. In LOI and DOI spinal implant retention is more prone to fail. Bone grafting and the presence of polymers seem to be associated with treatment failure of conservative strategies. Disclosures All authors: No reported disclosures.

2020 ◽  
Vol 102-B (7) ◽  
pp. 899-903
Author(s):  
Justus Bürger ◽  
Yannick Palmowski ◽  
Patrick Strube ◽  
Carsten Perka ◽  
Michael Putzier ◽  
...  

Aims To evaluate the histopathological examination of peri-implant tissue samples as a technique in the diagnosis of postoperative spinal implant infection (PSII). Methods This was a retrospective analysis. Patients who underwent revision spinal surgery at our institution were recruited for this study. PSII was diagnosed by clinical signs, histopathology, and microbiological examination of intraoperatively collected samples. Histopathology was defined as the gold standard. The sensitivity for histopathology was calculated. A total of 47 patients with PSII and at least one microbiological and histopathological sample were included in the study. Results PSII occurred in approximately 28% of the study population. Histopathology showed a sensitivity of 51.1% in the diagnosis of PSII. The most commonly found pathogens were Cutibacterium acnes and gram-positive staphylococci. Conclusion Histopathology has low sensitivity for detecting PSII. In particular, infections caused by low-virulence microorganisms are insufficiently detected by histopathology. Cite this article: Bone Joint J 2020;102-B(7):899–903.


Author(s):  
А.Р. Зарипова ◽  
Л.Р. Нургалиева ◽  
А.В. Тюрин ◽  
И.Р. Минниахметов ◽  
Р.И. Хусаинова

Проведено исследование гена интерферон индуцированного трансмембранного белка 5 (IFITM5) у 99 пациентов с несовершенным остеогенезом (НО) из 86 неродственных семей. НО - клинически и генетически гетерогенное наследственное заболевание соединительной ткани, основное клиническое проявление которого - множественные переломы, начиная с неонатального периода жизни, зачастую приводящие к инвалидизации с детского возраста. К основным клиническим признакам НО относятся голубые склеры, потеря слуха, аномалия дентина, повышенная ломкость костей, нарушения роста и осанки с развитием характерных инвалидизирующих деформаций костей и сопутствующих проблем, включающих дыхательные, неврологические, сердечные, почечные нарушения. НО встречается как у мужчин, так и у женщин. До сих пор не определена степень генетической гетерогенности заболевания. На сегодняшний день известно 20 генов, вовлеченных в патогенез НО, и исследователи разных стран продолжают искать новые гены. В последнее десятилетие стало известно, что аутосомно-рецессивные, аутосомно-доминантные и Х-сцепленные мутации в широком спектре генов, кодирующих белки, которые участвуют в синтезе коллагена I типа, его процессинге, секреции и посттрансляционной модификации, а также в белках, которые регулируют дифференцировку и активность костеобразующих клеток, вызывают НО. Мутации в гене IFITM5, также называемом BRIL (bone-restricted IFITM-like protein), участвующем в формировании остеобластов, приводят к развитию НО типа V. До 5% пациентов имеют НО типа V, который характеризуется образованием гиперпластического каллуса после переломов, кальцификацией межкостной мембраны предплечья и сетчатым рисунком ламелирования, наблюдаемого при гистологическом исследовании кости. В 2012 г. гетерозиготная мутация (c.-14C> T) в 5’-нетранслируемой области (UTR) гена IFITM5 была идентифицирована как основная причина НО V типа. В представленной работе проведен анализ гена IFITM5 и идентифицирована мутация c.-14C>T, возникшая de novo, у одного пациента с НО, которому впоследствии был установлен V тип заболевания. Также выявлены три известных полиморфных варианта: rs57285449; c.80G>C (p.Gly27Ala) и rs2293745; c.187-45C>T и rs755971385 c.279G>A (p.Thr93=) и один ранее не описанный вариант: c.128G>A (p.Ser43Asn) AGC>AAC (S/D), которые не являются патогенными. В статье уделяется внимание особенностям клинических проявлений НО V типа и рекомендуется определение мутации c.-14C>T в гене IFITM5 при подозрении на данную форму заболевания. A study was made of interferon-induced transmembrane protein 5 gene (IFITM5) in 99 patients with osteogenesis imperfecta (OI) from 86 unrelated families and a search for pathogenic gene variants involved in the formation of the disease phenotype. OI is a clinically and genetically heterogeneous hereditary disease of the connective tissue, the main clinical manifestation of which is multiple fractures, starting from the natal period of life, often leading to disability from childhood. The main clinical signs of OI include blue sclera, hearing loss, anomaly of dentin, increased fragility of bones, impaired growth and posture, with the development of characteristic disabling bone deformities and associated problems, including respiratory, neurological, cardiac, and renal disorders. OI occurs in both men and women. The degree of genetic heterogeneity of the disease has not yet been determined. To date, 20 genes are known to be involved in the pathogenesis of OI, and researchers from different countries continue to search for new genes. In the last decade, it has become known that autosomal recessive, autosomal dominant and X-linked mutations in a wide range of genes encoding proteins that are involved in the synthesis of type I collagen, its processing, secretion and post-translational modification, as well as in proteins that regulate the differentiation and activity of bone-forming cells cause OI. Mutations in the IFITM5 gene, also called BRIL (bone-restricted IFITM-like protein), involved in the formation of osteoblasts, lead to the development of OI type V. Up to 5% of patients have OI type V, which is characterized by the formation of a hyperplastic callus after fractures, calcification of the interosseous membrane of the forearm, and a mesh lamellar pattern observed during histological examination of the bone. In 2012, a heterozygous mutation (c.-14C> T) in the 5’-untranslated region (UTR) of the IFITM5 gene was identified as the main cause of OI type V. In the present work, the IFITM5 gene was analyzed and the de novo c.-14C> T mutation was identified in one patient with OI who was subsequently diagnosed with type V of the disease. Three known polymorphic variants were also identified: rs57285449; c.80G> C (p.Gly27Ala) and rs2293745; c.187-45C> T and rs755971385 c.279G> A (p.Thr93 =) and one previously undescribed variant: c.128G> A (p.Ser43Asn) AGC> AAC (S / D), which were not pathogenic. The article focuses on the features of the clinical manifestations of OI type V, and it is recommended to determine the c.-14C> T mutation in the IFITM5 gene if this form of the disease is suspected.


2012 ◽  
pp. 74-84
Author(s):  
Thi Kieu Nhi Nguyen

Objectives: 1. Estimating the ratios of clinical and paraclinical signs of post-term newborns hospitalized at Pediatric Department of Hue University Hospital. 2. Identifying the relation between clinical signs and paraclinical signs. Materials and Method: 72 post- term babies < 7 days of life hospitalized at NICU from 2010/5 to 2011/4. Classification of post - term newborn was based on WHO 2003: gestational age ≥ 42 weeks with clinical manifestations: desquamation on press with fingers or natural desquamation, withered or meconial umbilicus, meconial long finger nails (*) or geatational age still < 42 weeks with theses clinical manifestations (*). Data were recorded on a clinical record form. Per-protocol analysis of clinical outcomes was performed by using Medcalc 11.5 and Excell 2007. Analyses used the χ2 test or Fisher's exact test for categorical data; Student's t test was used for continuous data and the Mann-Whitney U test for nonparametric data. Data were presented as means or proportions with 95% CIs. Results: Clinical characteristics: Tachypnea and grasp were main reasons of hospitalisation (48.61%). Poor feeding, vomitting (16.67%). Asphyxia (8.34%). Jawndice (6.94%). Hypothermia < 36.50C (13.89%), fever (13.89%). Tachypnea (59.72%). Bradycardia (1.39%). Poor feeding (11.11%). Hypertonia (9.72%). Paraclinical characteristics: Erythrocytes < 4.5.1012/l (51.39%), Leucocytes 5 – 25.103/mm3 (81.94%), Thrombocytes 100- 400.103/mm3 (94.44%). Hemoglobinemia < 10mg/l (67.61%). Maternal characteristics: Menstrual cycles regular (75%). Primiparity (75%). Amniotic volume average (70.42%), little (29.58%). Aminiotic liquid clair (62.5%), aminiotic liquid yellow (4.17%), aminiotic meconial liquid (33.33%). Maternal manifestation of one of many risk factors consist of genital infection; urinary infection; fever before, during, after 3 days of birth; prolonged delivery; medical diseases influence the foetus (75%). The relation between clinical signs and paraclinical signs: There was significantly statistical difference: between gestationnal age based on obstetrical criteria and amniotic volume on ultrasound (p < 0.05); between birth weight and glucosemia p < 0.02). There was conversional correlation of average level between erythroctes number and respiratory rate (r = - 0.5158; p < 0,0001), concordance correlation of weak level betwwen leucocytes number and respiratory rate r = 0.3045; p = 0.0093). Conclusion: It should made diagnosis of postterm baby based on degree of desquamation. The mother who has menstrual cycles regular is still delivered of a postterm baby. A postterm baby has the individual clinical and paraclinical signs.


Author(s):  
P. R. Chavelikar ◽  
G. C. Mandali ◽  
D. M. Patel

Ruminal acidosis is one of the most important clinical emergencies in sheep and goats resulting into high mortality rate. In the present study, eight healthy farm goats and 24 goats presented to the TVCC of the college with clinical signs of ruminal acidosis like anorexia, tympany, increased pulse and respiratory rate, reduced body temperature, doughy rumen, enteritis, oliguria, grinding of teeth, purulent nasal discharge, muscle twitching, arched back, dehydration and recumbency with rumen liquor pH below 6 were examined for haematological alterations using autohaematoanalyzer. Among various haematological parameters evaluated from acidotic goats, the mean values of Hb (12.21±0.17 vs. 10.86±0.15 g/dl), TEC (14.28±0.16 vs. 12.04±0.36 ×106/ μl), TLC (13.43±0.11 vs. 11.11±0.27 ×103/μl), PCV (36.91±0.53 vs. 29.88±0.55%), neutrophils (64.54±0.93 vs. 28.13±0.92%), MCV (23.38±0.37 vs. 19.38±1.34 fl) and MCH (7.03±0.08 vs. 6.31±0.25 pg) were found significantly increased, while the mean values of lymphocytes (28.00±0.82 vs. 65.38±0.80%) and MCHC (24.55 ±0.26 vs. 34.88±0.97 g/dl) were decreased significantly from the base values of healthy goats. It was concluded that ruminal acidosis induced due to accidental heavy ingestion of readily fermentable carbohydrate rich grains and food waste significantly altered the haematological profile concurrent with clinical manifestations in goats, and hence can be used to assess the severity of the disease.


2021 ◽  
Vol 10 (15) ◽  
pp. 3239
Author(s):  
Miguel A. Ortega ◽  
Oscar Fraile-Martínez ◽  
Cielo García-Montero ◽  
Miguel A. Álvarez-Mon ◽  
Chen Chaowen ◽  
...  

Chronic venous disease (CVD) is a multifactorial condition affecting an important percentage of the global population. It ranges from mild clinical signs, such as telangiectasias or reticular veins, to severe manifestations, such as venous ulcerations. However, varicose veins (VVs) are the most common manifestation of CVD. The explicit mechanisms of the disease are not well-understood. It seems that genetics and a plethora of environmental agents play an important role in the development and progression of CVD. The exposure to these factors leads to altered hemodynamics of the venous system, described as ambulatory venous hypertension, therefore promoting microcirculatory changes, inflammatory responses, hypoxia, venous wall remodeling, and epigenetic variations, even with important systemic implications. Thus, a proper clinical management of patients with CVD is essential to prevent potential harms of the disease, which also entails a significant loss of the quality of life in these individuals. Hence, the aim of the present review is to collect the current knowledge of CVD, including its epidemiology, etiology, and risk factors, but emphasizing the pathophysiology and medical care of these patients, including clinical manifestations, diagnosis, and treatments. Furthermore, future directions will also be covered in this work in order to provide potential fields to explore in the context of CVD.


2019 ◽  
Vol 71 (3) ◽  
pp. 630-636 ◽  
Author(s):  
Claudia A M Löwik ◽  
Javad Parvizi ◽  
Paul C Jutte ◽  
Wierd P Zijlstra ◽  
Bas A S Knobben ◽  
...  

Abstract Background The success of debridement, antibiotics, and implant retention (DAIR) in early periprosthetic joint infection (PJI) largely depends on the presence of a mature biofilm. At what time point DAIR should be disrecommended is unknown. This multicenter study evaluated the outcome of DAIR in relation to the time after index arthroplasty. Methods We retrospectively evaluated PJIs occurring within 90 days after surgery and treated with DAIR. Patients with bacteremia, arthroscopic debridements, and a follow-up &lt;1 year were excluded. Treatment failure was defined as (1) any further surgical procedure related to infection; (2) PJI-related death; or (3) use of long-term suppressive antibiotics. Results We included 769 patients. Treatment failure occurred in 294 patients (38%) and was similar between time intervals from index arthroplasty to DAIR: the failure rate for Week 1–2 was 42% (95/226), the rate for Week 3–4 was 38% (143/378), the rate for Week 5–6 was 29% (29/100), and the rate for Week 7–12 was 42% (27/65). An exchange of modular components was performed to a lesser extent in the early post-surgical course compared with the late course (41% vs 63%, respectively; P &lt; .001). The causative microorganisms, comorbidities, and durations of symptoms were comparable between time intervals. Conclusions DAIR is a viable option in patients with early PJI presenting more than 4 weeks after index surgery, as long as DAIR is performed within at least 1 week after the onset of symptoms and modular components can be exchanged.


2002 ◽  
Vol 2 (3) ◽  
pp. 206-215 ◽  
Author(s):  
Alexander R. Vaccaro ◽  
Kazuhiro Chiba ◽  
John G. Heller ◽  
Tushar Ch. Patel ◽  
John S. Thalgott ◽  
...  
Keyword(s):  

2008 ◽  
Vol 22 (11) ◽  
pp. 923-930 ◽  
Author(s):  
Gordon D McLaren ◽  
Christine E McLaren ◽  
Paul C Adams ◽  
James C Barton ◽  
David M Reboussin ◽  
...  

BACKGROUND: Patients with hemochromatosis may suffer organ damage from iron overload, often with serious clinical consequences.OBJECTIVE: To assess prevalences of self-reported symptoms and clinical signs and conditions in persons homozygous for the hemochromatosis gene (HFE)mutation (C282Y) identified by screening.METHODS: Participants were adults 25 years of age or older enrolled in the Hemochromatosis and Iron Overload Screening (HEIRS) Study. C282Y homozygotes (n=282) were compared with control participants without theHFEC282Y or H63D alleles (ie, wild type/wild type; n=364).RESULTS: Previously diagnosed C282Y homozygotes and newly diagnosed homozygotes with elevated serum ferritin levels had higher prevalences of certain symptoms such as chronic fatigue (OR 2.8; 95% CI 1.34 to 5.95, and OR 2.0; 95% CI 1.07 to 3.75, respectively), and had more hyperpigmentation on physical examination (OR 4.7; 95% CI 1.50 to 15.06, and OR 3.7; 95% CI 1.10 to 12.16, respectively) and swelling or tenderness of the second and third metacarpophalangeal joints (OR 4.2; 95% CI 1.37 to 13.03, and OR 3.3; 95% CI 1.17 to 9.49, respectively) than control subjects. Joint stiffness was also more common among newly diagnosed C282Y homozygotes with elevated serum ferritin than among control subjects (OR 2.7; 95% CI 1.38 to 5.30). However, the sex- and age-adjusted prevalences of self-reported symptoms and signs of liver disease, heart disease, diabetes and most other major clinical manifestations of hemochromatosis were similar in C282Y homozygotes and control subjects.CONCLUSIONS: Some symptoms and conditions associated with hemochromatosis were more prevalent among C282Y homozygotes identified by screening than among control subjects, but prevalences of most outcomes were similar in C282Y homozygotes and controls in this primary care-based study.


1975 ◽  
Vol 142 (3) ◽  
pp. 785-789 ◽  
Author(s):  
R Tarrab-Hazdi ◽  
A Aharonov ◽  
O Abramsky ◽  
I Yaar ◽  
S Fuchs

Passive transfer of experimental autoimmune myasthenia (EAM) was performed with lymph node cells from donor guinea pigs immunized with purified acetylcholine receptor (AChR) from Torpedo californica. Recipient animals revealed the same clinical signs and electromyographic patterns as observed in actively challenged animals. These phenomena are parallel to the clinical manifestations of the human disease myasthenia gravis, in which cellular response to AChR was recently demonstrated.


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