[Osteonecrosis of the jaws: real and unreal scares]


DECEMBER 23, 2011

LAM KID - 2011;1(03)

[Osteonecrosis caused by bisphosphonates has been known for a long time, but it is still not widely known. Some people overestimate the danger caused by this disease, whereas others underrate it. In this paper, we summerise data from the international literature and our experiences concerning 93 patients treated at our clinic. We discuss the already known details of the pathomechanism of this disease, its risk factors, the diagnostic methods, the specific stages of the disease and the treatment approaches. Considering the difficulties of treatment, we can't emphasise enough the importance of prevention, since the development of this complication can be minimised even in patients at risk with dental sanation before the bisphosphonate therapy and/or with further intervention performed with antibiotic preventive therapy. We must also point out the importance of early diagnosis and of directing these patients to the appropriate specialist units.]



Further articles in this publication


[The story of DEXA machines]



[The pathogenic and clinical significance of the RANK-RANKL-osteoprotegerin system in rheumatoid arthritis]


[Rheumatoid arthritis (RA) is characterised by increased local and generalised bone resorption, which manifests in the develoment of marginal erosions and generalised osteoporosis, respectively. An increasing number of data suggest that lymphocytes, proinflammatory cytokines and other mediators involved in inflammation contribute to arthritic bone resorption. Therefore, the term ‘osteoimmunology’ has also become widely used. In RA, Receptor Activator of Nuclear Factor kappa B (RANK) and its ligand (RANKL) play a crucial role in bone resorption. These proteins, which belong to the tumor necrosis factor a (TNF-a) receptor and TNF ligand superfamilies, respectively, activate osteoclasts while interacting with T cells, synovial fibroblasts and other cytokines (e.g. IL-1, IL-17), which results in bone resorption. Osteoprotegerin (OPG) is a decoy receptor that also belongs to the TNF receptor family and inhibits RANK-RANKL interactions. There is increased RANKL production and decreased OPG production in RA. The interaction of RANKL with IL-17 is particularly important. Regarding therapy, sulfasalazine, methotrexate and biological agents, especially TNF inhibitors suppress RANKL-mediated bone resorption and thus the development of joint erosions. RANKL-RANK interaction can be directly inhibited by recombinant OPG or anti-RANKL antibody (denosumab). Among these agents, denosumab gave promising results in experiments performed in animal models of arthritis. These were followed by a phase II human RA trial, which proved that denosumab decreased MRI erosion scores in RA.]


[The results of the study - Calcium supplementation as a part of basic therapy of osteoporosis is more than a routine step]

LAKATOS Péter, SPEER Gábor, DOMBAI Péter, ZAJZON Gergely

[Calcium intake is considered the base therapy of osteoporosis treatment. It is known that in case of inadequate calcium intake, specific anti-osteoporotic drugs are inefficient. In the present study, we aimed to investigate the alimentary and supplementary calcium intake among Hungarian osteoporotic patients, using a nationwide representative survey. Patients with osteoporosis were enrolled in the study. We determined the total alimentary calcium intake and the average supplementary dose. In some cases, total calcium intake was lower than recommended, in other cases it was significantly higher than that. In some cases, bone density showed a positive correlation with calcium intake. Vitamin D supplementation complied with current recommendations.]


[Treatment of postmenopausal osteoporotic women with strontium ranelate: results at 10 years]



[Vitamin D determination: preanalytical and analytical points of view]

BHATTOA Harjit Pál

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Related contents

Clinical Neuroscience

Risk factors for ischemic stroke and stroke subtypes in patients with chronic kidney disease

GÜLER Siber, NAKUS Engin, UTKU Ufuk

Background - The aim of this study was to compare ischemic stroke subtypes with the effects of risk factors, the relationship between grades of kidney disease and the severity of stroke subtypes. Methods - The current study was designed retrospectively and performed with data of patients who were hospitalised due to ischemic stroke. We included 198 subjects who were diagnosed with ischemic stroke of Grade 3 and above with chronic kidney disease. Results - In our study were reported advanced age, coronary artery disease, moderate kidney disease as the most frequent risk factors for cardioembolic etiology. Hypertension, hyperlipidemia, smoking and alcohol consumption were the most frequent risk factors for large-artery disease. Female sex and anaemia were the most frequent risk factors for small-vessel disease. Dialysis and severe kidney disease were the most frequent risk factors in unknown etiologies, while male sex, diabetes mellitus, prior stroke and mild kidney disease were the most frequent risk factors for other etiologies. National Institute of Health Stroke Scale (NIHSS) scores were lower for small-vessel disease compared with other etiologies. This relation was statistically significant (p=0.002). Conclusion - In order to improve the prognosis in ischemic stroke with chronic kidney disease, the risk factors have to be recognised and the treatment options must be modified according to those risk factors.

Lege Artis Medicinae



[Bisphosphonates are used in the treatment of malignant diseases with bone metastases and of osteoporosis. The currently available bisphosphonates have a wide range of effectiveness, tolerability and dosing profiles. In metastatic disease, bisphosphonate therapy is aimed at the correction of hypercalcaemia and the reduction of skeletal-related events due to malignancy metastatic to bone. Large clinical trials have shown that long-term administration of bisphosphonates can reduce skeletal-related events by 30 to 40% and significant analgesic effect is reached in at least 50% of the patients. The superiority of zoledronate to the old standard pamidronate has been proved in large randomized trials. Despite the fact that bisphosphonates are generally well tolerated, certain toxicities such as renal toxicity and osteonecrosis of the jaw should be considered with prolonged use.]

Journal of Nursing Theory and Practice

[Examination of cardio-vascular risk factors in the priority of atrial fibrillation]


[Objectives: Stroke-prophylaxis is the biggest question regarding atrial fibrillation. Their aim is to examine the risk factors, successfulness of frequency control, and the effectiveness of anticoagulant therapy. Methods: This quantitative cross-sectional study used a non-randomized sampling method. Enrollment criteria: anticoa-gulant therapy, atrial fibrillation, age 20-90 years, NYHA stage II. Excursion criteria: patients having elective intervention that influences INR rates. Patient data was collected from the records of the University of Pécs, Cardiology Clinic between 01.01.2012-31.12. They used linear regression, T-test, χ2-test, variance analysis (ANOVA), SPSS 20.0. Results: Significant correlation between BMI values-, systolic blood pressure-, modified medication and its effect on frequency control-, correct anticoagulant therapy, INR parameters and the increased risk of thromboembolia in patients with atrial fibrillation. (p<0.05) Conclusion: Stratification of risk factors and individual optimisation of anticoagulant therapy is important for effective stroke prevention and increased survival rate.]

Lege Artis Medicinae

[Cardiovascular risk factors and risk assessment]


[The author summarises the most important cardiovascular risk factors. Concerning public health, the three most important synergistic factors are smoking, hypertension and abnormal cholesterol. Abnormal total lipid profile, visceral obesity, elevated glucose and uric acid levels and hypertonia all contribute to the global cardiometabolic risk. A number of studies and metaanalyses have confirmed the correlations of the risk factors and cardiovascular events (organ damage, clinical events, mortality). The concomitant occurance of risk factors increases the rate of risk. Risk estimation methods have been designed on the basis of proven correlations and they have been continuously improved and made more reliable owing to the assessment of more and more factors.]

Lege Artis Medicinae


VOKÓ Zoltán, SZÉLES György, KARDOS László, NÉMETH Renáta, ÁDÁNY Róza

[INTRODUCTION - Here we present the descriptive epidemiology of stroke in Hungary including mortality, morbidity, functional limitation and inpatient care based on the most recent health statistical data. METHODS - Mortality data were analysed by direct and indirect standardisation, and geographical mapping based on empirical Bayesian smoothing. Morbidity data were obtained from the General Practitioners’ Morbidity Sentinel Station Program and the National Health Surveys. The latter also provided data on functional limitation. Data on inpatient service were taken from the European Hospital Morbidity Database of WHO. RESULTS - Hungarian stroke mortality continued to decrease in recent years, and the slope of the decrease was larger than in Western Europe. Stroke mortality was highest in the Northern- Hungarian Region, and in Somogy and Zala counties. The incidence of stroke was 1.5-2 times higher than in the developed countries in most age groups. Over 64 years of age, a decline of stroke incidence was observed, especially in men. In this age group approximately 10% of men and 7% of women had already had a stroke. Of these patients more than 10% needed assistance to get out of the bed, dress up, or eat. Hospitals reported more than 60 000 stroke cases in 2005. CONCLUSION - Despite the promising trends in stroke mortality and now also in morbidity, both indices are still rather high in Hungary compared to those in Western-Europe. The relatively favourable epidemiological changes, however, may be overridden by the increased stroke burden resulting from the aging of the population.]