Knöcherne Stressreaktionen des Fußes im Sport

Stress reactions and stress fractures are defined as structural damage to bone caused by repetitive stress or stereotypical loading. The balance between loading and unloading of bone is disrupted in stress reactions and stress fractures through the sport-specific demands and by the exogenous or endogenous risk factors present. In sports orthopedics the localization of stress reactions and stress fractures are subdivided into high risk fractures and low risk fractures. Conventional diagnostic radiology can initially be inconclusive. With symptoms persisting over 2 weeks further diagnostics using magnetic resonance imaging (MRI) should be performed. In the area of the foot stress reactions and stress fractures can often occur bilaterally or multifocally and most commonly affect the second metatarsals followed by the third metatarsals. Fractures of the fifth metatarsal, second metatarsal base, medial malleolus as well as navicular and sesamoid fractures are high risk fractures requiring special clinical and radiological monitoring. Basically, conservative treatment using the 2-phase model is the treatment of choice. In delayed union or severe pain surgical treatment is indicated.     

Myokardiales Risiko bei Karotisendarteriektomie und Stent

Carotid stenosis is an important cause of ischaemic stroke. Carotid endarterectomy (CEA) reduces the risk of stroke among patients with symptomatic and asymptomatic carotid stenosis. Stent treatment has emerged as an alternative to surgery but is associated with a higher risk of periprocedural stroke. Randomised trials have yielded conflicting results regarding the risk of myocardial infarction (MI) with stenting and CEA. These differences are mostly explained by differences between trials in study populations, as well as assessment and definition of MI. Considering all available randomised trial data, periprocedural MI is more common with CEA than with stent treatment. As with periprocedural stroke, periprocedural MI also leads to a decrease in long-term survival. Thus, MI must be regarded a serious adverse event complicating carotid interventions. Stent treatment therefore represents an alternative to CEA among patients with clear indication for carotid revascularisation who are considered at increased risk for coronary events.     

Die Olekranonosteotomie

In recent years the increase of interest for surgery of the elbow has fostered the development of new and modified triceps sparing approaches. Olecranon osteotomy is a widely accepted method especially for open reduction and internal fixation of displaced intra-articular fractures because it provides excellent exposure of the joint surfaces. Due to several reports describing numerous complications, the enthusiasm for this procedure is currently limited. Several intra-articular and extra-articular techniques for refixation of the olecranon have been developed to limit these complications and good results have been obtained. This paper describes various techniques, analyzes advantages and disadvantages and shows alternative ways and solutions for different indications.     

Zystektomie im Alter

Bladder cancer is a carcinoma of the elderly population. The highest incidence of bladder cancer is between the ages of 70 and 80 years old. Radical cystectomy remains the gold standard for muscle invasive bladder cancer treatment. In this article different aspects of radical cystectomy in elderly patients are reviewed. The Pubmed-MEDLINE database was searched using the following keywords: radical, cystectomy, elderly and age.     

Prinzipien des perioperativen Gerinnungsmanagements

The coagulation system is a complex network of interacting proteins and cells with extensive sensitivity, amplification and control pathways. The system represents a delicate balance between procoagulant and anticoagulant as well as profibrinolytic and antifibrinolytic activities. Clinically relevant phenotypes, e.g. bleeding and thrombosis, occur immediately when this balance is no longer in equilibrium. A correct understanding of the complex coagulation pathophysiology in the perioperative setting is essential for an effective treatment. In a bleeding patient, patient’s history, clinical findings, routine and advanced laboratory coagulation testing as well as point-of-care coagulation monitoring help to reliably and readily identify the underlying coagulation disorder. Modern coagulation management is proactive, individualized, balanced and follows clearly defined algorithms. Coagulopathic bleeding can be successfully controlled with specific interventions in the coagulation system.