Matthias F. J. Hofer

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BACKGROUND Treatment of intraoral malignant tumors often leads to continuity defects of the mandible. Whereas the use of free vascularised flaps has shortcomings regarding donor site morbidity and a worse-fitting bone geometry, the nonvascularized iliac crest graft could be an alternative option. The purpose of this study was to describe the treatment(More)
PURPOSE We aimed to evaluate a standardized ultrasonography (US) algorithm for the visualization of pathologic para-aortic tissue in retroperitoneal fibrosis (RPF). MATERIALS AND METHODS Thirty-five patients with lumbar RPF of typical extent, as determined by abdominal magnetic resonance imaging, were included. Examinations were conducted using(More)
To prospectively evaluate four non-invasive markers of cartilage quality—T2* mapping, native T1 mapping, dGEMRIC and ΔR1—in healthy volunteers and rheumatoid arthritis (RA) patients. Cartilage of metacarpophalangeal (MCP) joints II were imaged in 28 consecutive subjects: 12 healthy volunteers [9 women, mean (SD) age 52.67 (9.75) years, range 30–66] and 16(More)
 Objectives. To evaluate quality of life in patients after tumour resection, to assess different dimensions of quality of life, to compare a newly designed questionnaire with the Nottingham Health Profile.  Subjective. A non-selected neurosurgically treated series of patients with meningiomas was investigated with reference to quality of life as a judgement(More)
UNLABELLED Quality of life (QoL) in head and neck cancer patients has been of increasing interest for some years. Unfortunately, only poor data exist regarding the impact of professional psychological support on QoL. OBJECTIVES The purpose of this study was to investigate psychological aspects of QoL as well as the potential need for additional(More)
Many realistic scenarios call for answers to questions involving vague expressions like almost all, about half, or at least about a third. We present a modular extension of classical first-order queries over relational databases, with binary, proportional, semi-fuzzy quantifiers modeling such expressions via random sampling. The extended query language has(More)
Extending Hintikka’s game for the evaluation of classical formulas, we explore the realm of quantifier rules that can be defined by combining several moves consisting of choices by the two strategic players, but also by a third non-strategic player ‘Nature’, representing random choices. The simple format of Hintikka-style games is compared to the seemingly(More)
OBJECTIVE Sleep disturbance is reported to be frequent in epilepsy. The role of comorbidity, which is frequently accompanied by sleep disturbance, has not been investigated. The present study assessed sleep disorders and circadian rhythm in patients with epilepsy, in whom relevant comorbidity was carefully excluded. METHODS Two hundred patients with(More)
AIM The biocompatibility of human osteoblasts (HOB) and human unrestricted somatic stem cells (USSCs) with membranes (BioGide®, GORE-TEX®, GENTA-FOIL resorb®, RESODONT®, BioMend®, BioMend® Extend™) was evaluated. MATERIALS AND METHODS After osteogenic differentiation (dexamethasone, ascorbic acid and β-glycerolphosphate) cells were seeded on membranes. On(More)