Myocutane und fasciocutane freie LAppen zur Defektdeckung am Unterschenkel und Fuß

Verglichen werden freie myocutane Lappenplastiken, wie der Latissimus dorsi-Lappen, der Gracilis-Lappen und der untere Gluteallappen, sowie fasciocutane Lappen, wie der Scapularlappen in ihrer Anwendung zur Defektdeckung an Unterschenkel und Fuß. Es zeigte sich, daß myocutane Lappen eher geeignet sind tiefe Defekte mit Knochenverlusten zu füllen, sie stellen ein gutes Lager für eine Spongiosaplastik dar. Fasciocutane Lappen eignen sich eher zur Deckung flächiger Defekte. Sie zeigen auch ohne Muskulatur eine gute Durchblutung durch das epifasciale Gefäßnetz. Sie sind dünner als myocutane Lappen und benötigen bei großen Defekten an der Empfängerzone keine zusätzliche Spalthauttransplantation

10 years of experience with autogenous microsurgical lymphvessel-transplantation

The authors report their experience with the autogenous microsurgical lymphvessel transplantation for the treatment of upper (n = 60, 55 females and 5 males) and lower (n = 35, 10 females and 25 males, primary lyphredemas = 11, secondary lymphredemas = 24) limb edemas. Regarding the volume measurements before and after lymphvessel - transplantation in 58 patients there was a reduction of volume differences between healthy and affected arms of more than the half in 76 % of the patients after a mean follow-up period of 2 1/2 years. In 28 patients with unilateral redemas of the lower extremities the volume reduction after a mean follow-up period of I 1/2 year compared to the healthy legs was more than 50 % in 20 patients. As complications in the early period 2 postoperative erysipelas were seen. One patient developed a Iymph cyst in the groin and one patient had a postthrombotic lower leg rederna. The authors conclude that lymphvessel transplantations therefore seem to be a method to enhance significantly the lymphatic transport if by conservation me ans alone no long term success is seen

The multisensory basis of the self:From body to identity to others

By grounding the self in the body, experimental psychology has taken the body as the starting point for a science of the self. One fundamental dimension of the bodily self is the sense of body ownership that refers to the special perceptual status of one’s own body, the feeling that “my body” belongs to me. The primary aim of this review article is to highlight recent advances in the study of body ownership and our understanding of the underlying neurocognitive processes in three ways. I first consider how the sense of body ownership has been investigated and elucidated in the context of multisensory integration. Beyond exteroception, recent studies have considered how this exteroceptively driven sense of body ownership can be linked to the other side of embodiment, that of the unobservable, yet felt, interoceptive body, suggesting that these two sides of embodiment interact to provide a unifying bodily self. Lastly, the multisensorial understanding of the self has been shown to have implications for our understanding of social relationships, especially in the context of self–other boundaries. Taken together, these three research strands motivate a unified model of the self inspired by current predictive coding models

Serpentinite weathering and implications for Mars

In the search for life on Mars near-surface soil environments may be important habitats for life accessible to future missions. Serpentinite rocks have been documented on Mars, as well as other clay minerals including smectite and kaolinites. Previous studies of soils formed on serpentinites on Earth have documented the formation of extensive clays. Serpentinites are additionally of interest as habitats for life such as methanogens. Here we examine weathering of serpentinites from bedrock to soil surface, as a potential route for the formation of clay minerals on Mars from abundant ultramafic minerals. We additionally test for the presence of Fe-oxidizing bacteria in weathered serpentinite rocks. Fe-oxidizing bacteria have been previously demonstrated to affect dissolution rates of ultramafic minerals, and may produce important biosignatures