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Gotz W.,University of Bonn | Lenz S.,University of Rostock | Reichert C.,University of Bonn | Henkel K.-O.,German Military Hospital Hamburg | And 7 more authors.
Folia Histochemica et Cytobiologica | Year: 2010

To test the probable osteoinductive properties of NanoBone®, a new highly non-sintered porous nano-crystalline hydroxylapatite bone substitute embedded into a silica gel matrix, granules were implanted subcutaneously and intramuscularly into the back region of 18 mini pigs. After periods of 5 and 10 weeks as well as 4 and 8 months, implantation sites were investigated using histological and histomorphometric procedures. Signs of early osteogenesis could already be detected after 5 weeks. The later periods were characterized by increasing membranous osteogenesis in and around the granules leading to the formation of bone-like structures showing periosteal and tendon-like structures with bone marrow and focal chondrogenesis. Bone formation was better in the subcutaneous than in the intramuscular implantation sites. This ectopic osteogenesis is discussed with regard to the nanoporosity and microporosity of the material, physico-chemical interactions at its surface, the differentiation of osteoblasts, the role of angiogenesis and the probable involvement of growth factors. The results of this preliminary study indicate that this biomaterial has osteoinductive potential and induces the formation of bone structures, mainly in subcutaneous adipose tissue in the pig. © Polish Histochemical et Cytochemical Society.


Hinck D.,German Military Hospital Hamburg | Franke A.,German Military Hospital Koblenz | Gatzka F.,German Military Hospital Hamburg
Military Medicine | Year: 2010

Despite surgical and technological advances, managing combat-related injuries remains challenging both within and outside of the war theater. Unique characteristics of a war theater such as environmental contamination, varying evacuation procedures, and differing levels of medical care, add to the complexity. The advent of body armor has increased blast survival rates and soldiers are surviving with increasingly mangled limbs that require lengthy, multifaceted care. An inherent high risk of infection contraindicates immediate closure for these wounds. There is growing reported use of negative pressure wound therapy with reticulated open-cell foam (NPWT/ROCF) as delivered by vacuum-assisted closure (VAC) therapy (KCI Licensing Inc., San Antonio, TX) as an adjunctive therapy in these open soft-tissue combat wounds. This review evaluates the efficacy of NPWT/ROCF for adjunctive treatment of wartime wounds. Following a literature review, data are summarized and presented.


PubMed | German Military Hospital Hamburg
Type: Journal Article | Journal: Military medicine | Year: 2010

Despite surgical and technological advances, managing combat-related injuries remains challenging both within and outside of the war theater. Unique characteristics of a war theater such as environmental contamination, varying evacuation procedures, and differing levels of medical care, add to the complexity. The advent of body armor has increased blast survival rates and soldiers are surviving with increasingly mangled limbs that require lengthy, multifaceted care. An inherent high risk of infection contraindicates immediate closure for these wounds. There is growing reported use of negative pressure wound therapy with reticulated open-cell foam (NPWT/ROCF) as delivered by vacuum-assisted closure (VAC) therapy (KCI Licensing Inc., San Antonio, TX) as an adjunctive therapy in these open soft-tissue combat wounds. This review evaluates the efficacy of NPWT/ROCF for adjunctive treatment of wartime wounds. Following a literature review, data are summarized and presented.

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