13 results match your criteria: "German Institute for Cell and Tissue Replacement (DIZG[Affiliation]"
Orthopadie (Heidelb)
June 2024
R&D, German Institute for Cell and Tissue Replacement (DIZG, gGmbH), Haus 42, Köpenicker Str. 325, 12555, Berlin, Germany.
J Funct Biomater
May 2024
German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Haus 42, Köpenicker Str. 325, 12555 Berlin, Germany.
Treating severe dermal disruptions often presents significant challenges. Recent advancements have explored biological cell sprays as a promising treatment, but their success hinges on efficient cell delivery and complete wound coverage. This requires a good spray distribution with a small droplet size, high particle number, and ample surface coverage.
View Article and Find Full Text PDFOrthopadie (Heidelb)
May 2024
R&D, German Institute for Cell and Tissue Replacement (DIZG, gGmbH), Haus 42, Köpenicker Str. 325, 12555, Berlin, Germany.
Background: The use of allografts and autografts has been met with mixed views on whether allografts are a suitable alternative to autografts.
Question: We aimed to investigate if chemically sterilized allografts show similar rerupture rates to those reported in the literature for allografts and autografts in anterior (ACL) and posterior cruciate ligaments (PCL) and complex knee surgery.
Materials And Methods: Retrospective data on knee reconstructions performed between 2011 and 2015 with tendon/ligamnet allografts sterilized with peracetic acid were collected in the form of a questionnaire.
Front Bioeng Biotechnol
October 2023
Experimental Trauma Surgery, Department of Trauma, Hand and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany.
The purpose of this study was to evaluate the treatment potential of a human-derived demineralized scaffold, Spongioflex (SPX), in partial meniscal lesions by employing models. In the first step, the differentiation potential of human meniscal cells (MCs) was investigated. In the next step, the ability of SPX to accommodate and support the adherence and/or growth of MCs while maintaining their fibroblastic/chondrocytic properties was studied.
View Article and Find Full Text PDFShoulder Elbow
August 2023
German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Berlin, Germany.
Background: The purpose of this retrospective study was to analyze whether chemically sterilized tendon allografts perform as well as other non-sterilized allografts and autografts as described in the literature for anatomical acromioclavicular joint stabilization for the treatment of Rockwood III-V. Allografts are still described as a factor for higher re-rupture rates.
Methods: Retrospective data were collected from 21 acromioclavicular joint stabilizations performed by a single surgeon and performed between 2011 and 2014 using sterilized semitendinosus allografts.
J Funct Biomater
June 2023
German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany.
Bone defects and infections pose significant challenges for treatment, requiring a comprehensive approach for prevention and treatment. Thus, this study sought to evaluate the efficacy of various bone allografts in the absorption and release of antibiotics. A specially designed high-absorbency, high-surface-area carrier graft composed of human demineralized cortical fibers and granulated cancellous bone (fibrous graft) was compared to different human bone allograft types.
View Article and Find Full Text PDFCells
April 2023
Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany.
The classic two-stage masquelet technique is an effective procedure for the treatment of large bone defects. Our group recently showed that one surgery could be saved by using a decellularized dermis membrane (DCD, Epiflex, DIZG). In addition, studies with bone substitute materials for defect filling show that it also appears possible to dispense with the removal of syngeneic cancellous bone (SCB), which is fraught with complications.
View Article and Find Full Text PDFCell Tissue Bank
March 2023
Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
In Germany, bone allografts are widely used and their application in clinics has increased over the years. Successful use of allografts depends on many factors such as the procurement, processing, sterilization and the surgeon's surgical experience. Tissue banks have provided safe and sterile allografts for decades ranging from hard to soft tissue.
View Article and Find Full Text PDFBiomedicines
March 2022
Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany.
The Masquelet technique is used to treat large bone defects; it is a two-stage procedure based on an induced membrane. To improve the induced membrane process, demineralized bone matrix in granular (GDBM) and fibrous form (f-DBM) was tested with and without bone marrow mononuclear cells (BMC) as filling of the membrane against the gold standard filling with syngeneic cancellous bone (SCB). A total of 65 male Sprague-Dawley rats obtained a 5 mm femoral defect.
View Article and Find Full Text PDFCells
May 2021
Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany.
Regeneration of large bone defects is a major objective in trauma surgery. Bone marrow mononuclear cell (BMC)-supported bone healing was shown to be efficient after immobilization on a scaffold. We hypothesized that fibrous demineralized bone matrix (DBM) in various forms with BMCs is superior to granular DBM.
View Article and Find Full Text PDFJ Exp Orthop
March 2021
German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Haus 42, Köpenicker Str. 325, 12555, Berlin, Germany.
Purpose: Meniscus allograft transplantation (MAT) is a possible treatment for patients suffering with pain after meniscectomy. Here, peracetic acid (PAA) sterilised meniscus transplants were investigated on whether they would provide an adequate alternative to fresh-frozen transplants in their viscoelastic and mechanical properties.
Methods: In this analysis, 31 menisci donors (26 male and 5 female) were included.
Materials (Basel)
July 2020
Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany.
Eur J Trauma Emerg Surg
April 2020
Department of Trauma-, Hand and Reconstructive Surgery, University Hospital Frankfurt, Frankfurt, Germany.