Purpose: The purpose of this study was to evaluate the biodegradation and biocompatibility of poly L-lactic acid (PLLA) implantable mesh under and conditions.
Methods: PLLA mesh was examined for changes in weight and tensile strength. The histology of the tissue around the PLLA implant was also evaluated.
Results: The weight and tensile strength of the PLLA prosthesis was stable for 180 days. In addition, the surface of the PLLA mesh was not digested under or conditions as determined by scanning electron microscope. Histologically, there were no significant changes in the diameters of implanted PLLA mesh and subtype fibers over the course of 180 days. Likewise, there were no significant changes in the number of inflammatory and mast cells after 180 days, nor was there an increase in the percentage of collagen surrounding the PLLA mesh.
Conclusions: The results indicate that PLLA prostheses have good rigidity and biocompatibility and .
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http://dx.doi.org/10.5213/inj.1734882.441 | DOI Listing |
Tissue Eng Part A
January 2025
Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Adipose tissue engineering requires effective strategies for regenerating adipose tissue, with adipose-derived stem cells (ASCs) being favored due to their robust self-renewal capacity and multipotent differentiation potential. In this study, the efficacy of poly-L-lactic acid (PLLA) mesh containing collagen sponge (CS), seeded with ASCs to promote adipose tissue formation, was investigated. PLLA-CS implants seeded with GFP-positive ASCs were inserted at high concentration (1 × 10 cells/implant, H-ASC) and low concentration (1 × 10 cells/implant, L-ASC), as were unseeded controls.
View Article and Find Full Text PDFJ Mech Behav Biomed Mater
February 2025
Department of Mechanical Engineering, University of Colorado, Boulder, CO, USA. Electronic address:
The treatment of bone defects with complex three-dimensional geometry presents challenges in terms of bone grafting and restoration. In this paper, we propose a rapid and effective method that uses 3D printing, ceramic casting, and the incorporation of mesh reinforcement to create load-bearing bone grafts with patient-specific three-dimensional geometry. Using two types of facial bones as examples, we show that this fabrication method has a high degree of geometrical fidelity.
View Article and Find Full Text PDFRegen Ther
June 2024
Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Background: Breast cancer is the most common cancer among women. Partial mastectomy is an alternative to mastectomy in early-stage breast cancer to restore a poor quality of life (QOL). However, the aesthetic satisfaction with this procedure is inadequate.
View Article and Find Full Text PDFBone
January 2025
Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215300, China. Electronic address:
Tissue engineering employs the use of bioactive materials to facilitate the filling and acceleration of bone defect healing, thereby introducing novel concepts to the field of in situ bone repair. Some studies have shown that periosteum plays an important role in bone regeneration and repair. In this study, biomimetic periosteum-bone scaffolds were prepared by depositing poly-L-lactic acid (PLLA) electrospun fibers on the surface of the gelatin/chitosan cryogel to mimic the bone and periosteum structure, respectively.
View Article and Find Full Text PDFAdv Healthc Mater
October 2024
Department of Biologic and Materials Science, School of Dentistry, University of Michigan, Ann Arbor, MI, 48109, USA.
Periodontal disease poses significant challenges to the long-term stability of oral health by destroying the supporting structures of teeth. Guided tissue regeneration techniques, particularly barrier membranes, enable local regeneration by providing an isolated, protected compartment for osseous wound healing while excluding epithelial tissue. Here, this study reports on a thermosensitive periodontal membrane (TSPM) technology designed to overcome the mechanical limitations of current membranes through a semi-interpenetrating network of high molecular weight poly(L-lactic acid) (PLLA) and in situ-polymerized mesh of poly(ε-caprolactone)diacrylate (PCL-DA), and poly lactide-co-glycolide diacrylate (PLGA-DA).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!