Arthroscopic Fixation of Cell Free Polymer-Based Cartilage Implants with a Bioinspired Polymer Surface on the Hip Joint: A Cadaveric Pilot Study
| Autor: | Matthias Lahner, Christian Duif, Andreas Ficklscherer, Christian Kaps, Lukas Kalwa, Tobias Seidl |
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Article Subject
Cell-Free System Tissue Scaffolds Surface Properties lcsh:R lcsh:Medicine Pilot Projects 600 Technik Medizin angewandte Wissenschaften::610 Medizin und Gesundheit Prosthesis Design Equipment Failure Analysis Prosthesis Implantation Arthroscopy Cartilage Biomimetic Materials Absorbable Implants Materials Testing Cadaver Humans Hyaluronic Acid Polyglycolic Acid Hip Injuries Research Article |
| Zdroj: | BASE-Bielefeld Academic Search Engine BioMed Research International BioMed Research International, Vol 2014 (2014) |
| DOI: | 10.1155/2014/717912 |
| Popis: | This study investigates the adhesion capacity of a polyglycolic acid- (PGA-) hyaluronan scaffold with a structural modification based on a planar polymer (PM) surface in a cadaver cartilage defect model. Two cadaver specimens were used to serially test multiple chondral matrices. In a cadaver hip model, cell free polymer-based cartilage implants with a planar bioinspired PM surface (PGA-PM-scaffolds) were implanted arthroscopically on 10 mm × 15 mm full-thickness femoral hip cartilage lesions. Unprocessed cartilage implants without a bioinspired PM surface were used as control group. The cartilage implants were fixed without and with the use of fibrin glue on femoral hip cartilage defects. After 50 movement cycles and removal of the distraction, a rearthroscopy was performed to assess the outline attachment and integrity of the scaffold. The fixation techniques without and with fibrin fixation showed marginal differences for outline attachment, area coverage, scaffold integrity, and endpoint fixation after 50 cycles. The PGA-PM-scaffolds with fibrin fixation achieved a higher score in terms of the attachment, integrity, and endpoint fixation than the PGA-scaffold on the cartilage defect. Relating to the outline attachment, area coverage, scaffold integrity, and endpoint fixation, the fixation with PGA-PM-scaffolds accomplished significantly better results compared to the PGA-scaffolds (P = 0.03752, P = 0.03078, P = 0.00512, P = 0.00512). PGA-PM-scaffolds demonstrate increased observed initial fixation strength in cadaver femoral head defects relative to PGA-scaffold, particularly when fibrin glue is used for fixation. |
| Databáze: | OpenAIRE |
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