1
|
van Minnen BS, van Tienen TG. The Current State of Meniscus Replacements. Curr Rev Musculoskelet Med 2024:10.1007/s12178-024-09902-1. [PMID: 38744802 DOI: 10.1007/s12178-024-09902-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/29/2024] [Indexed: 05/16/2024]
Abstract
PURPOSE OF REVIEW The field of meniscus replacement is changing continuously, with new devices emerging and others disappearing from the market. With the current tendency to preserve the knee joint, meniscus implants may become more relevant than ever. The purpose of this review is to provide an overview of the current state of partial and total meniscus replacements that have been developed beyond the academic phase. The available clinical and pre-clinical data is evaluated, and omissions are identified. RECENT FINDINGS Recent systematic reviews have shown a lack of homogenous clinical data on the CMI and Actifit meniscal scaffolds, especially regarding long-term performance without concomitant surgical interventions. Clinical studies on the medial total meniscus prostheses NUsurface and Artimis are ongoing, with the NUsurface being several years ahead. New techniques for meniscus replacement are rapidly developing, including the Artimis lateral meniscus prosthesis and the MeniscoFix 3D-printed scaffold. All evaluated clinical studies point towards improved clinical outcomes after implantation of partial and total meniscus replacements. Long-term data on survival and performance is of low quality for CMI and Actifit and is unavailable yet for NUsurface and Artimis. It is of major importance that future research focuses on optimizing fixation methods and identifying the optimal treatment strategy for each patient group. New techniques for total and partial replacement of the medial and lateral meniscus will be followed with interest.
Collapse
Affiliation(s)
- B S van Minnen
- Orthopaedic Research Lab, Radboud University Medical Centre, Radboud Institute for Health Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
- ATRO Medical BV, Liessentstraat 9A, 5405 AH, Uden, The Netherlands.
| | - T G van Tienen
- Orthopaedic Research Lab, Radboud University Medical Centre, Radboud Institute for Health Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
- ATRO Medical BV, Liessentstraat 9A, 5405 AH, Uden, The Netherlands
| |
Collapse
|
2
|
Potolinca VO, Oprea S. New polyurethanes containing cycloaliphatic units in the hard segments. The influence of the microstructure on the thermo‐mechanical and surface properties. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Stefan Oprea
- “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
| |
Collapse
|
3
|
Zheng H, Huang W, He B, Tan H, Lin P, Zha Z. Positive effects of platelet-rich plasma (PRP) and a Sanguisorba officinalis polysaccharide on the proliferation and differentiation of anterior cruciate ligament (ACL) fibroblasts in vitro. Pharm Biol 2020; 58:297-305. [PMID: 32252578 PMCID: PMC7178881 DOI: 10.1080/13880209.2020.1743325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Context: Sanguisorba officinalis L. (Rosaceae), a famous traditional Chinese medicine. It was recently reported that its polysaccharide could facilitate collagen production.Objectives: We investigated the mechanism by which S. officinalis polysaccharide (SOWPa) and/or platelet-rich plasma (PRP) promote regenerative potential of anterior cruciate ligament (ACL) in vitro.Materials and methods: ACL fibroblasts were treated with SOWPa (25 and 100 mg/kg), PRP, PRP + SOWPa (25 and 100 mg/kg) or vehicle alone for 24, 48, or 72 h. Cell viability, migration ability and apoptosis were evaluated by MTT, transwell and flow cytometry, respectively. Western blot analysis was performed to assess associated protein expression.Results: PRP, SOWPa (100 mg/kg) or PRP + SOWPa (100 mg/kg) treatment for 72 h significantly improved the cell viability of ACL fibroblasts from 100 ± 7.5% (control) to 156.85 ± 12.82%, 188.08 ± 15.92%, and 223.67 ± 18.82%, respectively, which was evidenced by individual decreased apoptosis rate from 31.26 ± 2.35% (control) to 20.80 ± 1.89%, 18.01 ± 1.55% and 9.33 ± 0.78%. Furthermore, the motility of ACL fibroblasts was significantly improved with increased migrated cell number per field from 5 for control to 26 for PRP, 36 for SOWPa and 44 for PRP + SOWPa, respectively. Moreover, the protein expression of differentiation markers (RUNX2, ALP, BMP2 and Col I) and TLR-4 and phosphorylated p65 (p-p65) was inhibited by the above treatment.Discussion and conclusions: Data suggested that the addition of SOWPa to PRP increased the regenerative ability of ACL fibroblasts by blocking the TLR-4/NF-κB pathway.
Collapse
Affiliation(s)
- Hong Zheng
- Institute of Orthopedic Diseases and Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Department of Orthopedic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wenya Huang
- Department of Orthopedic Surgery, The People’s Hospital of Leizhou, Leizhou, China
| | - Bing He
- Department of Nursing, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hongchang Tan
- Department of Orthopedic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Pingzhi Lin
- Department of Orthopedic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Zhengang Zha
- Institute of Orthopedic Diseases and Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
- CONTACT Zhengang Zha Institute of Orthopedic Diseases and Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| |
Collapse
|
4
|
Inyang AO, Abdalrahman T, Bezuidenhout D, Bowen J, Vaughan CL. Suitability of developed composite materials for meniscal replacement: Mechanical, friction and wear evaluation. J Mech Behav Biomed Mater 2018; 89:217-226. [PMID: 30296703 DOI: 10.1016/j.jmbbm.2018.09.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 09/17/2018] [Indexed: 11/19/2022]
Abstract
The meniscus is a complex and frequently damaged tissue which requires a substitute capable of reproducing similar biomechanical functions. This study aims to develop a synthetic meniscal substitute that can mimic the function of the native meniscus. Medical grade silicones reinforced with nylon were fabricated using compression moulding and evaluated for mechanical and tribological properties. The optimal properties were obtained with tensile modulus increased considerably from 10.7 ± 2.9 MPa to 114.6 ± 20.9 MPa while compressive modulus was found to reduce from 2.5 ± 0.6 MPa to 0.7 ± 0.3 MPa. Using a tribometer, the coefficient of friction of 0.08 ± 0.02 was measured at the end of the 100,000 cycles. The developed composite could be an auspicious substitute for the native meniscus and the knowledge gained from this study is useful as it enhances the understanding of a potentially suitable material for meniscal implants.
Collapse
Affiliation(s)
- Adijat Omowumi Inyang
- Division of Biomedical Engineering, Human Biology Department, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa.
| | - Tamer Abdalrahman
- Division of Biomedical Engineering, Human Biology Department, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa.
| | - Deon Bezuidenhout
- Cardiovascular Research Unit, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa.
| | - James Bowen
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
| | - Chistopher Leonard Vaughan
- Division of Biomedical Engineering, Human Biology Department, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory 7925, Cape Town, South Africa.
| |
Collapse
|
5
|
Abstract
The complex ultrastructure of the meniscus determines its vital functions for the knee, the lower extremity, and the body. The most recent concise, reliable, and valid classification system for meniscal tears is the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) Classification, which takes into account the subsequent parameters: tear depth, tear pattern, tear length, tear location/rim width, radial location, location according to the popliteal hiatus, and quality of the meniscal tissue. It is the orthopaedic surgeon’s responsibility to combine clinical information, radiological images, and clinical experience in an effort to individualize management of meniscal tears, taking into account factors related to the patient and lesion. Surgeons should strive not to operate in most cases, but to protect, repair or reconstruct, in order to prevent early development of osteoarthritis by restoring the native structure, function, and biomechanics of the meniscus. Currently, there are three main methods of modern surgical management of meniscus tears: arthroscopic partial meniscectomy; meniscal repair with or without augmentation techniques; and meniscal reconstruction. Meniscus surgery has come a long way from the old slogan, “If it is torn, take it out!” to the currently accepted slogan, “Save the meniscus!” which has guided evolving modern treatment methods for meniscal tears. This last slogan will probably constitute the basis for newer alternative biological treatment methods in the future.
Cite this article: EFORT Open Rev 2018;3 DOI: 10.1302/2058-5241.3.170067.
Collapse
Affiliation(s)
- Mahmut Nedim Doral
- Hacettepe University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Department of Sports Medicine, Ankara, Turkey
| | - Onur Bilge
- Konya N.E. University, Meram Faculty of Medicine, Department of Orthopaedics and Traumatology, Department of Sports Medicine, Konya, Turkey
| | - Gazi Huri
- Hacettepe University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Ankara, Turkey
| | - Egemen Turhan
- Hacettepe University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Ankara, Turkey
| | - René Verdonk
- Ghent University, Faculty of Medicine, Department of Orthopaedics and Traumatology, De Pintelaan, Ghent, Belgium
| |
Collapse
|
6
|
Chudinov VS, Kondyurina IV, Shardakov IN, Svistkov AL, Osorgina IV, Kondyurin AV. Polyurethane Modified with Plasma-Ion Implantation for Medical Applications. Biophysics (Nagoya-shi) 2018. [DOI: 10.1134/s0006350918030053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
7
|
Kondyurina I, Wise SG, Ngo AKY, Filipe EC, Kondyurin A, Weiss AS, Bao S, Bilek MMM. Plasma mediated protein immobilisation enhances the vascular compatibility of polyurethane with tissue matched mechanical properties. Biomed Mater 2017; 12:045002. [DOI: 10.1088/1748-605x/aa6eb6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
8
|
Jia Q, Xia Y, Yin S, Hou Z, Wu R. Influence of well-defined hard segment length on the properties of medical segmented polyesterurethanes based on poly(ε-caprolactone-co-L-lactide) and aliphatic urethane diisocyanates. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1233416] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Qi Jia
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, China
| | - Yiran Xia
- Shandong Academy of Pharmaceutical Sciences, Shandong Provincial Key Laboratory of Biomedical Polymer, Jinan, China
| | - Shengnan Yin
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, China
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, China
| | - Ruxia Wu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, China
| |
Collapse
|
9
|
Lin Z, Zhao X, Chen S, Du C. Osteogenic and tenogenic induction of hBMSCs by an integrated nanofibrous scaffold with chemical and structural mimicry of the bone–ligament connection. J Mater Chem B 2017; 5:1015-1027. [DOI: 10.1039/c6tb02156e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A novel electrospinning nanofiber collecting device was designed and utilized to fabricate an integrated PCL nanofibrous scaffold with a “random–aligned–random” structure.
Collapse
Affiliation(s)
- Zifeng Lin
- Department of Biomedical Engineering
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Xiujuan Zhao
- Department of Biomedical Engineering
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Si Chen
- Department of Biomedical Engineering
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Chang Du
- Department of Biomedical Engineering
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| |
Collapse
|
10
|
Yin S, Xia Y, Jia Q, Hou ZS, Zhang N. Preparation and properties of biomedical segmented polyurethanes based on poly(ether ester) and uniform-size diurethane diisocyanates. Journal of Biomaterials Science, Polymer Edition 2016; 28:119-138. [DOI: 10.1080/09205063.2016.1252303] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shengnan Yin
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Yiran Xia
- Shandong Provincial Key Laboratory of Biomedical Polymer, Shandong Academy of Pharmaceutical Sciences, Jinan, China
| | - Qi Jia
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Zhao-Sheng Hou
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Na Zhang
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| |
Collapse
|
11
|
Lakes EH, Matuska AM, McFetridge PS, Allen KD. Mechanical Integrity of a Decellularized and Laser Drilled Medial Meniscus. J Biomech Eng 2016; 138:4032381. [PMID: 26720513 DOI: 10.1115/1.4032381] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Indexed: 12/31/2022]
Abstract
Since the meniscus has limited capacity to self-repair, creating a long-lasting meniscus replacement may help reduce the incidence of osteoarthritis (OA) after meniscus damage. As a first step toward this goal, this study evaluated the mechanical integrity of a decellularized, laser drilled (LD) meniscus as a potential scaffold for meniscal engineering. To evaluate the decellularization process, 24 porcine menisci were processed such that one half remained native tissue, while the other half was decellularized in sodium dodecyl sulphate (SDS). To evaluate the laser drilling process, 24 additional menisci were decellularized, with one half remaining intact while the other half was LD. Decellularization did not affect the tensile properties, but had significant effects on the cyclic compressive hysteresis and unconfined compressive stress relaxation. Laser drilling decreased the Young's modulus and instantaneous stress during unconfined stress relaxation and the circumferential ultimate strength during tensile testing. However, the losses in mechanical integrity in the LD menisci were generally smaller than the variance observed between samples, and thus, the material properties for the LD tissue remained within a physiological range. In the future, optimization of laser drilling patterns may improve these material properties. Moreover, reseeding the construct with cells may further improve the mechanical properties prior to implantation. As such, this work serves as a proof of concept for generating decellularized, LD menisci scaffolds for the purposes of meniscal engineering.
Collapse
|
12
|
Xu C, Yepez G, Wei Z, Liu F, Bugarin A, Hong Y. Synthesis and characterization of conductive, biodegradable, elastomeric polyurethanes for biomedical applications. J Biomed Mater Res A 2016; 104:2305-14. [PMID: 27124702 PMCID: PMC10947274 DOI: 10.1002/jbm.a.35765] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 04/23/2016] [Accepted: 04/26/2016] [Indexed: 11/11/2022]
Abstract
Biodegradable conductive polymers are currently of significant interest in tissue repair and regeneration, drug delivery, and bioelectronics. However, biodegradable materials exhibiting both conductive and elastic properties have rarely been reported to date. To that end, an electrically conductive polyurethane (CPU) was synthesized from polycaprolactone diol, hexadiisocyanate, and aniline trimer and subsequently doped with (1S)-(+)-10-camphorsulfonic acid (CSA). All CPU films showed good elasticity within a 30% strain range. The electrical conductivity of the CPU films, as enhanced with increasing amounts of CSA, ranged from 2.7 ± 0.9 × 10(-10) to 4.4 ± 0.6 × 10(-7) S/cm in a dry state and 4.2 ± 0.5 × 10(-8) to 7.3 ± 1.5 × 10(-5) S/cm in a wet state. The redox peaks of a CPU1.5 film (molar ratio CSA:aniline trimer = 1.5:1) in the cyclic voltammogram confirmed the desired good electroactivity. The doped CPU film exhibited good electrical stability (87% of initial conductivity after 150 hours charge) as measured in a cell culture medium. The degradation rates of CPU films increased with increasing CSA content in both phosphate-buffered solution (PBS) and lipase/PBS solutions. After 7 days of enzymatic degradation, the conductivity of all CSA-doped CPU films had decreased to that of the undoped CPU film. Mouse 3T3 fibroblasts proliferated and spread on all CPU films. This developed biodegradable CPU with good elasticity, electrical stability, and biocompatibility may find potential applications in tissue engineering, smart drug release, and electronics. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2305-2314, 2016.
Collapse
Affiliation(s)
- Cancan Xu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75093, USA
| | - Gerardo Yepez
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, USA
| | - Zi Wei
- Department of Material Science and Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Fuqiang Liu
- Department of Material Science and Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Alejandro Bugarin
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, USA
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75093, USA
| |
Collapse
|
13
|
Cucchiarini M, McNulty AL, Mauck RL, Setton LA, Guilak F, Madry H. Advances in combining gene therapy with cell and tissue engineering-based approaches to enhance healing of the meniscus. Osteoarthritis Cartilage 2016; 24:1330-9. [PMID: 27063441 DOI: 10.1016/j.joca.2016.03.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/17/2016] [Accepted: 03/25/2016] [Indexed: 02/02/2023]
Abstract
Meniscal lesions are common problems in orthopaedic surgery and sports medicine, and injury or loss of the meniscus accelerates the onset of knee osteoarthritis (OA). Despite a variety of therapeutic options in the clinics, there is a critical need for improved treatments to enhance meniscal repair. In this regard, combining gene-, cell-, and tissue engineering-based approaches is an attractive strategy to generate novel, effective therapies to treat meniscal lesions. In the present work, we provide an overview of the tools currently available to improve meniscal repair and discuss the progress and remaining challenges for potential future translation in patients.
Collapse
|
14
|
Hou Z, Zhang H, Qu W, Xu Z, Han Z. Biomedical segmented polyurethanes based on polyethylene glycol, poly(ε-caprolactone-co-D,L-lactide), and diurethane diisocyanates with uniform hard segment: Synthesis and properties. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1180612] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
15
|
Abstract
OBJECTIVE the menisci are easily injured and difficult to repair. The aim of this study was to analyze the current state of meniscal surgery aimed at preserving morphology and conserving the biomechanics of the knee to prevent joint degeneration. METHODOLOGY a search of the electronic medical literature database Medline was conducted, from http://www.ncbi.nlm.nih.gov/pubmed. The search was not limited by language. Candidate articles were identified by searching for those that included the keywords meniscus, surgery, suture, implant, allograft. The limits were included for clinical research and clinical trials. Basic research was not included. The studies selected were evaluated and classified in three different categories: basic science, reconstruction (suture and meniscectomy) and implants (scaffolds and allograft). RESULTS the consequences of meniscectomy performed at a young age can lead to a joint cartilage degeneration twenty years later. There are few surgical options for the repair of meniscal injuries in order both to preserve the meniscus and to ensure the long term survival of the knee joint, meniscectomy, repair, suturing the tear, or reconstruction, when a meniscal allograft or synthetic substitute is used to replace the meniscus, but the biomechanical properties of the native meniscus are not reproduced entirely by the scaffolds that exist today. CONCLUSION therapies that successfully repair or replace the meniscus are therefore likely to prevent or delay osteoarthritis progression.
Collapse
Affiliation(s)
| | - Francisco Forriol
- Department of Clínica Sciences, University San Pablo - CEU, Boadilla del Monte, Spain
| |
Collapse
|
16
|
Di Matteo B, Moran CJ, Tarabella V, Viganò A, Tomba P, Marcacci M, Verdonk R. A history of meniscal surgery: from ancient times to the twenty-first century. Knee Surg Sports Traumatol Arthrosc 2016; 24:1510-8. [PMID: 26231150 DOI: 10.1007/s00167-015-3717-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 07/13/2015] [Indexed: 11/27/2022]
Abstract
The science and surgery of the meniscus have evolved significantly over time. Surgeons and scientists always enjoy looking forward to novel therapies. However, as part of the ongoing effort at optimizing interventions and outcomes, it may also be useful to reflect on important milestones from the past. The aim of the present manuscript was to explore the history of meniscal surgery across the ages, from ancient times to the twenty-first century. Herein, some of the investigations of the pioneers in orthopaedics are described, to underline how their work has influenced the management of the injured meniscus in modern times. Level of evidence V.
Collapse
MESH Headings
- History, 15th Century
- History, 16th Century
- History, 17th Century
- History, 18th Century
- History, 19th Century
- History, 20th Century
- History, 21st Century
- History, Ancient
- History, Medieval
- Humans
- Menisci, Tibial/surgery
- Orthopedic Procedures/history
- Orthopedic Procedures/methods
- Orthopedics
- Tibial Meniscus Injuries/surgery
Collapse
Affiliation(s)
- B Di Matteo
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136, Bologna, Italy.
| | - C J Moran
- Trinity College and Sports Surgery Clinic, Dublin, Ireland
| | - V Tarabella
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136, Bologna, Italy
| | - A Viganò
- Donazione Putti, Biblioteche Scientifiche Istituto Ortopedico Rizzoli, Rizzoli Orthopaedic Institute, Via Pupilli n. 1, 40136, Bologna, Italy
| | - P Tomba
- Donazione Putti, Biblioteche Scientifiche Istituto Ortopedico Rizzoli, Rizzoli Orthopaedic Institute, Via Pupilli n. 1, 40136, Bologna, Italy
| | - M Marcacci
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1/10, 40136, Bologna, Italy
| | - R Verdonk
- Orthopaedics and Traumatology, Gent State University, Ghent, Belgium
| |
Collapse
|
17
|
Leong NL, Kabir N, Arshi A, Nazemi A, Jiang J, Wu BM, Petrigliano FA, McAllister DR. Use of ultra-high molecular weight polycaprolactone scaffolds for ACL reconstruction. J Orthop Res 2016; 34:828-35. [PMID: 26497133 DOI: 10.1002/jor.23082] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 10/22/2015] [Indexed: 02/04/2023]
Abstract
Previously, we reported on the implantation of electrospun polycaprolactone (PCL) grafts for use in ACL tissue engineering in a small animal model. In the present study, we hypothesized that grafts fabricated from ultra-high molecular weight polycaprolactone (UHMWPCL) would have similarly favorable biologic properties but superior mechanical properties as compared to grafts fabricated from PCL. Two forms of polycaprolactone were obtained (UHMWPCL, MW = 500 kD, and PCL, MW = 80 kD) and electrospun into scaffolds that were used to perform ACL reconstruction in 7-8 week old male Lewis rats. The following groups were examined: UHMWPCL, PCL, flexor digitorum longus (FDL) allograft, native ACL, as well as sham surgery in which the ACL was transsected. At 16 weeks post-operatively, biomechanical testing, histology, and immunohistochemistry (IHC) were performed. Analysis of cellularity indicated that there was no significant difference among the UHMWPCL, PCL, and FDL allograft groups. Quantification of birefringence from picrosirius red staining demonstrated significantly more aligned collagen fibers in the allograft than the PCL group, but no difference between the UHMWPCL and allograft groups. The peak load to failure of the UHMWPCL grafts was significantly higher than PCL, and not significantly different from FDL allograft. This in vivo study establishes the superiority of the higher molecular weight version of polycaprolactone over PCL as a scaffold material for ACL reconstruction. By 16 weeks after implantation, the UHMWPCL grafts were not significantly different from the FDL allografts in terms of cellularity, peak load to failure, stiffness, and collagen fiber alignment. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:828-835, 2016.
Collapse
Affiliation(s)
- Natalie L Leong
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| | - Nima Kabir
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| | - Armin Arshi
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| | - Azadeh Nazemi
- Department of Biomedical Engineering, University of California, Los Angeles, California
| | - Jie Jiang
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| | - Ben M Wu
- Department of Biomedical Engineering, University of California, Los Angeles, California
| | - Frank A Petrigliano
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| | - David R McAllister
- Department of Orthopaedic Surgery, University of California, Los Angeles, California
| |
Collapse
|
18
|
Patel JM, Merriam AR, Culp BM, Gatt CJ, Dunn MG. One-Year Outcomes of Total Meniscus Reconstruction Using a Novel Fiber-Reinforced Scaffold in an Ovine Model. Am J Sports Med 2016; 44:898-907. [PMID: 26842311 DOI: 10.1177/0363546515624913] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Meniscus injuries and resulting meniscectomies lead to joint deterioration, causing pain, discomfort, and instability. Tissue-engineered devices to replace the meniscus have not shown consistent success with regard to function, mechanical integrity, or protection of cartilage. PURPOSE To evaluate a novel resorbable polymer fiber-reinforced meniscus reconstruction scaffold in an ovine model for 52 weeks and assess its integrity, tensile and compressive mechanics, cell phenotypes, matrix organization and content, and protection of the articular cartilage surfaces. STUDY DESIGN Controlled laboratory study. METHODS Eight skeletally mature ewes were implanted with the fiber-reinforced scaffold after total meniscectomy, and 2 additional animals had untreated total meniscectomies. Animals were sacrificed at 52 weeks, and the explants and articular surfaces were analyzed macroscopically. Explants were characterized by ultimate tensile testing, confined compression creep testing, and biochemical, histological, and immunohistochemical analyses. Cartilage damage was characterized using the Mankin score on histologic slides from both the femur and tibia. RESULTS One sheep was removed from the study because of a torn extensor tendon; the remaining 7 explants remained fully intact and incorporated into the bone tunnels. All explants exhibited functional tensile loads, tensile stiffnesses, and compressive moduli. Fibrocartilagenous repair with both types 1 and 2 collagen were observed, with areas of matrix organization and biochemical content similar to native tissue. Narrowing in the body region was observed in 5 of 7 explants. Mankin scores showed less cartilage damage in the explant group (femoral condyle: 3.43 ± 0.79, tibial plateau: 3.50 ± 1.63) than in the meniscectomy group (femoral condyle: 8.50 ± 3.54, tibial plateau: 6.75 ± 2.47) and were comparable with Mankin scores at the previously reported 16- and 32-week time points. CONCLUSION A resorbable fiber-reinforced meniscus scaffold supports formation of functional neomeniscus tissue, with the potential to prevent joint degeneration that typically occurs after total meniscectomy. Further studies with improvements to the initial mechanics of the scaffold and testing for longer time periods are warranted. CLINICAL RELEVANCE Meniscectomy is an extremely common orthopaedic procedure, and few options currently exist for the treatment of significant loss of meniscus tissue. Successful development of a tissue-engineered meniscus scaffold could substantially reduce the incidence of postmeniscectomy joint degeneration and the subsequent procedures used for its treatment.
Collapse
Affiliation(s)
- Jay M Patel
- Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA Department of Biomedical Engineering, Rutgers-The State University of New Jersey, Piscataway, New Jersey, USA
| | - Aaron R Merriam
- Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA Department of Biomedical Engineering, Rutgers-The State University of New Jersey, Piscataway, New Jersey, USA
| | - Brian M Culp
- Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Charles J Gatt
- Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA Department of Biomedical Engineering, Rutgers-The State University of New Jersey, Piscataway, New Jersey, USA
| | - Michael G Dunn
- Department of Orthopaedic Surgery, Rutgers Biomedical and Health Sciences-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA Department of Biomedical Engineering, Rutgers-The State University of New Jersey, Piscataway, New Jersey, USA
| |
Collapse
|
19
|
Abstract
Objective: To induce growth of a neomeniscus into the pores of a prosthesis in order to protect the knee joint cartilage. Methods: 70 knees of 35 New Zealand rabbits were operated. The rabbits were five to seven months old, weighed 2 to 3.8 kilograms, and 22 were male and 13 were female. Each animal underwent medial meniscectomy in both knees during a single operation. A bioabsorbable polymeric meniscal prosthesis composed of 70% polydioxanone and 30% L-lactic acid polymer was implanted in one side. The animals were sacrificed after different postoperative time intervals. The femoral condyles and neomeniscus were subjected to histological analysis. Histograms were used to measure the degradation and absorption of the prosthesis, the growth of meniscal tissue in the prosthesis and the degree of degradation of the femoral condyle joint cartilage. Results: The data obtained showed that tissue growth histologically resembling a normal meniscus occurred, with gradual absorption of the prosthesis, and the percentages of chondrocytes on the control side and prosthesis side. Conclusion: Tissue growth into the prosthesis pores that histologically resembled the normal rabbit meniscus was observed. The joint cartilage of the femoral condyles on the prosthesis side presented greater numbers of chondrocytes in all its layers.
Collapse
|
20
|
Di Matteo B, Perdisa F, Gostynska N, Kon E, Filardo G, Marcacci M. Meniscal Scaffolds - Preclinical Evidence to Support their Use: A Systematic Review. Open Orthop J 2015; 9:143-56. [PMID: 26157531 PMCID: PMC4484348 DOI: 10.2174/1874325001509010143] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 11/22/2022] Open
Abstract
Arthroscopic meniscal treatment is the most common procedure performed in the orthopedic practice. Current management of meniscal pathology relies on different therapeutic options, ranging from selective meniscectomy, suturing, and to meniscal replacement by using either allografts or scaffolds. The progresses made in the field of regenerative medicine and biomaterials allowed to develop several meniscal substitutes, some of those currently used in the clinical practice. Before reaching the clinical application, these devices necessarily undergo accurate testing in the animal model: the aim of the present manuscript is to systematically review the scientific evidence derived by animal model results for the use of meniscal scaffolds, in order to understand the current state of research in this particular field and to identify the trends at preclinical level that may influence in the near future the clinical practice. Thirty-four papers were included in the present analysis. In 12 cases the meniscal scaffolds were used with cells to further stimulate tissue regeneration. With the exception of some negative reports regarding dacron-based scaffolds, the majority of the trials highlighted that biomaterials and bio-engineered scaffolds are safe and could play a beneficial role in stimulating meniscal healing and in chondral protection. With regard to the benefits of cell augmentation, the evidence is limited to a small number of studies and no conclusive evidence is available. However, preclinical evidence seems to suggest that cells could enhance tissue regeneration with respect to the use of biomaterials alone, and further research should confirm the translational potential of cell-based approach.
Collapse
Affiliation(s)
- Berardo Di Matteo
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1 40136, Bologna, Italy
| | - Francesco Perdisa
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1 40136, Bologna, Italy
| | - Natalia Gostynska
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1 40136, Bologna, Italy
| | - Elizaveta Kon
- II Orthopaedic Clinic and Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1, 40136, Bologna, Italy
| | - Giuseppe Filardo
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1 40136, Bologna, Italy
| | - Maurilio Marcacci
- II Orthopaedic Clinic and Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano n. 1 40136, Bologna, Italy
| |
Collapse
|
21
|
Leong NL, Kabir N, Arshi A, Nazemi A, Wu B, Petrigliano FA, McAllister DR. Evaluation of polycaprolactone scaffold with basic fibroblast growth factor and fibroblasts in an athymic rat model for anterior cruciate ligament reconstruction. Tissue Eng Part A 2015; 21:1859-68. [PMID: 25744933 DOI: 10.1089/ten.tea.2014.0366] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Anterior cruciate ligament (ACL) rupture is a common ligamentous injury often necessitating surgery. Current surgical treatment options include ligament reconstruction with autograft or allograft, which have their inherent limitations. Thus, there is interest in a tissue-engineered substitute for use in ACL regeneration. However, there have been relatively few in vivo studies to date. In this study, an athymic rat model of ACL reconstruction was used to evaluate electrospun polycaprolactone (PCL) grafts, with and without the addition of basic fibroblast growth factor (bFGF) and human foreskin fibroblasts. We examined the regenerative potential of tissue-engineered ACL grafts using histology, immunohistochemistry, and mechanical testing up to 16 weeks postoperatively. Histology showed infiltration of the grafts with cells, and immunohistochemistry demonstrated aligned collagen deposition with minimal inflammatory reaction. Mechanical testing of the grafts demonstrated significantly higher mechanical properties than immediately postimplantation. Acellular grafts loaded with bFGF achieved 58.8% of the stiffness and 40.7% of the peak load of healthy native ACL. Grafts without bFGF achieved 31.3% of the stiffness and 28.2% of the peak load of healthy native ACL. In this in vivo rodent model study for ACL reconstruction, the histological and mechanical evaluation demonstrated excellent healing and regenerative potential of our electrospun PCL ligament graft.
Collapse
Affiliation(s)
- Natalie Luanne Leong
- 1Department of Orthopedic Surgery, University of California, Los Angeles, Los Angeles, California
| | - Nima Kabir
- 1Department of Orthopedic Surgery, University of California, Los Angeles, Los Angeles, California
| | - Armin Arshi
- 1Department of Orthopedic Surgery, University of California, Los Angeles, Los Angeles, California
| | - Azadeh Nazemi
- 2Department of Bioengineering, University of California, Los Angeles, Los Angeles, California
| | - Ben Wu
- 2Department of Bioengineering, University of California, Los Angeles, Los Angeles, California
| | - Frank A Petrigliano
- 1Department of Orthopedic Surgery, University of California, Los Angeles, Los Angeles, California
| | - David R McAllister
- 1Department of Orthopedic Surgery, University of California, Los Angeles, Los Angeles, California
| |
Collapse
|
22
|
Martins AC, Moreira A, Machado AV, Vaz F, Fonseca C, Nóbrega JM. Development of polymer wicks for the fabrication of bio-medical sensors. Materials Science and Engineering: C 2015; 49:356-363. [DOI: 10.1016/j.msec.2015.01.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/29/2014] [Accepted: 01/08/2015] [Indexed: 10/24/2022]
|
23
|
Leong NL, Kabir N, Arshi A, Nazemi A, Wu BM, McAllister DR, Petrigliano FA. Athymic rat model for evaluation of engineered anterior cruciate ligament grafts. J Vis Exp 2015. [PMID: 25867958 DOI: 10.3791/52797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Anterior cruciate ligament (ACL) rupture is a common ligamentous injury that often requires surgery because the ACL does not heal well without intervention. Current treatment strategies include ligament reconstruction with either autograft or allograft, which each have their associated limitations. Thus, there is interest in designing a tissue-engineered graft for use in ACL reconstruction. We describe the fabrication of an electrospun polymer graft for use in ACL tissue engineering. This polycaprolactone graft is biocompatible, biodegradable, porous, and is comprised of aligned fibers. Because an animal model is necessary to evaluate such a graft, this paper describes an intra-articular athymic rat model of ACL reconstruction that can be used to evaluate engineered grafts, including those seeded with xenogeneic cells. Representative histology and biomechanical testing results at 16 weeks postoperatively are presented, with grafts tested immediately post-implantation and contralateral native ACLs serving as controls. The present study provides a reproducible animal model with which to evaluate tissue engineered ACL grafts, and demonstrates the potential of a regenerative medicine approach to treatment of ACL rupture.
Collapse
Affiliation(s)
- Natalie L Leong
- Department of Orthopaedic Surgery, University of California Los Angeles;
| | - Nima Kabir
- Department of Orthopaedic Surgery, University of California Los Angeles
| | - Armin Arshi
- Department of Orthopaedic Surgery, University of California Los Angeles
| | - Azadeh Nazemi
- Department of Bioengineering, University of California Los Angeles
| | - Ben M Wu
- Department of Bioengineering, University of California Los Angeles
| | | | | |
Collapse
|
24
|
Zaffagnini S, Fink C, Grassi A, Marcheggiani Muccioli G, Marcacci M. Meniskusimplantate. Arthroskopie 2015. [DOI: 10.1007/s00142-014-0837-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
25
|
Petrigliano FA, Arom GA, Nazemi AN, Yeranosian MG, Wu BM, McAllister DR. In vivo evaluation of electrospun polycaprolactone graft for anterior cruciate ligament engineering. Tissue Eng Part A 2015; 21:1228-36. [PMID: 25412879 DOI: 10.1089/ten.tea.2013.0482] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The anterior cruciate ligament (ACL) is critical for the structural stability of the knee and its injury often requires surgical intervention. Because current reconstruction methods using autograft or allograft tissue suffer from donor-site morbidity and limited supply, there has been emerging interest in the use of bioengineered materials as a platform for ligament reconstruction. Here, we report the use of electrospun polycaprolactone (PCL) scaffolds as a candidate platform for ACL reconstruction in an in vivo rodent model. Electrospun PCL was fabricated and laser cut to facilitate induction of cells and collagen deposition and used to reconstruct the rat ACL. Histological analysis at 2, 6, and 12 weeks postimplantation revealed biological integration, minimal immune response, and the gradual infiltration of collagen in both the bone tunnel and intra-articular regions of the scaffold. Biomechanical testing demonstrated that the PCL graft failure load and stiffness at 12 weeks postimplantation (13.27±4.20N, 15.98±5.03 N/mm) increased compared to time zero testing (3.95±0.33N, 1.95±0.35 N/mm). Taken together, these results suggest that electrospun PCL serves as a biocompatible graft for ACL reconstruction with the capacity to facilitate collagen deposition.
Collapse
Affiliation(s)
- Frank A Petrigliano
- 1 Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles , Los Angeles, California
| | | | | | | | | | | |
Collapse
|
26
|
Rongen JJ, van Tienen TG, van Bochove B, Grijpma DW, Buma P. Biomaterials in search of a meniscus substitute. Biomaterials 2014; 35:3527-40. [DOI: 10.1016/j.biomaterials.2014.01.017] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 01/08/2014] [Indexed: 11/24/2022]
|
27
|
Dempsey DK, Robinson JL, Iyer AV, Parakka JP, Bezwada RS, Cosgriff-Hernandez EM. Characterization of a resorbable poly(ester urethane) with biodegradable hard segments. Journal of Biomaterials Science, Polymer Edition 2014; 25:535-54. [DOI: 10.1080/09205063.2014.880247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
28
|
Warnock JJ, Baker L, Ballard GA, Ott J. In vitro synthesis of tensioned synoviocyte bioscaffolds for meniscal fibrocartilage tissue engineering. BMC Vet Res 2013; 9:242. [PMID: 24299420 PMCID: PMC4220847 DOI: 10.1186/1746-6148-9-242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 11/25/2013] [Indexed: 12/14/2022] Open
Abstract
Background Meniscal injury is a common cause of lameness in the dog. Tissue engineered bioscaffolds may be a treatment option for meniscal incompetency, and ideally would possess meniscus- like extracellular matrix (ECM) and withstand meniscal tensile hoop strains. Synovium may be a useful cell source for meniscal tissue engineering because of its natural role in meniscal deficiency and its in vitro chondrogenic potential. The objective of this study is to compare meniscal -like extracellular matrix content of hyperconfluent synoviocyte cell sheets (“HCS”) and hyperconfluent synoviocyte sheets which have been tensioned over wire hoops (tensioned synoviocyte bioscaffolds, “TSB”) and cultured for 1 month. Results Long term culture with tension resulted in higher GAG concentration, higher chondrogenic index, higher collagen concentration, and type II collagen immunoreactivity in TSB versus HCS. Both HCS and TSB were immunoreactive for type I collagen, however, HCS had mild, patchy intracellular immunoreactivity while TSB had diffuse moderate immunoreactivity over the entire bisocaffold. The tissue architecture was markedly different between TSB and HCS, with TSB containing collagen organized in bands and sheets. Both HCS and TSB expressed alpha smooth muscle actin and displayed active contractile behavior. Double stranded DNA content was not different between TSB and HCS, while cell viability decreased in TSB. Conclusions Long term culture of synoviocytes with tension improved meniscal- like extra cellular matrix components, specifically, the total collagen content, including type I and II collagen, and increased GAG content relative to HCS. Future research is warranted to investigate the potential of TSB for meniscal tissue engineering.
Collapse
Affiliation(s)
- Jennifer J Warnock
- Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA.
| | | | | | | |
Collapse
|
29
|
Sah MK, Pramanik K. Soluble-eggshell-membrane-protein-modified porous silk fibroin scaffolds with enhanced cell adhesion and proliferation properties. J Appl Polym Sci 2013. [DOI: 10.1002/app.40138] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mahesh Kumar Sah
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela - 769 008 India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela - 769 008 India
| |
Collapse
|
30
|
|
31
|
Esposito AR, Moda M, Cattani SMDM, de Santana GM, Barbieri JA, Munhoz MM, Cardoso TP, Barbo MLP, Russo T, D'Amora U, Gloria A, Ambrosio L, Duek EADR. PLDLA/PCL-T Scaffold for Meniscus Tissue Engineering. Biores Open Access 2013; 2:138-47. [PMID: 23593566 PMCID: PMC3620496 DOI: 10.1089/biores.2012.0293] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The inability of the avascular region of the meniscus to regenerate has led to the use of tissue engineering to treat meniscal injuries. The aim of this study was to evaluate the ability of fibrochondrocytes preseeded on PLDLA/PCL-T [poly(L-co-D,L-lactic acid)/poly(caprolactone-triol)] scaffolds to stimulate regeneration of the whole meniscus. Porous PLDLA/PCL-T (90/10) scaffolds were obtained by solvent casting and particulate leaching. Compressive modulus of 9.5±1.0 MPa and maximum stress of 4.7±0.9 MPa were evaluated. Fibrochondrocytes from rabbit menisci were isolated, seeded directly on the scaffolds, and cultured for 21 days. New Zealand rabbits underwent total meniscectomy, after which implants consisting of cell-free scaffolds or cell-seeded scaffolds were introduced into the medial knee meniscus; the negative control group consisted of rabbits that received no implant. Macroscopic and histological evaluations of the neomeniscus were performed 12 and 24 weeks after implantation. The polymer scaffold implants adapted well to surrounding tissues, without apparent rejection, infection, or chronic inflammatory response. Fibrocartilaginous tissue with mature collagen fibers was observed predominantly in implants with seeded scaffolds compared to cell-free implants after 24 weeks. Similar results were not observed in the control group. Articular cartilage was preserved in the polymeric implants and showed higher chondrocyte cell number than the control group. These findings show that the PLDLA/PCL-T 90/10 scaffold has potential for orthopedic applications since this material allowed the formation of fibrocartilaginous tissue, a structure of crucial importance for repairing injuries to joints, including replacement of the meniscus and the protection of articular cartilage from degeneration.
Collapse
Affiliation(s)
- Andrea Rodrigues Esposito
- Department of Materials Engineering, Faculty of Mechanical Engineering, University of Campinas (UNICAMP) , Campinas, Brazil . ; Laboratory of Biomaterials, Faculty of Medicine and Health Sciences, Pontifical Catholic University of Sao Paulo (PUC-SP) , Sorocaba, Brazil
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
|
33
|
Gandhi S, Sethuraman S, Krishnan UM. Heterogeneous mesoporous SBA-15 silica as catalyst towards the synthesis of various biodegradable aliphatic polyesters. Macromol Res 2013; 21:833-42. [DOI: 10.1007/s13233-013-1101-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
34
|
Verdonk R, Volpi P, Verdonk P, Van der Bracht H, Van Laer M, Almqvist KF, Vander Eecken S, Prospero E, Quaglia A. Indications and limits of meniscal allografts. Injury 2013; 44 Suppl 1:S21-7. [PMID: 23351865 DOI: 10.1016/s0020-1383(13)70006-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Meniscal allograft transplantation has emerged as a useful treatment for carefully selected patients. The aim of this review of meniscal allograft transplantation is to put this procedure into a clinical perspective. Since there still is a lack of consensus on how the success of meniscal transplantation should be evaluated it is difficult to compare study outcomes. Nevertheless, almost all studies report an increase in patient satisfaction and improvement in pain and function. Clinical and functional outcome is improved in the majority of patients. Progression of cartilage degeneration according to MRI and radiological criteria was halted in a number of patients, indicating a chondroprotective effect. Joint space narrowing is only significantly progressive at long-term follow-up. On magnetic resonance imaging, shrinkage is seen after some years, but more in lyophilized allografts. Second-look arthroscopy usually shows good healing to the capsule. Overall, the clinical results of this type of surgery are encouraging and long-lasting in a well selected patient population who suffered a total meniscectomy. Meniscal allografting appears to becoming the golden standard therapy for these type of patients.
Collapse
Affiliation(s)
- R Verdonk
- Department of Orthopaedic Surgery and Traumatology, Ghent University Hospital, Gent, Belgium.
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Petri M, Ufer K, Toma I, Becher C, Liodakis E, Brand S, Haas P, Liu C, Richter B, Haasper C, von Lewinski G, Jagodzinski M. Effects of perfusion and cyclic compression on in vitro tissue engineered meniscus implants. Knee Surg Sports Traumatol Arthrosc 2012; 20:223-31. [PMID: 21750950 DOI: 10.1007/s00167-011-1600-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 06/27/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE The purpose of this study was to investigate the influence of continuous perfusion and mechanical stimulation on bone marrow stromal cells seeded on a collagen meniscus implant. METHODS Bone marrow aspirates from 6 donors were amplified in vitro. 10(6) human BMSC were distributed on a collagen meniscus implant. Scaffolds were cultured under static conditions (control) or placed into a bioreactor system where continuous perfusion (10 ml/min) or perfusion and mechanical stimulation (8 h of 10% cyclic compression at 0.5 Hz) were administered daily. After 24 h, 7 and 14 days, cell proliferation, synthesis of procollagen I and III peptide (PIP, PIIIP), histology, and the equilibrium modulus of the constructs were analyzed. RESULTS Proliferation demonstrated a significant increase over time in all groups (p < 0.001). PIP synthesis was found to increase from 0.1 ± 0.0 U/ml/g protein after 24 h to 2.0 ± 0.5 (perfusion), 3.8 ± 0.3 (mechanical stimulation), and 1.8 ± 0.2 U/ml/g protein (static control, lower than perfusion and mechanical stimulation, p < 0.05). These differences were also evident after 2 weeks (2.7 ± 0.3, 4.0 ± 0.6, and 1.8 ± 0.2 U/ml/g protein, p < 0.01); PIIIP synthesis was found to increase from 0.1 ± 0.0 U/ml/g protein after 24 h to 2.9 ± 0.7 (perfusion), 3.1 ± 0.9 (mechanical stimulation), and 1.6 ± 0.3 U/ml/g protein (controls) after 1 week and remained significantly elevated under the influence of perfusion and mechanical stimulation (p < 0.01) after 2 weeks. Mechanical stimulation increased the equilibrium modulus more than static culture and perfusion after 2 weeks (24.7 ± 7.6; 12.3 ± 3.7; 15.4 ± 2.6 kPa; p < 0.02). CONCLUSION Biomechanical stimulation and perfusion have impact on collagen scaffolds seeded with BMSCs. Cell proliferation can be enhanced using continuous perfusion and differentiation is fostered by mechanical stimulation.
Collapse
Affiliation(s)
- M Petri
- Trauma Department, Hanover Medical School (MHH), OE 6230, Carl-Neuberg-Straße 1, 30625 Hannover, Germany.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
|
37
|
Abstract
The state-of-the-art of biocomposites and hybrid biomaterials based on calcium orthophosphates that are suitable for biomedical applications is presented in this review. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through successful combinations of the desired properties of matrix materials with those of fillers (in such systems, calcium orthophosphates might play either role), innovative bone graft biomaterials can be designed. Various types of biocomposites and hybrid biomaterials based on calcium orthophosphates, either those already in use or being investigated for biomedical applications, are extensively discussed. Many different formulations, in terms of the material constituents, fabrication technologies, structural and bioactive properties as well as both in vitro and in vivo characteristics, have already been proposed. Among the others, the nanostructurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using biocomposites and hybrid biomaterials based on calcium orthophosphates in the selected applications are highlighted. As the way from the laboratory to the hospital is a long one, and the prospective biomedical candidates have to meet many different necessities, this review also examines the critical issues and scientific challenges that require further research and development.
Collapse
|
38
|
Abstract
The concept of using gene transfer strategies for cartilage repair originates from the idea of transferring genes encoding therapeutic factors into the repair tissue, resulting in a temporarily and spatially defined delivery of therapeutic molecules to sites of cartilage damage. This review focuses on the potential benefits of using gene therapy approaches for the repair of articular cartilage and meniscal fibrocartilage, including articular cartilage defects resulting from acute trauma, osteochondritis dissecans, osteonecrosis, and osteoarthritis. Possible applications for meniscal repair comprise meniscal lesions, meniscal sutures, and meniscal transplantation. Recent studies in both small and large animal models have demonstrated the applicability of gene-based approaches for cartilage repair. Chondrogenic pathways were stimulated in the repair tissue and in osteoarthritic cartilage using genes for polypeptide growth factors and transcription factors. Although encouraging data have been generated, a successful translation of gene therapy for cartilage repair will require an ongoing combined effort of orthopedic surgeons and of basic scientists.
Collapse
Affiliation(s)
- Henning Madry
- Saarland University, Homburg, Germany,Henning Madry, Saarland University, Kirrbergerstrasse 1, Homburg, 66424 Germany
| | | | | |
Collapse
|
39
|
Warnock JJ, Fox DB, Stoker AM, Cook JL. Evaluation of in vitro growth factor treatments on fibrochondrogenesis by synovial membrane cells from osteoarthritic and nonosteoarthritic joints of dogs. Am J Vet Res 2011; 72:500-11. [PMID: 21453151 DOI: 10.2460/ajvr.72.4.500] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the in vitro effects of selected growth factors on fibrochondrogenesis by synovial membrane cells from nonosteoarthritic (normal) and osteoarthritic joints of dogs. ANIMALS 5 dogs with secondary osteoarthritis of shoulder or stifle joints and 6 dogs with normal joints. PROCEDURES Synovial membrane cells were harvested from normal and osteoarthritic joints and cultured in monolayer with or without (control) basic fibroblast growth factor, transforming growth factor-β1, and insulin-like growth factor-1. In the cultured cells, fibrochondrogenesis was measured by use of a real-time reverse transcriptase PCR assay to determine relative expressions of collagen I, collagen II, and aggrecan genes and of 3 genes involved in embryonic chondrogenesis: Sry-type homeobox protein-9 (SOX-9), frizzled-motif associated with bone development (Frzb), and regulator of G-protein signaling-10 (RGS-10). Tissue collagen content was measured via a hydroxyproline assay, and sulfated glycosaminoglycan content was measured via a 1,9-dimethylmethylene blue assay. Cellularity was determined via a double-stranded DNA assay. Immunohistochemical analysis for collagens I and II was also performed. RESULTS In vitro collagen synthesis was enhanced by growth factor stimulation. Although osteoarthritic-joint synoviocytes could undergo a fibrocartilage-like phenotypic shift, their production of collagenous extracellular matrix was less than that of normal-joint synoviocytes. Gene expressions of SOX-9 and RGS-10 were highest in the osteoarthritic-joint cells; Frzb expression was highest in growth factor treated cells. CONCLUSIONS AND CLINICAL RELEVANCE Autogenous synovium may be a viable cell source for meniscal tissue engineering. Gene expressions of SOX-9 and RGS-10 may be potential future targets for in vitro enhancement of chondrogenesis.
Collapse
Affiliation(s)
- Jennifer J Warnock
- Comparative Orthopaedic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA.
| | | | | | | |
Collapse
|
40
|
Kohn L, Lorenz S, Hinterwimmer S. Meniskusimplantate. Arthroskopie 2011; 24:42-47. [DOI: 10.1007/s00142-010-0596-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
41
|
Jovanovic D, Engels GE, Plantinga JA, Bruinsma M, van Oeveren W, Schouten AJ, van Luyn MJA, Harmsen MC. Novel polyurethanes with interconnected porous structure induce in vivo tissue remodeling and accompanied vascularization. J Biomed Mater Res A 2010; 95:198-208. [PMID: 20574980 DOI: 10.1002/jbm.a.32817] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tissue engineering and regenerative medicine have furnished a vast range of modalities to treat either damaged tissue or loss of soft tissue or its function. In most approaches, a temporary porous scaffold is required to support tissue regeneration. The scaffold should be designed such that the turnover synchronizes with tissue remodeling and regeneration at the implant site. Segmented polyester urethanes (PUs) used in this study were based on epsilon-caprolactone (CL) and co-monomers D,L-lactide (D,L-L) and gamma-butyrolactone (BL), and 1,4-butanediisocyanate (BDI). In vitro, the PUs were nontoxic and haemocompatible. To test in vivo biocompatibility, the PUs were further processed into porous structures and subcutaneously implanted in rats for a period up to 21 days. Tissue remodeling and scaffold turnover was associated with a mild tissue response. The tissue response was characterized by extensive vascularization through the interconnected pores, with low numbers of macrophages on the edges and stroma formation inside the pores of the implants. The tissue ingrowth appeared to be related to the extent of microphase separation of the PUs and foam morphology. By day 21, all of the PU implants were highly vascularized, confirming the pores were interconnected. Degradation of P(CL/D,L-L)-PU was observed at this time, whereas the other two PU types remained intact. The robust method reported here of manufacturing and processing, good mechanical properties, and in vivo tissue response of the porous P(CL/D,L-L)-PU and PBCL-PU makes them excellent candidates as biomaterials with an application for soft tissue remodeling, for example, for cardiovascular regeneration.
Collapse
Affiliation(s)
- D Jovanovic
- Department of Polymer Science, Zernike Institute for Advanced Materials, Faculty of Mathematics and Natural Sciences, University of Groningen, Groningen, The Netherlands
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Maher SA, Rodeo SA, Doty SB, Brophy R, Potter H, Foo LF, Rosenblatt L, Deng XH, Turner AS, Wright TM, Warren RF. Evaluation of a porous polyurethane scaffold in a partial meniscal defect ovine model. Arthroscopy 2010; 26:1510-9. [PMID: 20855181 DOI: 10.1016/j.arthro.2010.02.033] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 02/23/2010] [Accepted: 02/23/2010] [Indexed: 02/02/2023]
Abstract
PURPOSE The objective of this study was to assess the performance of a degradable porous polyurethane scaffold in a partial meniscectomy ovine model. METHODS We subjected 42 skeletally mature ewes to unilateral partial excision of the lateral meniscus. In 19 animals the defect was left unfilled; in 23 animals a scaffold was inserted. Knees were examined by magnetic resonance imaging, gross inspection, and histologic inspection of the cartilage of the tibial plateau. RESULTS In contrast to what has been previously reported in a complete meniscal replacement model, cartilage damage did not occur under the site of scaffold implantation; this was likely influenced by the rapid infiltration of cells and the dense tissue that formed within the scaffold. Cartilage damage in both groups was located close to the midline of the joint. No significant difference in the condition of the articular cartilage of the tibial plateau was seen between groups up to 12 months postoperatively. This result was influenced by the fact that the partly meniscectomized knees also showed unexpected tissue regeneration within the defect site, which raises concern about the suitability of using a partial meniscectomy as a control in the ovine model. CONCLUSIONS Our study has shown that implantation of a polyurethane scaffold in a partial meniscectomy ovine model promotes tissue ingrowth without damaging the cartilage with which it articulates. CLINICAL RELEVANCE Meniscal deficiency is a common occurrence, the effective clinical management of which is limited by the absence of an off-the-shelf implantable construct.
Collapse
|
43
|
Gleghorn JP, Doty SB, Warren RF, Wright TM, Maher SA, Bonassar LJ. Analysis of frictional behavior and changes in morphology resulting from cartilage articulation with porous polyurethane foams. J Orthop Res 2010; 28:1292-9. [PMID: 20309861 DOI: 10.1002/jor.21136] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Porous polyurethane foams (PUR) have been extensively evaluated as meniscal replacement materials and show great promise enabling infiltration of cells and fibrocartilage formation in vivo. Similar to most materials, PUR demonstrates progressive degeneration of opposing cartilage; however, the damage mechanism is impossible to determine because no information exists on the frictional properties of PUR-cartilage interfaces. The goals of this study were to characterize the frictional behavior of a cartilage-PUR interface across a range of articulating conditions and assess the resulting morphological changes to the cartilage surface following articulation. Articular cartilage was oscillated against PUR or stainless steel using phosphate-buffered saline (PBS) and synovial fluid as lubricants. Following friction testing, cartilage and PUR samples were analyzed with environmental scanning electron microscopy and histological staining to determine changes in tissue morphology. Stribeck-surface analysis demonstrated distinct lubrication modes; however, boundary mode lubrication was dominant in cartilage-PUR interfaces and the low-friction pressure-borne lubrication mechanism present in native joints was absent. Microscopy noted obvious wear, with disruption of the collagen architecture and concomitant proteoglycan loss in cartilage articulated against PUR. These data collectively point to the importance of frictional properties as design parameters for implants and materials for soft tissue replacement.
Collapse
Affiliation(s)
- Jason P Gleghorn
- Department of Biomedical Engineering, Cornell University, 149 Weill Hall, Ithaca, New York 14853, USA
| | | | | | | | | | | |
Collapse
|
44
|
Woźniak P, Bil M, Ryszkowska J, Wychowański P, Wróbel E, Ratajska A, Hoser G, Przybylski J, Kurzydłowski KJ, Lewandowska-Szumieł M. Candidate bone-tissue-engineered product based on human-bone-derived cells and polyurethane scaffold. Acta Biomater 2010; 6:2484-93. [PMID: 19837193 DOI: 10.1016/j.actbio.2009.10.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2009] [Revised: 10/10/2009] [Accepted: 10/13/2009] [Indexed: 01/30/2023]
Abstract
Biodegradable polyurethanes (PURs) have recently been investigated as candidate materials for bone regenerative medicine. There are promising reports documenting the biocompatibility of selected PURs in vivo and the tolerance of certain cells toward PURs in vitro - potentially to be used as scaffolds for tissue-engineered products (TEPs). The aim of the present study was to take a step forward and create a TEP using human osteogenic cells and a polyurethane scaffold, and to evaluate the quality of the obtained TEP in vivo. Human-bone-derived cells (HBDCs) were seeded and cultured on polyurethane scaffolds in a bioreactor for 14 days. The TEP examination in vitro was based on the evaluation of cell number, cell phenotype and cell distribution within the scaffold. TEPs and control samples (scaffolds without cells) were implanted subcutaneously into SCID mice for 4 and 13 weeks. Explants harvested from the animals were examined using histological and immunohistochemical methods. They were also tested in mechanical trials. It was found that dynamic conditions for cell seeding and culture enable homogeneous distribution, maintaining the proliferative potential and osteogenic phenotype of the HBDCs cultured on polyurethane scaffolds. It was also found that HBDCs implanted as a component of TEP survived and kept their ability to produce the specific human bone extracellular matrix, which resulted in higher mechanical properties of the harvested explants when preseeded with HBDCs. The whole system, including the investigated PUR scaffold and the method of human cell seeding and culture, is recommended as a candidate bone TEP.
Collapse
Affiliation(s)
- Piotr Woźniak
- Department of Biophysics and Human Physiology, Medical University of Warsaw, Warsaw, Poland
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Vilela LM, Del Carlo RJ, Silva JCPD, Matta SLP, Rodrigues MCD, Reis AMS. Avaliação das fibras colágenas de meniscos frescos e preservados em glicerina: estudo experimental em coelhos (Oryctolagus cuniculus). Pesq Vet Bras 2010. [DOI: 10.1590/s0100-736x2010000400007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
No presente estudo foi avaliado o efeito da glicerina 98% sobre as fibras colágenas, arquitetura tecidual e o tamanho de meniscos mediais de coelhos da raça Nova Zelândia. Os meniscos foram separados em três grupos: (1) Grupo MF com meniscos frescos (grupo controle), (2) Grupo MG com meniscos preservados em glicerina 98% por 30 dias, e (3) Grupo MR com meniscos preservados em glicerina 98% por 30 dias e reidratados em NaCl 0,9%, por 12 horas. Os cortes histológicos foram corados com sirius red para identificação dos tipos de colágenos e observados em microscópio de luz polarizada, avaliando-se a concentração total de colágeno Tipo I e III e a disposição das fibras. Os meniscos frescos apresentaram significativamente maior concentração de fibras colágenas Tipo I e menor concentração de fibras colágenas Tipo III que os meniscos preservados (MG e MR); isto ocorreu devido à perda de água e conseqüente redução do tamanho dos meniscos e retração das fibras colágenas dos meniscos dos Grupos MG e MR; isto pode ter feito com que as fibras Tipo I, mais espessas e em maior quantidade, se tornassem mais evidentes do que as fibras colágenas Tipo III, que são mais delgadas e frágeis (fibrilas). Nos três grupos estudados, as fibras colágenas apresentaram-se de forma circunferencial, interpostas por fibras orientadas radialmente. Entretanto, nos grupos tratados (MG e MR) foi observado, em pequenas áreas, leve desorganização das fibras colágenas, o que correspondeu a 42,8% e 14,3% dos meniscos, respectivamente. O grupo de meniscos em glicerina apresentou redução significativa (p<0,05) no tamanho em relação ao Grupo MF. No Grupo MR, 85,7% dos meniscos retornaram ao seu tamanho inicial após a reidratação. A glicerina 98% é eficaz na preservação de meniscos, mantendo o tamanho, a arquitetura estrutural, a integridade e percentagem do colágeno dos meniscos preservados semelhante à de meniscos frescos, desde que sejam reidratados em NaCl 0,9% após preservação.
Collapse
|
46
|
Tan Y, Zhang Y, Pei M. Meniscus Reconstruction Through Coculturing Meniscus Cells with Synovium-Derived Stem Cells on Small Intestine Submucosa—A Pilot Study to Engineer Meniscus Tissue Constructs. Tissue Eng Part A 2010; 16:67-79. [PMID: 19619075 DOI: 10.1089/ten.tea.2008.0680] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- Yunbing Tan
- Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, West Virginia
- Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia
| | - Yuanyuan Zhang
- Institute for Regenerative Medicine, Wake Forest University Health Science, Winston-Salem, North Carolina
| | - Ming Pei
- Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, West Virginia
- Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia
| |
Collapse
|
47
|
|
48
|
Zuidema J, van Minnen B, Span MM, Hissink CE, van Kooten TG, Bos RRM. In vitrodegradation of a biodegradable polyurethane foam, based on 1,4-butanediisocyanate: A three-year study at physiological and elevated temperature. J Biomed Mater Res A 2009; 90:920-30. [DOI: 10.1002/jbm.a.32154] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
49
|
Caracciolo PC, Buffa F, Abraham GA. Effect of the hard segment chemistry and structure on the thermal and mechanical properties of novel biomedical segmented poly(esterurethanes). J Mater Sci Mater Med 2009; 20:145-155. [PMID: 18704646 DOI: 10.1007/s10856-008-3561-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Accepted: 07/25/2008] [Indexed: 05/26/2023]
Abstract
Two series of biomedical segmented polyurethanes (SPU) based on poly(epsilon-caprolactone) diol (PCL diol), 1,6-hexamethylene diisocyanate (HDI) or L: -lysine methyl ester diisocyanate (LDI) and three novel chain extenders, were synthesized and characterized. Chain extenders containing urea groups or an aromatic amino-acid derivative were incorporated in the SPU formulation to strengthen the hard segment interactions through either bidentate hydrogen bonding or pi-stacking interactions, respectively. By varying the composition of the hard segment (diisocyanate and chain extender), its structure was varied to investigate the structure-property relationships. The different chemical composition and symmetry of hard segment modulated the phase separation of soft and hard domains, as demonstrated by the thermal behavior. Hard segment association was more enhanced by using a combination of symmetric diisocyanate and urea-diol chain extenders. The hard segment cohesion had an important effect on the observed mechanical behavior. Polyurethanes synthesized using HDI (Series H) were stronger than those obtained using LDI (Series L). The latter SPU exhibited no tendency to undergo cold-drawing and the lowest ultimate properties. Incorporation of the aromatic chain extender produced opposite effects, resulting in polyurethanes with the highest elongation and tearing energy (Series H) and the lowest strain at break (Series L). Since the synthesized biodegradable SPU possess a range of thermal and mechanical properties, these materials may hold potential for use in soft tissue engineering scaffold applications.
Collapse
Affiliation(s)
- P C Caracciolo
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales, Av. Juan B. Justo 4302, B7608FDQ, Mar del Plata, Argentina
| | | | | |
Collapse
|
50
|
Heijkants RGJC, van Calck RV, van Tienen TG, de Groot JH, Pennings AJ, Buma P, Veth RPH, Schouten AJ. Polyurethane scaffold formation via a combination of salt leaching and thermally induced phase separation. J Biomed Mater Res A 2008; 87:921-32. [DOI: 10.1002/jbm.a.31829] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|