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Tang J, Zhao J. Anatomic Double-Bundle Transtibial Anterior Cruciate Ligament Reconstruction With Ligament Advanced Reinforcement System. Arthrosc Tech 2024; 13:103014. [PMID: 39233793 PMCID: PMC11369952 DOI: 10.1016/j.eats.2024.103014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 03/01/2024] [Indexed: 09/06/2024] Open
Abstract
It has been reported that anterior cruciate ligament reconstruction (ACLR) with the Ligament Advanced Reinforcement System (LARS) could obtain similar clinical outcomes to ACLR with autograft. However, in most related reports, single-bundle ACLR was performed. Given that double-bundle ACLR is more favorable than single-bundle ACLR biomechanically, it is reasonable to try double-bundle ACLR with the LARS clinically. Thus, we introduce an anatomic double-bundle transtibial ACLR technique with the LARS, in which the most critical step is to create a shallow tibial tunnel for the anteromedial bundle to further create the corresponding femoral tunnel in a transtibial manner, as well as to fix both bundles in full extension of the knee.
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Affiliation(s)
- Jin Tang
- Operating Theater, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Gao H, Chen N, Sun L, Sheng D, Zhong Y, Huang M, Yu C, Yang X, Hao Y, Chen S, Shao Z, Chen J. Time-programmed release of curcumin and Zn 2+ from multi-layered RSF coating modified PET graft for improvement of graft-host integration. Int J Biol Macromol 2024; 272:132830. [PMID: 38825264 DOI: 10.1016/j.ijbiomac.2024.132830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 05/09/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Artificial graft serves as the primary grafts used in the clinical management of sports-related injuries. Until now, optimizing its graft-host integration remains a great challenge due to the excessive inflammatory response during the inflammatory phase, coupled with an absence of tissue-inductive capacity during the regeneration phase. Here, a multi-layered regenerated silk fibroin (RSF) coating loaded with curcumin (Cur) and Zn2+ on the surface of the PET grafts (Cur@Zn2+@PET) was designed and fabricated for providing time-matched regulation specifically tailored to address issues arising at both inflammatory and regeneration phases, respectively. The release of Cur and Zn2+ from the Cur@Zn2+@PET followed a time-programmed pattern in vitro. Specifically, cellular assays revealed that Cur@Zn2+@PET initially released Cur during the inflammatory phase, thereby markedly inhibit the expression of inflammatory cytokines TNF-a and IL-1β. Meanwhile, a significant release of Zn2+ was major part during the regeneration phase, serving to induce the osteogenic differentiation of rBMSC. Furthermore, rat model of anterior cruciate ligament reconstruction (ACLR) showed that through time-programmed drug release, Cur@Zn2+@PET could suppress the formation of fibrous interface (FI) caused by inflammatory response, combined with significant new bone (NB) formation during regeneration phase. Consequently, the implementation of the Cur@Zn2+@PET characterized by its time-programmed release patterns hold considerable promise for improving graft-host integration for sports-related injuries.
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Affiliation(s)
- Han Gao
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Ni Chen
- State Key Laboratory of Molecular Engineering of Polymers, Laboratory of Advanced Materials and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Luyi Sun
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Dandan Sheng
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Yuting Zhong
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Mingru Huang
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Chengxuan Yu
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Xing Yang
- Department of orthopedics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215500, Jiangsu, China
| | - Yuefeng Hao
- Department of orthopedics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215500, Jiangsu, China
| | - Shiyi Chen
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China.
| | - Zhengzhong Shao
- State Key Laboratory of Molecular Engineering of Polymers, Laboratory of Advanced Materials and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
| | - Jun Chen
- Sports Medicine Institute of Fudan University, Department of Sports Medicine, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China.
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von Witzleben M, Hahn J, Richter RF, de Freitas B, Steyer E, Schütz K, Vater C, Bernhardt A, Elschner C, Gelinsky M. Tailoring the pore design of embroidered structures by melt electrowriting to enhance the cell alignment in scaffold-based tendon reconstruction. BIOMATERIALS ADVANCES 2024; 156:213708. [PMID: 38029698 DOI: 10.1016/j.bioadv.2023.213708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
Tissue engineering of ligaments and tendons aims to reproduce the complex and hierarchical tissue structure while meeting the biomechanical and biological requirements. For the first time, the additive manufacturing methods of embroidery technology and melt electrowriting (MEW) were combined to mimic these properties closely. The mechanical benefits of embroidered structures were paired with a superficial micro-scale structure to provide a guide pattern for directional cell growth. An evaluation of several previously reported MEW fiber architectures was performed. The designs with the highest cell orientation of primary dermal fibroblasts were then applied to embroidery structures and subsequently evaluated using human adipose-derived stem cells (AT-MSC). The addition of MEW fibers resulted in the formation of a mechanically robust layer on the embroidered scaffolds, leading to composite structures with mechanical properties comparable to those of the anterior cruciate ligament. Furthermore, the combination of embroidered and MEW structures supports a higher cell orientation of AT-MSC compared to embroidered structures alone. Collagen coating further promoted cell attachment. Thus, these investigations provide a sound basis for the fabrication of heterogeneous and hierarchical synthetic tendon and ligament substitutes.
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Affiliation(s)
- Max von Witzleben
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Judith Hahn
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), Institute of Polymer Materials, Hohe Str. 6, 01069 Dresden, Germany
| | - Ron F Richter
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Bianca de Freitas
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Emily Steyer
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Kathleen Schütz
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Corina Vater
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Anne Bernhardt
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany
| | - Cindy Elschner
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), Institute of Polymer Materials, Hohe Str. 6, 01069 Dresden, Germany
| | - Michael Gelinsky
- Technische Universität Dresden, University Hospital Carl Gustav Carus and Faculty of Medicine, Centre for Translational Bone, Joint and Soft Tissue Research, Fetscherstr. 74, 01307 Dresden, Germany.
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Zaid HHG, Yang G, Xu Hua. Anterior Cruciate Ligament Reconstruction Using Autologous Hamstrings Augmented with Ligament Augmentation and Reconstruction Systems (LARS) or Synthetic Meshwork of LARS Compared with Four-Strand Hamstring Tendon Grafts Alone, a Prospective, Randomized Clinical Study with 2- to 8-Year Follow-Up. Indian J Orthop 2023; 57:1497-1509. [PMID: 37609011 PMCID: PMC10441880 DOI: 10.1007/s43465-023-00956-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/13/2023] [Indexed: 08/24/2023]
Abstract
Purpose To compare the long-term outcomes of anterior cruciate ligament (ACL) reconstruction using a four-strand hamstring tendon graft alone (hamstring group) or with synthetics (Ligament Augmentation and Reconstruction System, LARS group) or synthetic meshwork of LARS (meshwork group). Methods Patients who underwent ACL reconstruction using four-strand hamstring tendon grafts (hamstring group), autologous hamstrings augmented with the LARS (LARS group), or synthetic meshwork of LARS (meshwork group) were selected in this prospective randomized clinical study. Patient-reported outcome measures (PROMs) were obtained preoperatively; at 6, 12, and 18 months postoperatively; and at final follow-up between 3 and 8 years. Second-look arthroscopic findings were used to evaluate graft morphology based on graft tension, graft tear, and synovial coverage. Results A total of 141 consecutive patients underwent ACL reconstruction, 47 patients in each group, and 21 patients were lost to follow-up during the study period. At the 6-month follow-up, the IKDC scores and Lysholm scores were significantly better in the LARS group (P < 0.05). At the 6- and 12-month follow-ups, the KOS-ADLS, KOOS-activities of daily living and quality of life, NSARS scores, GRC scores, Tegner scores, and ACL-RSI scores were significantly better in the LARS group (P < 0.05). For the LARS group, hamstring group, and meshwork group, the cumulative failure rates were 8.5%, 12.8%, and 4.3%, respectively. Malposition of the femoral tunnel was significantly associated with cumulative failure (P < 0.05). There was no difference between the groups in other outcomes at any other time, including radiographic and arthroscopic outcomes. Conclusions ACL reconstruction using autologous hamstring augmented with LARS resulted in significantly better clinical scores with a faster return to sports and comparative side-to-side differences in graft laxity by 6 and 12 months follow-up. Despite these findings, no statistically significant differences were seen among the three patient groups in terms of objective outcomes and clinical scores at the 18-month, 3-year and 8-year follow-ups. Additionally, a malpositioned femoral tunnel was associated with graft failure.
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Affiliation(s)
- Hamood H. G. Zaid
- Department of Sports Medicine, The First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Street, Siming District, Xiamen, 361026 Fujian China
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, No. 282, Wusi Road, Gulou District, Fuzhou, 350122 Fujian China
| | - Guo Yang
- Department of Sports Medicine, The First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Street, Siming District, Xiamen, 361026 Fujian China
| | - Xu Hua
- Department of Orthopedics, Xinglin Branch of the First Affiliated Hospital of Xiamen University, No. 11 Xinglin Hongdai Road, Jimei District, Xiamen, 361026 Fujian China
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Nukuto K, Hoshino Y, Kataoka K, Kuroda R. Current development in surgical techniques, graft selection and additional procedures for anterior cruciate ligament injury: a path towards anatomic restoration and improved clinical outcomes-a narrative review. ANNALS OF JOINT 2023; 8:39. [PMID: 38529242 PMCID: PMC10929350 DOI: 10.21037/aoj-23-39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 07/30/2023] [Indexed: 03/27/2024]
Abstract
Background and Objective Anterior cruciate ligament (ACL) reconstruction has been widely used for ACL injury for a long time. However, residual rotational instability and osteoarthritic changes after ACL reconstruction have been identified as problems. Thus, anatomic reconstruction techniques, various types of grafts and additional procedures have been desired to improve the clinical outcomes and knee instability. Although clinical outcomes and knee stability are better than in the past, ipsilateral graft failures still occur in 4-17% and osteoarthritic changes are seen in about 20% of patients after ACL reconstruction. To remedy these problems, it is necessary to improve the understanding of various surgical techniques and grafts and to pursue further improvement of surgical techniques. Therefore, the objective of this review is to summarize the advantages and disadvantages of various surgical techniques and graft selection, and additional procedures for ACL injury. Methods A literature review was conducted on the surgical procedures for ACL injury. Recent trends in surgical techniques, graft selection, and additional procedures for ACL injury were described. We performed a literature search in PubMed for studies published from origin to May 8, 2023. Studies were required to be English-language articles. Key Content and Findings Although many reports indicate that double-bundle ACL reconstruction is comparable to anatomic single-bundle (SB) reconstruction, intraoperative complications such as tunnel coalition exist in double-bundle reconstruction, and the technique needs to be improved. ACL repair has shown good short-term results, but long-term results need to be examined in the future. Quadriceps tendon autograft is being used more frequently, but hamstrings tendon autograft and bone-patellar tendon-bone autograft also have good results. In addition, in higher-risk cases, lateral extra-articular tenodesis (LET) and anterolateral ligament (ALL) reconstruction can be performed with good results. Conclusions To further improve clinical outcomes, more anatomical reconstructions should be pursued. Autografts are better than allografts and synthetic grafts, but further study is needed to determine which graft is better. Additional procedures should be performed in highly unstable cases and in revision cases.
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Affiliation(s)
- Koji Nukuto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kiminari Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Legnani C, Ventura A. Synthetic grafts for anterior cruciate ligament reconstructive surgery. Med Eng Phys 2023; 117:103992. [PMID: 37331747 DOI: 10.1016/j.medengphy.2023.103992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 06/20/2023]
Abstract
The quest for a good and durable substitute to anterior cruciate ligament (ACL) is driving scientists to explore new promising areas of research. Autologous and allogenic ligament reconstruction bring satisfactory results in managing ACL surgery although their use is associated with significant drawbacks. To overcome the limitations of biologic grafts, many artificial devices have been developed and implanted as a substitute to the native ACL over the past decades. Although many synthetic grafts used in the past have been withdrawn from the market due to early mechanical failures ultimately leading to synovitis and osteoarthritis, there is recently a resurgence of interest in the use of synthetic ligaments for ACL reconstruction. However, this new generation of artificial ligaments, despite promising initial results, have shown to produce serious side effects such as high rupture rates, insufficient tendon-bone healing and loosening. For these reasons, recent advancements in biomedical engineering are focusing on improving technical features of artificial ligaments combining mechanical properties to biocompatibility. Bioactive coatings and surface modification methods have been proposed to enhance synthetic ligament biocompatibility and promote osseointegration. The path to the development of a safe and effective artificial ligament is still full of challenges, however recent advancements are leading the way towards a tissue-engineered substitute to the native ACL.
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Affiliation(s)
- Claudio Legnani
- IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan, Italy.
| | - Alberto Ventura
- IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan, Italy
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Wang R, Li B, Hou B. Reconstruction of chronic anterior cruciate ligament rupture using the ligament advanced reinforcement system artificial ligament-comparisons between patients over 50 years and under 50 years. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:112. [PMID: 36819588 PMCID: PMC9929750 DOI: 10.21037/atm-22-6330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023]
Abstract
Background With the increasing physical activity level in elderly population, anterior cruciate ligament (ACL) injuries are becoming more frequent. Due to the possible surgery complications, treatment for ACL rupture in patients with advanced age is still controversial. The purpose of this study was to compare the therapeutic effects of reconstruction using the ligament advanced reinforcement system (LARS) artificial ligament in patients older than 50 and patients younger than 50 with chronic ACL rupture. Methods Indications included: (I) concurrent history of subjective symptomatic anterior knee instability despite nonoperative rehabilitation for least 3 months, (II) positive preoperative Lachman and pivot shift tests, (III) ACL stump still connecting the femur with the tibia as demonstrated by Magnetic Resonance Imaging (MRI), and (IV) some residual ligament fibers still connecting the femur with the tibia as demonstrated by arthroscopy. Participants were divided into groups based on their age. Participants were divided into groups based on their age. A total of 37 patients who underwent reconstruction of chronic ACL rupture using the LARS artificial ligament were divided into group A (≥50 years, n=16) and group B (<50 years, n=21). Results The outcome measures were compared between the 2 groups. These included the baseline clinical data, the International Knee Documentation Committee (IKDC) scoring system, Pivot shift test, Lachman test, Kneelax arthrometer measurements, Tegner activity scale, Lysholm knee scoring scale, and Kellgren-Lawrence radiographic classification of arthritis and complications. Postoperative knee laxity and the functional examination were significantly improved compared to preoperative measurements for both groups (all P<0.01). No significant differences were found in postoperative knee laxity and functional examination between the 2 groups (all P>0.05). The level of osteoarthritis did not statistically increase in either group during follow-up (all P>0.05). No complications associated with the arthroscopic surgery were found in either group. Conclusions The reconstruction of chronic ACL rupture using the LARS artificial ligament showed similar therapeutic effects in patients over the age of 50 and those under the age of 50.
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Affiliation(s)
- Ronghao Wang
- Department of Gastrointestinal Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Bin Li
- Department of Joint Surgery and Sports Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bingzong Hou
- Department of Gastrointestinal Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
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Ambrosio L, Vadalà G, Castaldo R, Gentile G, Nibid L, Rabitti C, Ambrosio L, Franceschetti E, Samuelsson K, Senorski EH, Papalia R, Denaro V. Massive foreign body reaction and osteolysis following primary anterior cruciate ligament reconstruction with the ligament augmentation and reconstruction system (LARS): a case report with histopathological and physicochemical analysis. BMC Musculoskelet Disord 2022; 23:1140. [PMID: 36581922 PMCID: PMC9801556 DOI: 10.1186/s12891-022-05984-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 11/14/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Autologous hamstrings and patellar tendon have historically been considered the gold standard grafts for anterior cruciate ligament reconstruction (ACLR). In the last decades, the utilization of synthetic grafts has re-emerged due to advantageous lack of donor site morbidity and more rapid return to sport. The Ligament Augmentation and Reconstruction System (LARS) has demonstrated to be a valid and safe option for ACLR in the short term. However, recent studies have pointed out the notable frequency of associated complications, including synovitis, mechanical failure, and even chondrolysis requiring joint replacement. CASE PRESENTATION We report the case of a 23-year-old male who developed a serious foreign body reaction with wide osteolysis of both femoral and tibial tunnels following ACLR with LARS. During first-stage arthroscopy, we performed a debridement of the pseudocystic mass incorporating the anterior cruciate ligament (ACL) and extending towards the tunnels, which were filled with autologous anterior iliac crest bone graft chips. Histological analysis revealed the presence of chronic inflammation, fibrosis, and foreign body giant cells with synthetic fiber inclusions. Furthermore, physicochemical analysis showed signs of fiber depolymerization, increased crystallinity and formation of lipid peroxidation-derived aldehydes, which indicate mechanical aging and instability of the graft. After 8 months, revision surgery was performed and ACL revision surgery with autologous hamstrings was successfully carried out. CONCLUSIONS The use of the LARS grafts for ACLR should be cautiously contemplated considering the high risk of complications and early failure.
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Affiliation(s)
- Luca Ambrosio
- grid.488514.40000000417684285Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy ,grid.9657.d0000 0004 1757 5329Research Unit of Orthopaedic and Trauma Surgery, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Gianluca Vadalà
- grid.488514.40000000417684285Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy ,grid.9657.d0000 0004 1757 5329Research Unit of Orthopaedic and Trauma Surgery, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Rachele Castaldo
- grid.5326.20000 0001 1940 4177Institute of Polymers, Composites and Biomaterials, National Research Council, Naples, Italy
| | - Gennaro Gentile
- grid.5326.20000 0001 1940 4177Institute of Polymers, Composites and Biomaterials, National Research Council, Naples, Italy
| | - Lorenzo Nibid
- grid.488514.40000000417684285Department of Human Pathology, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Carla Rabitti
- grid.488514.40000000417684285Department of Human Pathology, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Luigi Ambrosio
- grid.5326.20000 0001 1940 4177Institute of Polymers, Composites and Biomaterials, National Research Council, Naples, Italy
| | - Edoardo Franceschetti
- grid.488514.40000000417684285Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy ,grid.9657.d0000 0004 1757 5329Research Unit of Orthopaedic and Trauma Surgery, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Kristian Samuelsson
- grid.8761.80000 0000 9919 9582Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden ,Sahlgrenska Sports Medicine Center, Gothenburg, Sweden ,grid.1649.a000000009445082XDepartment of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Eric Hamrin Senorski
- Sahlgrenska Sports Medicine Center, Gothenburg, Sweden ,grid.8761.80000 0000 9919 9582Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rocco Papalia
- grid.488514.40000000417684285Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy ,grid.9657.d0000 0004 1757 5329Research Unit of Orthopaedic and Trauma Surgery, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Vincenzo Denaro
- grid.488514.40000000417684285Operative Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy
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The promotive effect of grafts with the double-stranded peroneus longus tendon and with the four-stranded hamstring tendon on reconstruction of the posterior cruciate ligament injury. Orthop Traumatol Surg Res 2022; 108:103336. [PMID: 35643366 DOI: 10.1016/j.otsr.2022.103336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 02/07/2022] [Accepted: 03/16/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Posterior cruciate ligament (PCL) injury hampers the rotational stability and stability front to back of the knee joint, seriously affecting the quality of life of patients. Some studies have reported that the peroneus longus tendon (PLT) has sufficient length and strength. HYPOTHESIS We hypothesized that the PLT can be used as a novel appropriate material for PCL reconstruction therapy. MATERIALS AND METHODS Herein, we systematically analysed the clinical effect of the double-stranded PLT and the four-stranded hamstring tendon in the reconstruction of the PCL and compared the effectiveness and safety of these two surgical approaches in the reconstruction of PCL injury. A total of 48 patients with complete rupture of the PCL were divided into Group A (reconstructed with the double-stranded PLT, 25 cases) and Group B (reconstructed with the four-stranded hamstring tendon, 23 cases). RESULTS The patients were followed up for more than 1 year. The intraoperative time for tendon extraction was significantly shorter in Group A than Group B. Twenty-four months after operation, patients in the two groups showed the alleviated tibial posterior displacement and the increased IKDC score, Lysholm score and Tegner score. Nevertheless, these scores showed no significant differences between the two groups. Additionally, compared with the therapy using the four-stranded hamstring tendon, therapy using the double-stranded PLT is simpler and safer. DISCUSSION Both surgical methods are effective in the treatment of PCL injury. The PLT could be a good choice for PCL injury reconstruction material, especially when the four-stranded hamstring tendon is accidentally damaged or ineffective. Our study may provide guidance for the clinical treatment of PCL injury. LEVEL OF EVIDENCE III, retrospective study.
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Jalalah M, Ahmad A, Saleem A, Qadir MB, Khaliq Z, Khan MQ, Nazir A, Faisal M, Alsaiari M, Irfan M, Alsareii SA, Harraz FA. Electrospun Nanofiber/Textile Supported Composite Membranes with Improved Mechanical Performance for Biomedical Applications. MEMBRANES 2022; 12:membranes12111158. [PMID: 36422150 PMCID: PMC9693054 DOI: 10.3390/membranes12111158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 05/27/2023]
Abstract
Textile-supported nanocomposite as a scaffold has been extensively used in the medical field, mainly to give support to weak or harmed tissues. However, there are some challenges in fabricating the nanofiber/textile composite, i.e., suitable porous structure with defined pore size, less skin contact area, biocompatibility, and availability of degradable materials. Herein, polyamide-6 (PA) nanofibers were synthesized using needleless electrospinning with the toothed wheel as a spinneret. The electrospinning process was optimized using different process and solution parameters. In the next phase, optimized PA nanofiber membranes of optimum fiber diameter with uniform distribution and thickness were used in making nanofiber membrane-textile composite. Different textile fabrics (woven, non-woven, knitted) were developed. The optimized nanofiber membranes were combined with non-woven, woven, and knitted fabrics to make fabric-supported nanocomposite. The nanofiber/fabric composites were compared with available market woven and knitted meshes for mechanical properties, morphology, structure, and chemical interaction analysis. It was found that the tear strength of the nanofiber/woven composite was three times higher than market woven mesh, and the nanofiber/knitted composite was 2.5 times higher than market knitted mesh. The developed composite structures with woven and knitted fabric exhibited improved bursting strength (613.1 and 751.1 Kpa), tensile strength (195.76 and 227.85 N), and puncture resistance (68.76 and 57.47 N), respectively, than market available meshes. All these properties showed that PA nanofibers/textile structures could be utilized as a composite with multifunctional properties.
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Affiliation(s)
- Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Electrical Engineering, College of Engineering, Najran University, Najran 61441, Saudi Arabia
| | - Adnan Ahmad
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Asad Saleem
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Muhammad Bilal Qadir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Zubair Khaliq
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Muhammad Qamar Khan
- Department of Textile & Clothing, Karachi Campus, National Textile University, Karachi 74900, Pakistan
| | - Ahsan Nazir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - M. Faisal
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
| | - Mabkhoot Alsaiari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
| | - Muhammad Irfan
- Department of Electrical Engineering, College of Engineering, Najran University, Najran 61441, Saudi Arabia
| | - S. A. Alsareii
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Surgery, College of Medicine, Najran University, Najran 11001, Saudi Arabia
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
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11
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Smolle MA, Fischerauer SF, Zötsch S, Kiegerl AV, Sadoghi P, Gruber G, Leithner A, Bernhardt GA. Long-term outcomes of surgery using the Ligament Advanced Reinforcement System as treatment for anterior cruciate ligament tears. Bone Joint J 2022; 104-B:242-248. [PMID: 35094581 DOI: 10.1302/0301-620x.104b2.bjj-2021-0798.r2] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AIMS The aim of this prospective study was to assess the long-term clinical, radiological, functional, and quality of life (QoL)-related outcome of patients treated with the synthetic Ligament Advanced Reinforcement System (LARS) device for anterior cruciate ligament (ACL) rupture. METHODS A total of 41 patients who underwent ACL reconstruction with the LARS device (mean age 39.8 years (SD 12.1 ); 32% females (n = 13)) were prospectively included between August 2001 and March 2005. MRI scans and radiographs were performed at a median follow-up of 2.0 years (interquartile range (IQR) 1.3 to 3.0; n = 40) and 12.8 years (IQR 12.1 to 13.8; n = 22). Functional and QoL-related outcome was assessed in 29 patients at a median follow-up of 12.8 years (IQR 12.0 to 14.0) and clinically reconfirmed at latest median follow-up of 16.5 years (IQR 15.5 to 17.9). International Knee Documentation Committee (IKDC) and Tegner scores were obtained pre- and postoperatively, and Lysholm score postoperatively only. At latest follow-up, range of motion, knee stability tests, 36-Item Short Form Health Survey (SF-36), and IKDC scores were ascertained. Complications and reoperations during follow-up were documented. RESULTS Cumulative complication rate was 66% (n = 27), with 11 developing within one year from surgery and 16 after one year (including five patients with both early and late complications). Ten graft failures (24%) and eight cases of reactive synovitis were observed (20%). All 11 patients with early complications and ten with late complications underwent reoperation (including five with another surgical procedure for early complications), amounting to a cumulative reoperation rate of 51% (n = 21). Revision ACL reconstruction was performed in one patient (2.4%). Median IKDC at latest follow-up was 89.7 (IQR 78.2 to 93.1), being significantly worse in the event of previous complications. Lachman test was positive in 56% (n = 15) of reconstructed knees. All norm-based SF-36 items were at or above median at latest follow-up, and did not differ depending on development of complications. CONCLUSION Despite good functional and QoL-related results in the long term, the cumulative complication rate of 66%, including graft failures and reactive synovitis, has to be viewed with great concern. Cite this article: Bone Joint J 2022;104-B(2):242-248.
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Affiliation(s)
- Maria A Smolle
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Stefan F Fischerauer
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Silvia Zötsch
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Anna V Kiegerl
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Patrick Sadoghi
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Gerald Gruber
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Andreas Leithner
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
| | - Gerwin A Bernhardt
- Department of Orthopaedics and Trauma, Medizinische Universitat Graz, Graz, Austria
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12
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Aka C, Basal G. Mechanical and fatigue behaviour of artificial ligaments (ALs). J Mech Behav Biomed Mater 2022; 126:105063. [PMID: 34973487 DOI: 10.1016/j.jmbbm.2021.105063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 11/26/2022]
Abstract
A flexible biologic band, ACL is the most injured and ruptured ligament in the knees of humans and animals. This research aims to produce synthetic anterior cruciate ligaments (ACLs) and compare these ligaments' mechanical and fatigue life properties with the natural ACL and commercial synthetic grafts. Artificial ligaments were designed as a core-sheath type structure. The core consisted of straight, parallel yarns and the sheath was a tubular fabric produced by weaving or braiding techniques from polyester or Vectran® yarns. The mechanical properties of the resulting artificial ligaments (AL) were tested before and after the fatigue test and compared to those of the natural ACL and commercial artificial ACLs in the market. Results showed that all ligaments had sufficient tensile strength, and they retained it after the fatigue test. If constructed sheath and core parts were from the same type of yarns, the breaking load of ligaments was higher. The breaking strain and stiffness of woven structures, particularly with Vectran cores, were better than braided ones. After the fatigue test, the breaking strain and stiffness of AL structures with a braided sheath or polyester core were improved. This finding suggests that to prevent the laxity of knee preconditioning of the ligament is necessary if the fabric structure or yarn inherently has high breaking strain and low stiffness. Overall, this study shows that a variety of suitable candidates for replacing ruptured anterior cruciate ligaments could be developed by carefully combining the fatigue-resistant yarns with leno, narrow, and braided structures.
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Affiliation(s)
- C Aka
- Dokuz Eylül University Department of Textile Engineering, Turkey.
| | - G Basal
- Ege University Department of Textile Engineering, Turkey
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13
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Li H, Jiang F, Ge Y, Wan F, Li H, Chen S. Differences in artificial ligament graft osseointegration of the anterior cruciate ligament in a sheep model: a comparison between interference screw and cortical suspensory fixation. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1370. [PMID: 34733922 PMCID: PMC8506542 DOI: 10.21037/atm-21-1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 07/14/2021] [Indexed: 11/28/2022]
Abstract
Background Interference screws are the most common femoral fixation for anterior cruciate ligament (ACL) reconstruction with polyethylene terephthalate (PET) artificial ligaments. However, interference screws have several disadvantages, such as the risk of one tunnel blowout and damage to the graft. Suspensory fixations have the advantages of high tensile strength and promotion of graft bone contact. The purpose of this study was to compare PET artificial ligament graft osseointegration between interference screw fixation (ISF) and cortical suspensory fixation (CSF) for ACL reconstruction. Methods Forty sheep underwent ACL reconstruction of the right knee with PET artificial ligament. The graft was fixed with ISF or CSF for femoral fixation. Animals were randomly assigned to the ISF (n=20) or the CSF (n=20) groups. The sheep were sacrificed at 3 or 12 months postoperatively for biomechanical tests, micro computed tomography (micro-CT) scans, and histological assessments. Results The mean load-to-failure between the CSF group (836±355 N) appeared higher than that of the ISF group (604±277 N) at 3 months, but no significant difference was detected between the groups (P=0.24). At 12 months, there was also no significant difference in load-to-failure between the CSF and ISF groups (1,194±350 vs. 1,097±764 N; P=0.78). According to the micro-CT scan results, the femoral bone tunnel diameter of the ISF group appeared larger than that of the CSF group at 3 months (12±1 vs. 10±1 mm; P=0.02) and similar to that of the CSF group at 12 months (12±1 vs. 11±2 mm; P=0.38). Furthermore, histological results showed that at the graft-tunnel interface of the femoral tunnel aperture, disoriented fibers formed in the ISF group while oriented and dense fibers formed in the CSF group. Conclusions ACLR with synthetic ligament by cortical suspension devices with adjustable loops demonstrated a better graft-bone healing capacity at the femoral tunnel aperture compared with that from titanium interference screws over 12 months postoperatively. No significant difference was found in biomechanical strength between the two fixation methods during the early healing stage.
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Affiliation(s)
- Hong Li
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
| | - Fangyi Jiang
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
| | - Yunsheng Ge
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
| | - Fang Wan
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
| | - Hongyun Li
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
| | - Shiyi Chen
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
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14
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Savić L, Augustyniak EM, Kastensson A, Snelling S, Abhari RE, Baldwin M, Price A, Jackson W, Carr A, Mouthuy PA. Early development of a polycaprolactone electrospun augment for anterior cruciate ligament reconstruction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112414. [PMID: 34579923 DOI: 10.1016/j.msec.2021.112414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/23/2021] [Accepted: 08/31/2021] [Indexed: 11/28/2022]
Abstract
Despite the clinical success of Anterior Cruciate Ligament reconstruction (ACLR) in some patients, unsatisfactory clinical outcomes secondary to graft failure are seen, indicating the need to develop new regeneration strategies. The use of degradable and bioactive textiles has the potential to improve the biological repair of soft tissue. Electrospun (ES) filaments are particularly promising as they have the ability to mimic the structure of natural tissues and influence endogenous cell behaviour. In this study, we produced continuous polycaprolactone (PCL) ES filaments using a previously described electrospinning collection method. These filaments were stretched, twisted, and assembled into woven structures. The morphological, tensile, and biological properties of the woven fabric were then assessed. Scanning electron microscopy (SEM) images highlighted the aligned and ACL-like microfibre structure found in the stretched filaments. The tensile properties indicated that the ES fabric reached suitable strengths for a use as an ACLR augmentation device. Human ACL-derived cell cultured on the fabric showed approximately a 3-fold increase in cell number over 2 weeks and this was equivalent to a collagen coated synthetic suture commonly used in ACLR. Cells generally adopted a more elongated cell morphology on the ES fabric compared to the control suture, aligning themselves in the direction of the microfibres. A NRU assay confirmed that the ES fabric was non-cytotoxic according to regulatory standards. Overall, this study supports the development of ES textiles as augmentation devices for ACLR.
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Affiliation(s)
- Luka Savić
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Edyta M Augustyniak
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Adele Kastensson
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Roxanna E Abhari
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Mathew Baldwin
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andrew Price
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - William Jackson
- Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andrew Carr
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK; Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Pierre-Alexis Mouthuy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
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15
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Cai J, Xu J, Kang Y, Li Y, Wang L, Yan X, Jiang J, Zhao J. Acceleration of ligamentization and osseointegration processes after anterior cruciate ligament reconstruction with autologous tissue-engineered polyethylene terephthalate graft. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:770. [PMID: 34268383 PMCID: PMC8246152 DOI: 10.21037/atm-20-8048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 03/05/2021] [Indexed: 12/18/2022]
Abstract
Background Despite the advantages of excellent mechanical properties for rapid return to sports and early rehabilitation after anterior cruciate ligament (ACL) reconstruction with polyethylene terephthalate (PET) artificial ligament, the graft failure rate during long-term follow-up is relatively high due to poor graft-host incorporation. The purpose of the present study was to investigate the effect of autologous tissue-engineered PET (ATE-PET) grafts on osseointegration and ligamentization after ACL reconstruction. Methods Forty-eight New Zealand white rabbits were randomly divided into PET group (n=24) and ATE-PET group (n=24). In the ATE-PET group, the rabbits initially underwent subcutaneous implantation of the PET ligament. Two weeks later, unilateral ipsilateral ACL reconstruction was performed using an ATE-PET graft. In the PET group, the rabbits underwent ACL reconstruction using PET grafts as controls. Macroscopic observation, micro-computed tomography, histological and immunofluorescent staining, and biomechanical tests were conducted to evaluate the effects at 4 and 12 weeks postoperatively. Results The ATE-PET graft was highly pre-vascularized with myofibroblast aggregation after two weeks of subcutaneous implantation. With regard to the intraosseous part of the graft, the ATE-PET group had significantly higher bone mineral density and bone volume/total volume ratio at 12 weeks. Histologically, the width of the interface between the graft and bone was smaller. Regarding the intra-articular part, thicker tissue coverage with a glossy appearance was observed in the ATE-PET group at 12 weeks on macroscopic observation. Histological staining also showed more collagen fibers grew in the grafts with fewer inflammatory reactions of the ATE-PET group at both 4 and 12 weeks. Immunofluorescently, both α-SMA-positive vessels and α-SMA-positive myofibroblasts were found to be significantly greater around the graft in the ATE-PET group at 4 weeks and markedly declined at 12 weeks. Moreover, the ATE-PET group presented significantly greater failure load and stiffness than the PET group at 12 weeks (53.7±5.4 vs. 42.5±4.5 N, P<0.01; 12.9±3.0 vs. 9.8±1.3 N/mm, P=0.04). Conclusions The ATE-PET artificial ligament with pre-vascularization and myofibroblast aggregation could effectively accelerate intra-articular graft ligamentization and intraosseous graft osseointegration, thus enhancing the biomechanical properties after ACL reconstruction in a rabbit model.
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Affiliation(s)
- Jiangyu Cai
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, China
| | - Junjie Xu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yuhao Kang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yufeng Li
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Liren Wang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiaoyu Yan
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jia Jiang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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16
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Su M, Jia X, Zhang Z, Jin Z, Li Y, Dong Q, Xu W. Medium-Term (Least 5 Years) Comparative Outcomes in Anterior Cruciate Ligament Reconstruction Using 4SHG, Allograft, and LARS Ligament. Clin J Sport Med 2021; 31:e101-e110. [PMID: 30855342 PMCID: PMC7928216 DOI: 10.1097/jsm.0000000000000730] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/21/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare the clinical efficacy of anterior cruciate ligament (ACL) reconstruction with 4-strand hamstring tendon autograft (4SHG), allograft and the Ligament Advanced Reinforcement System (LARS) ligament, and to find the causes of cumulative failure or nonreturn to sport. DESIGN Retrospective case series. SETTING Department of Orthopedic Surgery, the second affiliated hospital of Soochow University, Suzhou, Jiangsu, China. PATIENTS Three hundred six patients with isolated ACL deficiency were included. Two hundred twenty-nine patients met the inclusion/exclusion criteria, and finally, 185 of these patients participated in this study. INTERVENTIONS Anterior cruciate ligament reconstruction using 4SHG, allograft, and LARS. MAIN OUTCOME MEASURES Objective knee function, subjective knee function, and information regarding return to sport, cumulative failure, and complications. Secondary: distribution of tunnel position and tunnel enlargement. RESULTS There were no statistically significant differences between the 3 groups regarding all the clinical objective and subjective results, return to sport, complications, or cumulative failures (P > 0.05). One hundred twenty-eight patients (69.2%, 128/185) returned to sport. Preoperative (after injury) Tegner scores were inferior to postoperative Tegner scores, and postoperative Tegner scores were inferior to preinjury Tegner scores (P < 0.01). The femoral tunnel malposition was significantly associated with cumulative failure (P < 0.05). CONCLUSIONS There were no statistically significant differences among the 4SHG, allograft, and LARS ligament in terms of the clinical outcomes after ACL reconstruction (ACLR) at 5-years follow-up. Interestingly, ACLR could improve the functional and motorial level of the knee, but patients had great difficulty in regaining the level of preinjury movement. In addition, the malposition of the femoral tunnel was an important cause of cumulative failure.
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Affiliation(s)
- Mengdi Su
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Xinyu Jia
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Zaihang Zhang
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Zhigao Jin
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Yong Li
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Qirong Dong
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
| | - Wei Xu
- Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- School of Medicine, Soochow University, Suzhou, Jiangsu, China; and
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17
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Shiroud Heidari B, Ruan R, De-Juan-Pardo EM, Zheng M, Doyle B. Biofabrication and Signaling Strategies for Tendon/Ligament Interfacial Tissue Engineering. ACS Biomater Sci Eng 2021; 7:383-399. [PMID: 33492125 DOI: 10.1021/acsbiomaterials.0c00731] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Tendons and ligaments (TL) have poor healing capability, and for serious injuries like tears or ruptures, surgical intervention employing autografts or allografts is usually required. Current tissue replacements are nonideal and can lead to future problems such as high retear rates, poor tissue integration, or heterotopic ossification. Alternatively, tissue engineering strategies are being pursued using biodegradable scaffolds. As tendons connect muscle and bone and ligaments attach bones, the interface of TL with other tissues represent complex structures, and this intricacy must be considered in tissue engineered approaches. In this paper, we review recent biofabrication and signaling strategies for biodegradable polymeric scaffolds for TL interfacial tissue engineering. First, we discuss biodegradable polymeric scaffolds based on the fabrication techniques as well as the target tissue application. Next, we consider the effect of signaling factors, including cell culture, growth factors, and biophysical stimulation. Then, we discuss human clinical studies on TL tissue healing using commercial synthetic scaffolds that have occurred over the past decade. Finally, we highlight the challenges and future directions for biodegradable scaffolds in the field of TL and interface tissue engineering.
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Affiliation(s)
- Behzad Shiroud Heidari
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and the UWA Centre for Medical Research, The University of Western Australia, Nedlands, Western Australia 6009, Australia.,School of Engineering, The University of Western Australia, Perth, Western Australia 6009, Australia.,Australian Research Council Centre for Personalised Therapeutics Technologies, Australia
| | - Rui Ruan
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Elena M De-Juan-Pardo
- School of Engineering, The University of Western Australia, Perth, Western Australia 6009, Australia.,T3mPLATE, Harry Perkins Institute of Medical Research, QEII Medical Centre and the UWA Centre for Medical Research, The University of Western Australia, Nedlands, Western Australia 6009, Australia.,Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Minghao Zheng
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia.,Perron Institute for Neurological and Translational Science, Nedlands, Western Australia 6009, Australia
| | - Barry Doyle
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and the UWA Centre for Medical Research, The University of Western Australia, Nedlands, Western Australia 6009, Australia.,School of Engineering, The University of Western Australia, Perth, Western Australia 6009, Australia.,Australian Research Council Centre for Personalised Therapeutics Technologies, Australia.,BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
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18
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Smith PA, Stannard JP, Bozynski CC, Kuroki K, Cook CR, Cook JL. Patellar Bone-Tendon-Bone Autografts versus Quadriceps Tendon Allograft with Synthetic Augmentation in a Canine Model. J Knee Surg 2020; 33:1256-1266. [PMID: 31461759 DOI: 10.1055/s-0039-1695040] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patellar bone-tendon-bone (pBTB) autografts are often considered the "gold standard" for complete anterior cruciate ligament (ACL) reconstruction and are also associated with significant complications and early-onset knee osteoarthritis (OA). A novel quadriceps tendon allograft with synthetic augmentation, or "internal brace" (QTIB), has been reported to have potential advantages for ACL reconstruction based on animal model data. In this preclinical canine comparison study, we hypothesized that QTIB allograft compared with pBTB autograft would provide superior durability for knee stability, function, and prevention of OA. Under approval from our Institutional Animal Care and Use Committee, adult purpose-bred research hounds (n = 10) underwent arthroscopic complete transection of the ACL followed by either an arthroscopic-assisted all-inside ACL reconstruction using the QTIB allograft (n = 5) or pBTB autograft (n = 5). Contralateral knees were used as nonoperated controls (n = 10). Radiographic and arthroscopic assessments were performed at 2 and 6 months, respectively, after surgery. Anterior drawer, internal rotation, lameness, kinetics, pain, effusion, and comfortable range of knee motion were measured at 2, 3, and 6 months. Biomechanical and histologic assessments were performed at 6 months. All reconstructed knees were stable and had intact ACL grafts 6 months after surgery. At 6 months, QTIB reconstructed knees had significantly less lameness, lower pain, less effusion, and increased range of motion when compared with BTB knees (p < 0.05). BTB knees had significantly higher radiographic OA scores than QTIB knees at 6 months (p < 0.05). Superior outcomes associated with QTIB allograft may be due to the lack of donor site morbidity, the use of a robust tendon graft, and/or protection of the graft from the synthetic augmentation. Robust tendon grafts combined with a synthetic internal brace and platelet-rich plasma (PRP) may allow for more rapid and robust tendon-bone healing and graft "ligamentization," which protects the graft from early failure and rapid OA development that can plague commonly-used allografts.
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Affiliation(s)
- Patrick A Smith
- Department of Orthopedic Surgery, University of Missouri, Columbia, Missouri.,Department of Orthopedic Surgery, Columbia Orthopedic Group, Columbia, Missouri
| | - James P Stannard
- Department of Orthopedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopedics, University of Missouri, Columbia, Missouri
| | - Chantelle C Bozynski
- Department of Orthopedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopedics, University of Missouri, Columbia, Missouri
| | - Keiichi Kuroki
- Thompson Laboratory for Regenerative Orthopedics, University of Missouri, Columbia, Missouri
| | - Cristi R Cook
- Department of Orthopedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopedics, University of Missouri, Columbia, Missouri
| | - James L Cook
- Department of Orthopedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopedics, University of Missouri, Columbia, Missouri
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19
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Du Y, Dai H, Wang Z, Wu D, Shi C, Xiao T, Li Z. A case report of traumatic osteoarthritis associated with LARS artificial ligament use in anterior cruciate ligament reconstruction. BMC Musculoskelet Disord 2020; 21:745. [PMID: 33183256 PMCID: PMC7664045 DOI: 10.1186/s12891-020-03764-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 11/03/2020] [Indexed: 02/01/2023] Open
Abstract
Background A ligament advanced reinforcement system (LARS) artificial ligament has been proposed for use in anterior cruciate ligament (ACL) reconstruction, and many reports have shown its success in ACL reconstruction. However, there are great concerns about the potential risk of complications, which might prevent its extensive use. Late failure may occur due to serious complications. Case presentation We report a rare case of serious osteoarthritis that occurred 2 years postoperatively in a 51-year-old man who underwent reconstruction with an LARS artificial ligament. In X-rays, the tibial tunnel was placed too posteriorly. MRI showed that the tibial tunnel was enlarged, and there was a large effusion in the knee joint. The LARS device was rough and worn. Histologically, a large number of fibroblasts and a few multinucleated giant cells infiltrated the graft fibres. Conclusion Our findings remind surgeons that an LARS device should be with great caution in ACL reconstruction.
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Affiliation(s)
- Yuanliang Du
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Haifeng Dai
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Zhihui Wang
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Di Wu
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Changjiang Shi
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Tianjie Xiao
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China
| | - Zhihuai Li
- Department of Joint Surgery, Affiliated Hospital of Chengde Medical University, No.36 Nanyingzi Street, Chengde, Heibei Province, China.
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20
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Rangel A, Colaço L, Nguyen N, Grosset JF, Egles C, Migonney V. Adapting Mechanical Characterization of a Biodegradable Polymer to Physiological Approach of Anterior Cruciate Ligament Functions. Ing Rech Biomed 2020. [DOI: 10.1016/j.irbm.2020.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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21
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Cai J, Zhang Q, Chen J, Jiang J, Mo X, He C, Zhao J. Electrodeposition of calcium phosphate onto polyethylene terephthalate artificial ligament enhances graft-bone integration after anterior cruciate ligament reconstruction. Bioact Mater 2020; 6:783-793. [PMID: 33024899 PMCID: PMC7527997 DOI: 10.1016/j.bioactmat.2020.08.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/03/2020] [Accepted: 08/17/2020] [Indexed: 12/18/2022] Open
Abstract
It is a big challenge to develop a polyethylene terephthalate (PET) artificial ligament with excellent osteogenetic activity to enhance graft-bone integration for ligament reconstruction. Herein, we evaluated the effect of biomineralization (BM) and electrodeposition (ED) method for depositing calcium-phosphate (CaP) on the PET artificial ligament in vitro and in vivo. Scanning electron microscopy and energy-dispersive X-Ray spectrometer mapping analysis revealed that the ED-CaP had more uniform particles and element distribution (Ca, P and O), and thermogravimetric analysis showed there were more CaP on the PET/ED-CaP than the PET/BM-CaP scaffold. Moreover, the hydrophilicity of PET scaffolds was significantly improved after CaP deposition. In vitro study showed that CaP coating via BM or ED method could improve the attachment and proliferation of MC3T3-E1 cells, and ED-CaP coating significantly increased osteogenic differentiation of the cells, in which the Wnt/β-catenin signaling pathway might be involved. In addition, radiological, histological and immunohistochemical results of in vivo study in a rabbit anterior cruciate ligament (ACL) reconstruction model demonstrated that the PET/BM-CaP and PET/ED-CaP scaffolds significantly improved graft-bone integration process compared to the PET scaffold. More importantly, larger areas of new bone ingrowth and the formation of fibrocartilage tissue were observed at 12 weeks in the PET/ED-CaP group, and the biomechanical tests showed increased ultimate failure load and stiffness in PET/ED-CaP group compared to PET/BM-CaP and PET group. Therefore, ED of CaP is an effective strategy for the modification of PET artificial ligament and can enhance graft-bone integration both in vitro and in vivo.
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Affiliation(s)
- Jiangyu Cai
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Qianqian Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Jiebo Chen
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Jia Jiang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Chuanglong He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
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22
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No YJ, Castilho M, Ramaswamy Y, Zreiqat H. Role of Biomaterials and Controlled Architecture on Tendon/Ligament Repair and Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904511. [PMID: 31814177 DOI: 10.1002/adma.201904511] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 11/10/2019] [Indexed: 06/10/2023]
Abstract
Engineering synthetic scaffolds to repair and regenerate ruptured native tendon and ligament (T/L) tissues is a significant engineering challenge due to the need to satisfy both the unique biological and biomechanical properties of these tissues. Long-term clinical outcomes of synthetic scaffolds relying solely on high uniaxial tensile strength are poor with high rates of implant rupture and synovitis. Ideal biomaterials for T/L repair and regeneration need to possess the appropriate biological and biomechanical properties necessary for the successful repair and regeneration of ruptured tendon and ligament tissues.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Miguel Castilho
- Department of Orthopedics, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
- Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, 02138, USA
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Chaker Jomaa M, Gultekin S, Orchard J, Driscoll T, Orchard J. Australian Footballers Returning from Anterior Cruciate Ligament Reconstruction Later than 12 Months have Worse Outcomes. Indian J Orthop 2020; 54:317-323. [PMID: 32399151 PMCID: PMC7205950 DOI: 10.1007/s43465-020-00092-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/10/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND There is evidence that early return to competition post-anterior cruciate ligament (ACL) injury increases risk of re-injury. AIMS To compare subsequent ACL and other injury risks following ACL reconstruction for Australian Football League (AFL) players returning to competition at different times post-injury. METHODS AFL players returning from ACL reconstruction in the 1992-2014 seasons were divided into three groups based on return to competition time (< 10, 10-12 and > 12 months). Non-reconstructed injuries and artificial ligament reconstructions were excluded. Subsequent ACL injury rates were calculated based on time since injury and number of return matches played. Risk of other knee and hamstring muscle injuries was also calculated. RESULTS There were 233 ACL reconstructions that returned to play in the AFL during the time period under study and met our inclusion criteria. The per-game risk of subsequent ACL injury decreased with a log decay from 1.2 to 0.15% during the first 20 games back (R 2 = 0.43). Players returning at > 12 months had higher overall percentage of future career games missed through subsequent ACL injuries (4.8% vs. 2.4%), and through all hamstring and knee injuries combined (12.6% vs. 8.4%) than players who returned at ≤ 12 months (both P < 0.001). Players returning at > 12 months had higher risk of knee cartilage (3.7%) and patella tendon (0.6%) injury than those returning at 10-12 months (1.5%, 0.1%, respectively). CONCLUSION Players returning from ACL reconstruction at greater than 12 months had significantly higher rates of future games missed through both subsequent ACL injuries and through all hamstring and knee injuries combined. It may be true that both early and late return to play lead to suboptimal outcomes compared to average return-to-play times.
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Affiliation(s)
| | - Sinem Gultekin
- School of Medicine, The University of Sydney, Sydney, Australia
| | - Jessica Orchard
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
| | - Tim Driscoll
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
| | - John Orchard
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
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Tulloch SJ, Devitt BM, Porter T, Hartwig T, Klemm H, Hookway S, Norsworthy CJ. Primary ACL reconstruction using the LARS device is associated with a high failure rate at minimum of 6-year follow-up. Knee Surg Sports Traumatol Arthrosc 2019; 27:3626-3632. [PMID: 30903217 DOI: 10.1007/s00167-019-05478-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 03/06/2019] [Indexed: 01/10/2023]
Abstract
PURPOSE The Ligament Augmentation and Reconstruction System (LARS®) is a synthetic ligament consisting of fibres made of polyethylene terephthalate. Despite the LARS being used as an anterior cruciate ligament (ACL) device for nearly 30 years and the well-documented complications from earlier synthetic ligament designs, there is a paucity of published medium- to long-term results. The aim of this study is to report the clinical and functional outcomes after ACL reconstruction using the LARS at a minimum follow-up of 6 years. METHODS Results of a single surgeon's entire cohort of 55 patients who underwent primary LARS ACL surgery were reviewed at a median of 7.8 years (6.0-9.4). Patient-reported outcome measures including the International Knee Documentation Committee (IKDC) score and 36-Item Short Form Health Survey (SF-36) were collected and clinical assessment consisted of range of motion (ROM) and the KT-1000 arthrometer to assess the side-side difference in the operative and non-operative knee. Mechanical failures of the graft were confirmed at revision surgery and a survivorship analysis was performed using the Kaplan-Meier method. RESULTS The overall mechanical failure rate was 17/51 (33.3%) with ruptures occurring at a median 3.9 years (0.6-8.8 years) following primary LARS ACL surgery. Secondary operative procedures were performed in 39.2% of patients. For intact grafts, there was no statistically significant difference is side-to-side ROM or anterior knee laxity and subjective scores revealed a median IKDC subjective score of 85.1 (26.4-100) and SF-36 physical component score of 94.1. CONCLUSION The rates of LARS ACL construct failure (33.3%) in this cohort are high and based on these results the LARS should not be considered as a graft option for primary ACL reconstruction. LEVEL OF EVIDENCE III, cohort study.
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Affiliation(s)
| | | | - Tabitha Porter
- Epworth Hospital, 89 Bridge Road, Richmond, VIC, 3121, Australia
| | - Taylor Hartwig
- Epworth Hospital, 89 Bridge Road, Richmond, VIC, 3121, Australia
| | - Haydn Klemm
- Epworth Hospital, 89 Bridge Road, Richmond, VIC, 3121, Australia
| | - Sam Hookway
- Epworth Hospital, 89 Bridge Road, Richmond, VIC, 3121, Australia
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Tulloch SJ, Devitt BM, Norsworthy CJ, Mow C. Synovitis following anterior cruciate ligament reconstruction using the LARS device. Knee Surg Sports Traumatol Arthrosc 2019; 27:2592-2598. [PMID: 30406813 DOI: 10.1007/s00167-018-5280-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 10/29/2018] [Indexed: 01/10/2023]
Abstract
PURPOSE The Ligament Augmentation and Reconstruction System (LARS®) has been at the forefront of a recent revival in the use of synthetic ligaments for ACL reconstruction. However, despite promising short-to-mid-term results its role has been approached with caution due to a high number of major complications in previous synthetic graft designs including mechanical failures, synovitis and osteoarthritis. This study aims to report on the incidence of synovitis in a series of patients undergoing second-look surgery following LARS ACL reconstruction. METHODS A retrospective analysis was performed of a single surgeon's series of 12 patients that underwent second-look arthroscopic surgery following primary LARS ACL surgery for indications including mechanical symptoms (meniscal tears/cyclops lesions/chondral flaps) and/or symptomatic instability secondary to LARS failure. In all cases an examination under anaesthesia (EUA) was performed, and a qualitative assessment of the synovium was carried out and graded as normal, reactive or inflammatory. A synovial biopsy was performed in all knees with visible evidence of synovitis and in all cases of LARS failure. RESULTS The second-look arthroscopy was performed at a mean of 23 months (7-66) after the index surgery. In 6 (50%) knees the LARS device had failed necessitating removal and revision ACL reconstruction, while in the remaining 6 knees the LARS was still intact. Arthroscopic evaluation of the synovium revealed a normal appearance in 8 knees (67%) and reactive synovitis in 4 knees (23%); of these 4 knees, one had an intact LARS device and 3 had failed LARS. Histological examination from these 4 knees and the 3 knees with graft failures without visible synovitis revealed chronic hypertrophic synovitis (moderate 2, mild 5) in all cases with rare giant cells, consistent with a reaction to foreign body material. CONCLUSIONS Foreign body synovitis is a common finding in our series of patients undergoing a repeat arthroscopy following a LARS ACL reconstruction. The histological diagnosis of synovitis was more frequently encountered than an arthroscopic appearance of synovitis. Whilst the results of this case series cannot support a direct causative link between LARS failure and the development of synovitis, this study highlights the need to remain vigilant about the risk of reactive synovitis following LARS ACL reconstruction due to exposure of the knee to foreign body material. LEVEL OF EVIDENCE Level IV, case series.
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Affiliation(s)
| | | | | | - Chris Mow
- Melbourne Pathology, Private Bag 5, Collingwood, VIC, 3066, Australia
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26
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Ali AA, Abdelwahab MB. Short-Term Outcome of Multi-Ligament Knee Injury among Sudanese Patients. Open Access Maced J Med Sci 2019; 7:1486-1493. [PMID: 31198460 PMCID: PMC6542394 DOI: 10.3889/oamjms.2019.282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND: Multi-ligament knee injury is the state of having two or more of the major knee ligaments, namely: the anterior cruciate ligament (ACL), the posterior cruciate ligament (PCL), the medial collateral ligament (MCL), the lateral collateral ligament (LCL), the posteromedial corner (PMC), and the posterolateral corner (PLC). The knee is a hinge joint; this dictates two direction movements on the y-axis plane. The knee joints carry the weight load of the body uniquely. The role of the knee ligaments is not conserved only to maintain knee in a rigid position while standing, but also orchestrates the biomechanics of knee motion in harmony. Multi-ligament knee injury is very rare (incidence < 10:10,000 of trauma cases). Patients with multiple ligaments injuries of the knee become disabled for a long period. This disability rises from the pain and stiffness of the knee joint. A disability that might be associated with increased frequencies of sick leave from work, or much more dire consequences, such as quitting a job or being relieved of duty. AIM: To assess the functional outcome of the knee of patients with a multi-ligament knee injury after treatment using a standard scoring system and to determine the recovery rates of each treatment option to a multi-ligament knee injury. METHODS: it is a cross-sectional study conducted from January 2018 to January 2019. All patients with multi-ligament knee injuries that were diagnosed by MRI, and underwent reconstruction surgeries or on the waiting list, at Ribat University Hospital and Alyaa Specialized Hospital, Alkuwiti specialised hospital, and Haj Alsafi Hospital for the past 2 years were included. Lyshlome knee scoring scale was used to assess the functional outcome of each patient. RESULTS: 24 patients were enrolled in this study (16 had reconstruction surgery, 8 did not). 3 had excellent outcome (LKSS = 95 – 100), 8 of them had good score (LKSS = 84-94), 5 had fair outcome (LKSS = 65-83). All those who did not have reconstruction had a poor score (LKSS < 64). CONCLUSION: Reconstruction of multi-ligament knee injury shows a good outcome than it was left alone. Post-operative physiotherapy increases the potential of reconstruction. While our data is limited because of the rare condition, we plan to expand our study area to include a larger sample size. We also recommend extending the post-operative physiotherapy to improve the outcome of a multi-ligament knee injury.
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Tsai SH, Lee CH, Tong KM, Wang SP, Lee KT, Tsai WC, Chen CP. Activity-related outcome in anterior cruciate ligament reconstruction with synthetic ligament advanced reinforcement system. J Chin Med Assoc 2019; 82:235-238. [PMID: 30913119 DOI: 10.1097/jcma.0000000000000035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Arthroscopic anterior cruciate ligament (ACL) reconstruction with ligament advanced reinforcement system (LARS) had revealed good results with low complication and failure rate in series of studies. The specific candidates for ACL reconstruction with LARS are still unknown anyway. The purpose of this study is to evaluate the activity-related outcome in ACL reconstruction using LARS ligament. METHODS A total of 43 unilateral arthroscopic ACL reconstructions with LARS were collected and divided into two groups: group A (preinjury Tegner score ≥ 6, n = 20) and group B (preinjury Tegner score < 6, n = 23). We had analyzed the stability of knee and functional outcome with a minimum of 2-years follow up. RESULTS All patients were aware of improvement over the knee stability immediately after ACL reconstruction with LARS. The functional outcome of knee was improved in both groups by analysis with the Lysholm score and modified International Knee Documentation Committee (IKDC) score. The postoperative grading of the knee examination form of modified IKDC grade showed no statistical difference in both groups. CONCLUSION Arthroscopic ACL reconstruction with LARS was encouraged as an alternative option even in high sports demand patients.
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Affiliation(s)
- Shang-Hsuan Tsai
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
- Department of Orthopedic Surgery, Feng Yuan Hospital, Ministry of Health and Welfare, Taichung, Taiwan, ROC
| | - Cheng-Hung Lee
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
- Department of Biotechnology, Hung Kuang University, Taichung, Taiwan, ROC
| | - Kwok-Man Tong
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Shun-Ping Wang
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Kun-Tsan Lee
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Wen-Chen Tsai
- Department of Public Health, China Medical University, Taichung, Taiwan, ROC
| | - Chao-Ping Chen
- Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
- Department of Public Health, China Medical University, Taichung, Taiwan, ROC
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan, ROC
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Geraci A, Riccardi A, Monia Montagner I, Pilla D, Camarda L, D'Arienzo A, D'arienzo M. Acromion Clavicular Joint Reconstruction with LARS Ligament in Acute Dislocation. THE ARCHIVES OF BONE AND JOINT SURGERY 2019; 7:143-150. [PMID: 31211192 PMCID: PMC6510915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 05/28/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND The acromion clavicular joint dislocations are common injuries of the shoulder. The severity is dependent upon the degree of ligamentous injury. Surgical treatment is typically performed in higher grade acromioclavicular separation with several static and dynamic operative procedures with or without primary ligament replacement. METHODS 47 patients with acute Rockwood type III, IV, and V injuries were treated surgically with LARS reconstruction. The success of technique was evaluated by radiographic outcomes for each patient at every follow-up visit (one, three, 12 months), while to assess pain reduction and clinical evaluation Visual Analogue scale score (VAS) and Constant-Murley score (CMA) was performed, respectively. An One Way Analysis of Variance (Kruskal-Wallis test), a multiple comparison Turket test, or a t-test (Mann-Whitney Rank Sum Test) were used when required. RESULTS Follow-up radiographs revealed maintenance of anatomical reduction in 41 patients, and no bone erosions has been identified. In short-term joint functional recovery has been observed. Indeed, after 12 months pain on the VAS-scale in all groups decreased significantly (P < 0.05), and the CMS revealed a significant overall improvement (P < 0.05). CONCLUSION These data demonstrate that the use of the LARS allows to provide stability to the joint and especially to ensure its natural elasticity, relieving pain and improving joint function already one month post-surgery.
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Affiliation(s)
- Alessandro Geraci
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Alberto Riccardi
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Isabella Monia Montagner
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Dario Pilla
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Lawrece Camarda
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Antonio D'Arienzo
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
| | - Michele D'arienzo
- Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
- Department of Orthopedic Surgery, University of Palermo (DiChirOnS), Palermo, Italy
- Research performed at Orthopedic Department, San Giacomo Apostolo Hospital, Castelfranco Veneto, Italy
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Sinagra ZP, Kop A, Pabbruwe M, Parry J, Clark G. Foreign Body Reaction Associated With Artificial LARS Ligaments: A Retrieval Study. Orthop J Sports Med 2018; 6:2325967118811604. [PMID: 30547043 PMCID: PMC6287308 DOI: 10.1177/2325967118811604] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: Artificial ligaments have been developed and used in the treatment of ligamentous injuries since the 1970s. The early generation of artificial ligaments showed promising short-term results but resulted in high rates of rupture and inflammatory reaction in the surrounding tissues. Purpose: To determine whether the use of Ligament Augmentation and Reconstruction System (LARS) ligaments is associated with the development of intra-articular foreign body reaction. Study Design: Case series; Level of evidence, 4. Methods: LARS ligaments were explanted from 15 patients under 6 consultant orthopaedic surgeons at 8 surgical centers. Of these, 14 explanted samples were sent for macroscopic and histological analysis, with the 1 remaining sample sent for scanning electron microscopy, to assess for inflammatory change as well as the degree of fibrous tissue ingrowth. Results: We observed a foreign body reaction in 10 of 14 explanted LARS ligaments. Seven samples demonstrated fibrous tissue ingrowth, with 5 producing only focal or incomplete ingrowth. The 2 samples with extensive fibrous coverage were completely free of any foreign body reaction, while all 5 remaining samples with only focal or partial fibrous ingrowth were associated with at least some degree of harmful immune response. Conclusion: The LARS ligament is still associated with a clinically significant degree of foreign body reaction despite the LARS Company’s efforts to reduce complications through improved design. The development and completion of fibrous tissue ingrowth may work to reduce the occurrence of a foreign body reaction.
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Affiliation(s)
| | - Alan Kop
- Centre for Implant Technology and Retrieval Analysis, Department of Medical Engineering and Physics, Royal Perth Hospital, Perth, Australia
| | - Moreica Pabbruwe
- Centre for Implant Technology and Retrieval Analysis, Department of Medical Engineering and Physics, Royal Perth Hospital, Perth, Australia
| | - Jeremy Parry
- Pathwest Laboratory Medicine WA, Fiona Stanley Hospital, Perth, Australia
| | - Gavin Clark
- St John of God Hospital, Subiaco, Perth, Australia
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Elveos MM, Drogset JO, Engebretsen L, Brønn R, Lundemo TO, Gifstad T. Anterior Cruciate Ligament Reconstruction Using a Bone-Patellar Tendon-Bone Graft With and Without a Ligament Augmentation Device: A 25-Year Follow-up of a Prospective Randomized Controlled Trial. Orthop J Sports Med 2018; 6:2325967118808778. [PMID: 30480022 PMCID: PMC6247493 DOI: 10.1177/2325967118808778] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Various grafts and ligament augmentation devices (LADs) have been used in the search for optimal reconstruction of the anterior cruciate ligament (ACL). Purpose To compare 25-year follow-up results after ACL reconstruction using a bone-patellar tendon-bone (BPTB) graft with or without the Kennedy LAD. Study Design Randomized controlled trial; Level of evidence, 1. Methods One hundred patients undergoing ACL reconstruction between 1991 and 1993 were randomized into 2 groups: reconstruction using a BPTB graft alone (BPTB group, 51 patients) or a BPTB graft with the Kennedy LAD (LAD group, 49 patients). The 25-year follow-up evaluation included a clinical knee examination, patient-reported outcome measures, and an assessment of radiological osteoarthritis (OA) according to the Ahlbäck classification. Additional outcomes were reruptures and knee arthroplasty. Results Ninety-three patients (93%) were available for the follow-up evaluation: 48 patients in the BPTB group and 45 in the LAD group. Through telephone calls, 26 patients were excluded from further investigation because of reruptures and arthroplasty in the knee of interest; 67 patients were further investigated. A total of 43 of 44 (98%) and 42 of 44 (95%) patients had negative or 1+ Lachman and pivot-shift test results, respectively. The mean Lysholm score was 85 for the BPTB group and 83 for the LAD group. All mean Knee injury and Osteoarthritis Outcome Score (KOOS) subscale values were ≥73. There were no statistically significant differences between groups in any of these outcomes or regarding the Tegner score, radiological classification of OA, or number of ACL reruptures. Signs of radiological OA were detected in all patients, and severe radiological OA (Ahlbäck grade III, IV, or V) was detected in 32% of patients in the BPTB group and 21% of patients in the LAD group (P = .37). There were 12 patients in the BPTB group and 7 in the LAD group who had documented reruptures (P = .40). One patient in the BPTB group and 6 in the LAD group underwent knee arthroplasty (P = .054). Conclusion In the present study, there were no statistically significant differences between groups in any of the outcomes. After 25 years, 19% of patients had reruptures, 27% had severe radiological OA, and 7% underwent knee arthroplasty.
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Affiliation(s)
- Marlene Mauseth Elveos
- Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jon Olav Drogset
- Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.,Orthopaedic Research Center, Trondheim University Hospital, Trondheim, Norway
| | - Lars Engebretsen
- Orthopaedic Center, Oslo University Hospital, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Raymond Brønn
- Aleris Radiology Center Trondheim, Trondheim, Norway
| | - Trond Olav Lundemo
- Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.,Orthopaedic Research Center, Trondheim University Hospital, Trondheim, Norway
| | - Tone Gifstad
- Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.,Orthopaedic Research Center, Trondheim University Hospital, Trondheim, Norway
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Omini L, Martin S, Tambella AM. Innovative, intra-articular, prosthetic technique for cranial cruciate ligament reconstruction in dogs: a cadaveric study. J Vet Med Sci 2018; 80:583-589. [PMID: 29459502 PMCID: PMC5938183 DOI: 10.1292/jvms.16-0483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to describe and assess the feasibility of a new intra-articular approach in the treatment of cranial cruciate ligament deficiency in dogs using an artificial ligament and a new bone-anchor system. Twelve canine cadavers weighting 26 to 45 kg were used in this ex-vivo study. Special tibial and femoral screws, two helicoils, and a high resistance artificial fiber compose the implant. Surgery was performed using the cranio-lateral approach to the stifle joint. Helicoil and tibial screw, connected to the fiber, were inserted in the center of the tibial insertion area of the cranial cruciate ligament. The fiber was passed over-the-top, tensioned, and fixed to the femoral screw, previously inserted with the helicoil in the distal part of the femur. Surgery was completed in all the cases. Occasional problems found during the insertion of the helicoils and screws were resolved with simple procedures. Post-operative clinical assessment showed negative cranial drawer test, negative cranial tibial thrust, and normal range of motion. Radiographic evaluation showed an appropriate positioning of both tibial and femoral implants in all the cases. The results of the first surgical appraisal of this new technique are encouraging, although further studies are necessary to demonstrate the in vivo efficacy of this procedure.
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Affiliation(s)
- Luca Omini
- Clinica Veterinaria Dr. Omini Luca, Via Maestri del Lavoro, 17, 60033, Chiaravalle, Italy
| | - Stefano Martin
- Veterinary Teaching Hospital, School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione, 93/95, 62024 Matelica, Italy
| | - Adolfo Maria Tambella
- Veterinary Teaching Hospital, School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione, 93/95, 62024 Matelica, Italy
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Chen T, Zhang P, Chen J, Hua Y, Chen S. Long-Term Outcomes of Anterior Cruciate Ligament Reconstruction Using Either Synthetics With Remnant Preservation or Hamstring Autografts: A 10-Year Longitudinal Study. Am J Sports Med 2017; 45:2739-2750. [PMID: 28892648 DOI: 10.1177/0363546517721692] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The optimal graft choice of anterior cruciate ligament (ACL) reconstruction remains controversial. PURPOSE To compare the outcomes, especially the long-term cumulative failure rate, of ACL reconstruction using either synthetics with remnant preservation or hamstring autografts (4-strand semitendinosus and gracilis tendons). STUDY DESIGN Cohort study; Level of evidence, 2. METHODS A total of 133 patients who underwent ACL reconstruction (synthetics: n = 43; hamstring autografts: n = 90) between July 2004 and December 2007 were included. Questionnaires (Tegner activity scale, Lysholm knee scale, and International Knee Documentation Committee [IKDC] subjective form) were completed preoperatively and at 6 months, 1 year, 5 years, and 10 years postoperatively. The Knee injury and Osteoarthritis Outcome Score (KOOS) was additionally applied at 10 years' follow-up. The physical examination was based on the 2000 IKDC form. The manual maximum side-to-side difference (KT-1000 arthrometer), single-hop test, thigh muscle atrophy, and joint degeneration (Kellgren and Lawrence classification) were evaluated. The Kaplan-Meier curve and log-rank test (Mantel-Cox, 95% CI) were used to compare graft survivorship. RESULTS Ten years postoperatively, 111 patients were available, with 38 (88.4%) patients (mean age, 27.6 ± 9.3 years; 28 men) with synthetics and 73 (81.1%) patients (mean age, 28.6 ± 8.8 years; 64 men) with hamstring autografts. Among them, 104 patients (synthetics: n = 35 [81.4%]; hamstring autografts: n = 69 [76.7%]) completed subjective evaluations, and 89 patients (synthetics: n = 30 [69.8%]; hamstring autografts: n = 59 [65.6%]) completed objective evaluations. For hamstring autografts and synthetics, the cumulative failure rates were 8.2% and 7.9%, respectively, and the log-rank test demonstrated no significant difference between the 2 Kaplan-Meier survival curves ( P = .910). At 6 months postoperatively, for hamstring autografts and synthetics, the mean Lysholm score was 83.0 ± 7.8 and 88.1 ± 7.5, respectively ( P < .001); the mean IKDC score was 83.8 ± 7.8 and 86.9 ± 4.5, respectively ( P = .036); and the mean Tegner score was 3.7 ± 1.1 and 5.0 ± 1.5, respectively ( P < .001). At 1 year postoperatively, the mean Tegner score was 5.5 ± 1.9 and 6.5 ± 2.0, respectively ( P = .011). No statistically significant difference was observed on other subjective evaluation findings, physical examination findings (overall IKDC grade A: 45.8% of hamstring autografts, 50.0% of synthetics), side-to-side difference (1.5 ± 1.5 mm for synthetics, 2.4 ± 2.1 mm for hamstring autografts), single-hop test findings (grade A: 84.7% of hamstring autografts, 93.3% of synthetics), grade A/B thigh muscle atrophy (88.1% of hamstring autografts, 93.3% of synthetics), ipsilateral radiographic osteoarthritis (55.9% of hamstring autografts, 50.0% of synthetics), and graft survivorship. CONCLUSION In this prospective cohort study, primary ACL reconstruction using either synthetics with remnant preservation or hamstring autografts showed satisfactory outcomes, especially the long-term cumulative failure rate, at 10 years postoperatively. Patient-reported outcomes suggested that symptom relief and restoration of function might occur earlier in those with synthetics.
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Affiliation(s)
- Tianwu Chen
- Department of Sports Medicine and Arthroscopy, Huashan Hospital, Shanghai, China.,Sports Medicine Center, Fudan University, Shanghai, China
| | - Peng Zhang
- Department of Sports Medicine and Arthroscopy, Huashan Hospital, Shanghai, China.,Sports Medicine Center, Fudan University, Shanghai, China
| | - Jiwu Chen
- Department of Sports Medicine and Arthroscopy, Huashan Hospital, Shanghai, China.,Sports Medicine Center, Fudan University, Shanghai, China
| | - Yinghui Hua
- Department of Sports Medicine and Arthroscopy, Huashan Hospital, Shanghai, China.,Sports Medicine Center, Fudan University, Shanghai, China
| | - Shiyi Chen
- Department of Sports Medicine and Arthroscopy, Huashan Hospital, Shanghai, China.,Sports Medicine Center, Fudan University, Shanghai, China
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Reider B. A Long Shot. Am J Sports Med 2017; 45:2703-2705. [PMID: 28981365 DOI: 10.1177/0363546517732761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Differentiation of Human Amniotic Mesenchymal Stem Cells into Human Anterior Cruciate Ligament Fibroblast Cells by In Vitro Coculture. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7360354. [PMID: 29085840 PMCID: PMC5632453 DOI: 10.1155/2017/7360354] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/13/2017] [Accepted: 07/26/2017] [Indexed: 12/14/2022]
Abstract
Anterior cruciate ligament injuries are common in humans, though cellular components of the knee have little regenerative or proliferation potential. This study investigated the differentiation of human amnion-derived mesenchymal stem cells (hAMSCs) into human anterior cruciate ligament fibroblasts (hACLFs) in vitro through induction with bFGF and TGF-β1 with coculture systems. Groups A and B comprised hAMSCs at the 3rd passage cultured with and without bFGF and TGF-β1, respectively; Groups C and D consisted of hAMSCs and hACLFs in monolayer coculture with and without bFGF and TGF-β1, respectively; Groups E and F were composed of hAMSCs and hACLFs in Transwell coculture with and without bFGF and TGF-β1, respectively. Cell morphology and proliferation were recorded. Protein expression and relative mRNA expression were evaluated in each group. Cell proliferation was significantly higher in the induced groups than in the noninduced groups. Protein expression increased over time with the highest expression observed in Group E. mRNA levels were significantly higher in Group E than in other groups. This study is the first to demonstrate the use of the Transwell coculture system for this purpose, and hAMSCs were successfully differentiated into hACLFs. Thus, hAMSCs may be a superior choice for hACLF differentiation via Transwell coculture.
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The potential of using semitendinosus tendon as autograft in rabbit meniscus reconstruction. Sci Rep 2017; 7:7033. [PMID: 28765605 PMCID: PMC5539314 DOI: 10.1038/s41598-017-07166-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 06/23/2017] [Indexed: 01/12/2023] Open
Abstract
Since transplantation of meniscal allograft or artificial menisci is limited by graft sources and a series of adverse events, substitution for meniscus reconstruction still needs to be explored. Natural biomaterials, which can provide a unique 3-D microenvironment, remain a promising alternative for tissue engineering. Among them, autograft is a preferred option for its safety and excellent biocompatibility. In this study, we utilized semitendinosus tendon autograft in meniscus reconstruction to investigate its fibrochondrogenic metaplasticity potential and chondroprotective effect. Tendon-derived stem cells (TDSCs) and synovial-derived mesenchymal stem cells (SMSCs), two most important stem cell sources in our strategy, exhibited excellent viability, distribution, proliferation and fibrochondrogenic differentiation ability in decellularized semitendinosus tendon (DST) scaffolds in vitro. Histologic evaluation of the tendon grafts in vivo suggested endogenous stem cells differentiated into fibrochondrocytes, synthesized proteoglycan, type II collagen and radial type I collagen at 12 weeks and 24 weeks post-surgery. As for elastic modulus and hardness of the grafts, there were no significant differences between native meniscus and regenerated meniscus at 24 weeks. The protection of condylar cartilage from degeneration was significantly better in the reconstruction group comparing to control group. Overall, semitendinosus tendon autograft seems to be a promising substitution in meniscus reconstruction.
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Jia ZY, Zhang C, Cao SQ, Xue CC, Liu TZ, Huang X, Xu WD. Comparison of artificial graft versus autograft in anterior cruciate ligament reconstruction: a meta-analysis. BMC Musculoskelet Disord 2017; 18:309. [PMID: 28724372 PMCID: PMC5517802 DOI: 10.1186/s12891-017-1672-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 07/12/2017] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Critically evaluation and summarization for the outcomes between autografts and artificial grafts using in anterior cruciate ligament (ACL) reconstruction have not been performed currently. The purpose of this study is to compare the clinical outcomes between artificial ligaments and autografts at a short- to mid-term follow-up. METHODS A computerized search of the databases was conducted including Medline, Embase, and the Cochrane library. Only prospective or retrospective comparative studies with a minimum 2-year follow-up and a minimum sample size of 15 for each group were considered for inclusion. Two independent reviewers performed data extraction and methodological quality assessment. A Mantel-Haenszel analysis was used for pooling of results. Sensitivity analysis was performed in order to maintain the stability of results. RESULTS Seven studies were included in this study. The total sample size was 403 (autograft group: 206 patients; synthetic graft group: 197 patients). Four studies were randomized controlled trials. Two studies were retrospective comparative studies and one study was non-randomized prospective comparative study. In terms of instrumented laxity, patient-oriented outcomes and complications, no significant difference was occurred between new artificial ligaments and autografts. But the results of IKDC grades and instrumented laxity were worsen in early artificial ligaments compared to autografts. CONCLUSIONS The outcomes of new generation of artificial ligaments are similar to autografts at a short- to mid-term follow-up. However, the early artificial ligaments are not suggested for ACL reconstruction compared to autografts.
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Affiliation(s)
- Zhen-Yu Jia
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Chen Zhang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Shi-Qi Cao
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Shanghai, China
| | - Chen-Chen Xue
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Tian-Ze Liu
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xuan Huang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Wei-Dong Xu
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China.
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Five-Strand Hamstring Autograft Versus Quadruple Hamstring Autograft With Graft Diameters 8.0 Millimeters or More in Anterior Cruciate Ligament Reconstruction: Clinical Outcomes With a Minimum 2-Year Follow-Up. Arthroscopy 2017; 33:1007-1013. [PMID: 28082062 DOI: 10.1016/j.arthro.2016.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 10/25/2016] [Accepted: 10/25/2016] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare the outcomes of 2 groups of patients undergoing anterior cruciate ligament (ACL) reconstruction: the first with a quadrupled semitendinosus gracilis (ST-G) autograft larger than 8 mm diameter and the second with a 5-strand ST-G autograft larger than 8 mm due to an insufficient diameter graft harvesting. METHODS This was a retrospective study with 70 patients divided into 2 groups. Inclusion criteria included ACL ruptures of less than 3 months, ST-G ACL reconstructions, and final (4-strand or 5-strand) graft size larger than 8 mm. Exclusion criteria included multiligament knee injuries, meniscal or chondral pathology, ACL re-ruptures, inflammatory joint disease, or other procedures in the knee. RESULTS Group A comprised 33 patients with a quadruple ST-G graft, and group B comprised 37 patients with an insufficient graft diameter (<8 mm) in which a 5-strand graft was used. Mean age in group A was 29.7 (range 17-52) years and in group B was 30.6 (range 13-53) years (P = .78). Average follow-up in group A was 32.2 (range 24-48) months and in group B was 30.35 (range 24-48) months (P = .75). Average graft diameter in group A was 8.5 mm (range 8-10) and in group B when the graft was measured as quadruple was 7.2 mm (range 6.5-7.5) and 9.2 mm (range 8-10) when it was converted to 5-strand (P = .00596). Group A had 3 (9%) re-ruptures, and group B had 2 (5.4%) (P = .55). The average postoperative Lysholm score in group A was 93.3 (range 71-100) and in group B was 97.1 (range 80-100) (P = .79). Mean postoperative International Knee Documentation Committee in group A was 91 (range 75.9-100) and in group B was 96.8 (range 82-100) (P = .18). CONCLUSIONS In our study, the 5-strand hamstring autograft in ACL reconstruction was clinically comparable with the quadruple autograft larger than 8 mm. The differences in re-rupture and clinical outcomes were not statistically significant between the 2 groups, suggesting that it is a valid option when we have a graft of insufficient diameter. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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