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Kurtaliaj I, Hoppe ED, Huang Y, Ju D, Sandler JA, Yoon D, Smith LJ, Betancur ST, Effiong L, Gardner T, Tedesco L, Desai S, Birman V, Levine WN, Genin GM, Thomopoulos S. Python tooth-inspired fixation device for enhanced rotator cuff repair. SCIENCE ADVANCES 2024; 10:eadl5270. [PMID: 38941456 PMCID: PMC11212709 DOI: 10.1126/sciadv.adl5270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 05/23/2024] [Indexed: 06/30/2024]
Abstract
Rotator cuff repair surgeries fail frequently, with 20 to 94% of the 600,000 repairs performed annually in the United States resulting in retearing of the rotator cuff. The most common cause of failure is sutures tearing through tendons at grasping points. To address this issue, we drew inspiration from the specialized teeth of snakes of the Pythonoidea superfamily, which grasp soft tissues without tearing. To apply this nondamaging gripping approach to the surgical repair of tendon, we developed and optimized a python tooth-inspired device as an adjunct to current rotator cuff suture repair and found that it nearly doubled repair strength. Integrated simulations, 3D printing, and ex vivo experiments revealed a relationship between tooth shape and grasping mechanics, enabling optimization of the clinically relevant device that substantially enhances rotator cuff repair by distributing stresses over the attachment footprint. This approach suggests an alternative to traditional suturing paradigms and may reduce the risk of tendon retearing after rotator cuff repair.
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Affiliation(s)
- Iden Kurtaliaj
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ethan D. Hoppe
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Yuxuan Huang
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - David Ju
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jacob A. Sandler
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Donghwan Yoon
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Lester J. Smith
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | | | - Linda Effiong
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
- Koru Medical Systems, Mahwah, NJ 07430, USA
| | - Thomas Gardner
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
| | - Liana Tedesco
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
| | - Sohil Desai
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
| | - Victor Birman
- Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, St. Louis, MO 65409, USA
| | - William N. Levine
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
| | - Guy M. Genin
- NSF Science and Technology Center for Engineering Mechanobiology, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Stavros Thomopoulos
- Department of Orthopaedic Surgery, Columbia University, New York, NY 10032, USA
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
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Lebaschi A, Kriscenski DE, Tamburini LM, McCarthy MB, Obopilwe E, Uyeki CL, Cote MP, Rodeo SA, Kumbar SG, Mazzocca AD. Subacromial bursa increases the failure force in a mouse model of supraspinatus detachment and repair. J Shoulder Elbow Surg 2022; 31:e519-e533. [PMID: 35690347 DOI: 10.1016/j.jse.2022.05.009] [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: 11/12/2021] [Revised: 04/28/2022] [Accepted: 05/07/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND It has been shown that subacromial bursa (SAB) harbors connective tissue progenitor cells. The purpose of this study was to evaluate the effects of implantation of SAB-derived cells (SBCs) suspended in a fibrin sealant bead and implantation of SAB tissue at rotator cuff repair site on biomechanical properties of the repair in a mouse (C57Bl/6) model of supraspinatus tendon (ST) detachment and repair. METHODS Part 1: Murine SAB tissue was harvested and cultured. Viability of SBCs suspended in 10 μL of fibrin sealant beads was confirmed in vitro and in vivo. Eighty mice underwent right ST detachment and repair augmented with either fibrin sealant bead (control group) or fibrin sealant bead with 100,000 SBCs (study group) applied at the repair site. Part 2: 120 mice underwent right ST detachment and repair and were randomized equally into 4 groups: (1) a tissue group, which received a piece of freshly harvested SAB tissue; (2) a cell group, which received SBCs suspended in fibrin sealant bead; (3) a fibrin sealant group, which received plain fibrin sealant bead without cells; and (4) a control group, which received nothing at the ST repair site. An equal number of mice in each group were killed at 2 and 4 weeks. Specimens underwent biomechanical testing to evaluate failure force (part 1 and 2) and histologic analysis of the repair site (part 1 only). RESULTS Part 1: The mean failure force in the study group was significantly higher than controls at 2 and 4 weeks (3.25 ± 1.03 N vs. 2.43 ± 0.56 N, P = .01, and 4.08 ± 0.99 N vs. 3.02 ± 0.8 N, P = .004, respectively). Mean cell density of the ST at the repair site was significantly lower in the study group at 2 weeks than in controls (18,292.13 ± 1706.41 vs. 29,501.90 ± 3627.49, P = .001). Study group specimens had lower proteoglycan contents than controls, but this difference was not statistically significant. Part 2: There was no difference in failure force between cell and tissue groups at the 2- and 4-week time points (P = .994 and P = .603, respectively). There was no difference in failure force between fibrin sealant bead and control groups at the 2- and 4-week time points (P = .978 and P = .752, respectively). CONCLUSION This study shows that the application of SBCs and SAB tissue at the rotator cuff repair site increases the strength of repair in a murine model of rotator cuff detachment and repair.
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Affiliation(s)
- Amir Lebaschi
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Danielle E Kriscenski
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Lisa M Tamburini
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Mary Beth McCarthy
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Elifho Obopilwe
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Colin L Uyeki
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Mark P Cote
- Department of Orthopedics and Sports Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Scott A Rodeo
- Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, NY, USA
| | - Sangamesh G Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
| | - Augustus D Mazzocca
- Division of Sports Medicine, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA; Shoulder and Elbow Surgery, Harvard Medical School, Boston, MA, USA.
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Vervaecke AJ, Carbone AD, Abraham A, Bernstein Z, Laudier D, Verborgt O, Galatz LM, Huang AH. Tendon progenitor cells as biological augmentation improve functional gait and reduce scar formation after rotator cuff repair. J Shoulder Elbow Surg 2022; 31:2366-2380. [PMID: 35671924 PMCID: PMC9588545 DOI: 10.1016/j.jse.2022.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND High rates of structural failure are reported after rotator cuff repairs due to inability to recreate the native enthesis during healing. The development of biological augmentation methods that mitigate scar formation and regenerate the enthesis is still an unmet need. Since neonatal enthesis is capable of regeneration after injury, this study tested whether delivery of neonatal tendon progenitor cells (TPCs) into the adult injured environment can enhance functional and structural supraspinatus enthesis and tendon healing. METHODS TPCs were isolated from Ai14 Rosa26-TdTomato mouse Achilles tendons and labeled using adenovirus-Cre. Fifty-two CB57BL/6J mice underwent detachment and acute repair of the supraspinatus tendon and received either a fibrin-only or TPC-fibrin gel. Immunofluorescence analysis was carried out to determine cellularity (DAPI), fibrocartilage (SOX9), macrophages (F4/80), myofibroblasts (α-smooth muscle actin), and scar (laminin). Assays for function (gait and biomechanical testing) and structure (micro-computed tomography imaging, picrosirius red/Alcian Blue staining, type I and III collagen staining) were carried out. RESULTS Analysis of TdTomato cells after injury showed minimal retention of TPCs by day 7 and day 14, with detected cells localized near the bursa and deltoid rather than the enthesis/tendon. However, TPC delivery led to significantly increased %Sox9+ cells in the enthesis at day 7 after injury and decreased laminin intensity across almost all time points compared to fibrin-only treatment. Similarly, TPC-treated mice showed gait recovery by day 14 (paw area and stride length) and day 28 (stance time), while fibrin-treated mice failed to recover gait parameters. Despite improved gait, biomechanical testing showed no differences between groups. Structural analysis by micro-computed tomography suggests that TPC application improves cortical thickness after surgery compared to fibrin. Superior collagen alignment at the neo-enthesis was also observed in the TPC-augmented group at day 28, but no difference was detected in type I and III collagen intensity. CONCLUSION We found that neonatal TPCs improved and restored functional gait by reducing overall scar formation, improving enthesis collagen alignment, and altering bony composition response after supraspinatus tendon repair. TPCs did not appear to integrate into the healing tissue, suggesting improved healing may be due to paracrine effects at early stages. Future work will determine the factors secreted by TPCs to develop translational targets.
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Affiliation(s)
- Alexander J Vervaecke
- Department of Orthopaedics, The Mount Sinai Hospital, New York, NY, USA; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium; Orthopaedic Center Antwerp, AZ Monica, Antwerp, Belgium
| | - Andrew D Carbone
- Department of Orthopaedics, The Mount Sinai Hospital, New York, NY, USA
| | - Adam Abraham
- Department of Orthopaedics, University of Michigan, Ann Arbor, Mich, USA
| | - Zachary Bernstein
- Department of Orthopaedics, The Mount Sinai Hospital, New York, NY, USA
| | - Damien Laudier
- Department of Orthopaedics, The Mount Sinai Hospital, New York, NY, USA
| | - Olivier Verborgt
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium; Orthopaedic Center Antwerp, AZ Monica, Antwerp, Belgium
| | - Leesa M Galatz
- Department of Orthopaedics, The Mount Sinai Hospital, New York, NY, USA.
| | - Alice H Huang
- Department of Orthopedic Surgery, Columbia University, New York, NY, USA.
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Otto A, LeVasseur MR, Baldino JB, Muench LN, Bellas N, Uyeki C, Trudeau MT, Mancini MR, McCarthy MBR, Mazzocca AD. Clinical Outcomes After Arthroscopic Rotator Cuff Repair With a Fibrin Scaffold Containing Growth Factors and Autologous Progenitor Cells Derived from cBMA. Arthrosc Sports Med Rehabil 2022; 4:e1629-e1637. [PMID: 36312725 PMCID: PMC9596864 DOI: 10.1016/j.asmr.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose To report the clinical outcomes after biologically augmented rotator cuff repair (RCR) with a fibrin scaffold derived from autologous whole blood and supplemented with concentrated bone marrow aspirate (cBMA) harvested at the proximal humerus. Methods Patients who underwent arthroscopic RCR with biologic augmentation using a fibrin clot scaffold (“Mega- Clot”) containing progenitor cells and growth factors from proximal humerus BMA and autologous whole blood between April 2015 and January 2018 were prospectively followed. Only high-risk patients in primary and revision cases that possessed relevant comorbidities or physically demanding occupation were included. Minimum follow-up for inclusion was 1 year. The visual analog score for pain (VAS), American Shoulder and Elbow Surgeons (ASES), Simple Shoulder Test (SST), Single Assessment Numerical Evaluation (SANE), and Constant-Murley scores were collected preoperatively and at final follow-up. In vitro analyses of the cBMA and fibrin clot using nucleated cell count, colony forming units, and live/dead assays were used to quantify the substrates. Results Thirteen patients (56.9 ± 7.7 years) were included. The mean follow-up was 26.9 ± 17.7 months (n = 13). There were significant improvements in all outcome scores from the preoperative to the postoperative state: VAS (5.6 ± 2.5 to 3.1 ± 3.2; P < .001), ASES (42.0 ± 17.1 to 65.5 ± 30.6; P < .001), SST (3.2 ± 2.8 to 6.5 ± 4.7; P = .002), SANE (11.5 ± 15.6 to 50.3 ± 36.5; P < .001), and Constant-Murley (38.9 ± 17.5 to 58.1 ± 26.3; P < .001). Six patients (46%) had retears on postoperative MRI, despite all having improvements in pain and function except one. All failures were chronic rotator cuff tears, and all were revision cases except one (1.6 ± 0.5 previous RCRs). The representative sample of harvested cBMA showed an average of 28.5 ± 9.1 × 106 nucleated cells per mL. Conclusions Arthroscopic rotator cuff repairs that are biologically augmented with a fibrin scaffold containing growth factors and autologous progenitor cells derived from autologous whole blood and humeral cBMA can improve clinical outcomes in primary, as well as revision cases in high-risk patients. However, the incidence of retears remains a concern in this population, demanding further improvements in biologic augmentation. Level of Evidence IV, therapeutic case series.
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Affiliation(s)
- Alexander Otto
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
- Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Augsburg, Germany
| | - Matthew R. LeVasseur
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Joshua B. Baldino
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Lukas N. Muench
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Nicholas Bellas
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Colin Uyeki
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Maxwell T. Trudeau
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Michael R. Mancini
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Mary Beth R. McCarthy
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
- Address correspondence to Augustus D. Mazzocca, M.D., M.S., Division of Sports Medicine Mass General Hospital, Department of Orthopaedic Surgery Massachusetts General Hospital & Harvard Medical School, Boston, MA, U.S.A.
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5
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Kriscenski DE, Lebaschi A, Tamburini LM, McCarthy MBR, Cote MP, Kumbar SG, Mazzocca AD. Characterization of murine subacromial bursal-derived cells. Connect Tissue Res 2022; 63:287-297. [PMID: 34042553 DOI: 10.1080/03008207.2021.1917556] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE/AIM The purpose of this study is to identify a cell population within the murine subcromial bursal-derived cells with characteristics compatible to an accepted mesenchymal stem cell description given by the International Society for Cellular Therapy (ISCT). MATERIALS AND METHODS Murine subacromial bursa was harvested using microsurgical technique. Subacromial bursal-derived cells were classified through colony-forming units, microscopic morphology, fluorescent-activated cell sorting, and differentiation into chondrogenic, adipogenic, and osteogenic lineages. RESULTS Subacromial bursal samples exhibited cell growth out of the tissue for an average of 115 ± 29 colony-forming units per 1 mL of complete media. Subacromial bursal-derived cells exhibited a long, spindle-shaped, fibroblast-like morphology. Subacromial bursal-derived cells positively expressed mesenchymal stem cell markers CD73, CD90, and CD105, and negatively expressed mesenchymal stem cell markers CD31 and CD45. Subacromial bursal-derived cells, examined by Image J analysis and quantitative gene expression, were found to differentiate into chondrogenic, adipogenic, and osteogenic lineages. CONCLUSIONS This study demonstrated the feasibility of harvesting murine subacromial bursal tissue and identified a cell population within the subacromial bursa with characteristics compatible to an accepted mesenchymal stem cell description. The results of this study suggest that the mouse subacromial bursal-derived cell population harbors mesenchymal stem cells. Murine subacromial bursal tissue is a potential source for obtaining cells with mesenchymal stem cell characteristics for future utilization in orthopedic research to look into treatment of rotator cuff pathology.
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Affiliation(s)
| | - Amir Lebaschi
- Department of Orthopaedics and Sports Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Lisa M Tamburini
- School of Medicine, University of Connecticut, Farmington, Connecticut, USA
| | - Mary Beth R McCarthy
- Department of Orthopaedics and Sports Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Mark P Cote
- Department of Orthopaedics and Sports Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Sangamesh G Kumbar
- Department of Orthopaedics and Sports Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA.,Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut, USA
| | - Augustus D Mazzocca
- Department of Orthopaedics and Sports Medicine, University of Connecticut Health Center, Farmington, Connecticut, USA
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Yang J, Kang Y, Zhao W, Jiang J, Jiang Y, Zhao B, Jiao M, Yuan B, Zhao J, Ma B. Evaluation of patches for rotator cuff repair: A systematic review and meta-analysis based on animal studies. Bioact Mater 2022; 10:474-491. [PMID: 34901561 PMCID: PMC8633530 DOI: 10.1016/j.bioactmat.2021.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 02/06/2023] Open
Abstract
Based on the published animal studies, we systematically evaluated the outcomes of various materials for rotator cuff repair in animal models and the potentials of their clinical translation. 74 animal studies were finally included, of which naturally derived biomaterials were applied the most widely (50.0%), rats were the most commonly used animal model (47.0%), and autologous tissue demonstrated the best outcomes in all animal models. The biomechanical properties of naturally derived biomaterials (maximum failure load: WMD 18.68 [95%CI 7.71-29.66]; P = 0.001, and stiffness: WMD 1.30 [95%CI 0.01-2.60]; P = 0.048) was statistically significant in the rabbit model. The rabbit model showed better outcomes even though the injury was severer compared with the rat model.
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Affiliation(s)
- Jinwei Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medicine Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, 730050, China
| | - Yuhao Kang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Wanlu Zhao
- College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Jia Jiang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yanbiao Jiang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Bing Zhao
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Mingyue Jiao
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Bo Yuan
- College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Bin Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
- Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, 730000, China
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Cho WS, Chung SG, Kim W, Jo CH, Lee SU, Lee SY. Mesenchymal Stem Cells Use in the Treatment of Tendon Disorders: A Systematic Review and Meta-Analysis of Prospective Clinical Studies. Ann Rehabil Med 2021; 45:274-283. [PMID: 34496470 PMCID: PMC8435464 DOI: 10.5535/arm.21078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022] Open
Abstract
Objective To evaluate the efficacy and safety of mesenchymal stem cells (MSCs) therapy in patients with tendon disorders enrolled in prospective clinical studies. Methods We systematically searched prospective clinical studies that investigated the effects of MSC administration on human tendon disorders with at least a 6-month follow-up period in the PubMed-MEDLINE, EMBASE, and Cochrane Library databases. The primary outcome of interest was the change in pain on motion related to tendon disorders. Meta-regression analyses were performed to assess the relationship between MSC dose and pooled effect sizes in each cell dose. Results Four prospective clinical trials that investigated the effect of MSCs on tendon disorders were retrieved. MSCs showed a significant pooled effect size (overall Hedges’ g pooled standardized mean difference=1.868; 95% confidence interval, 1.274–2.462; p<0.001). The treatment with MSCs improved all the aspects analyzed, namely pain, functional scores, radiological parameters (magnetic resonance image or ultrasonography), and arthroscopic findings. In the meta-regression analysis, a significant cell dose-dependent response in pain relief (Q=9.06, p=0.029) was observed. Conclusion Our meta-analysis revealed that MSC therapy may improve pain, function, radiological, and arthroscopic parameters in patients with tendon disorders. A strong need for large-scale randomized controlled trials has emerged to confirm the long-term functional improvement and adverse effects of MSC therapies in tendon disorders.
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Affiliation(s)
- Woo Sup Cho
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Sun Gun Chung
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Kim
- Department of Orthopedic Surgery, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Chris H Jo
- Department of Orthopedic Surgery, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Shi-Uk Lee
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Sang Yoon Lee
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
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8
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Morikawa D, Hawthorne BC, McCarthy MBR, Bellas N, Johnson JD, Trudeau MT, Murphy KV, Mancini MR, LeVasseur MR, Cote MP, Mazzocca AD. Analysis of Patient Factors Affecting In Vitro Characteristics of Subacromial Bursal Connective Tissue Progenitor Cells during Rotator Cuff Repair. J Clin Med 2021; 10:jcm10174006. [PMID: 34501453 PMCID: PMC8432549 DOI: 10.3390/jcm10174006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 02/04/2023] Open
Abstract
Unsatisfactory failure rates following rotator cuff (RC) repair have led orthopaedic surgeons to explore biological augmentation of the healing enthesis. The subacromial bursa (SB) contains abundant connective tissue progenitor cells (CTPs) that may aid in this process. The purpose of the study was to investigate the influence of patient demographics and tear characteristics on the number of colony-forming units (CFUs) and nucleated cell count (NCC) of SB-derived CTPs. In this study, we harvested SB tissue over the supraspinatus tendon and muscle in 19 patients during arthroscopic RC repair. NCC of each sample was analyzed on the day of the procedure. After 14 days, CFUs were evaluated under a microscope. Spearman’s rank correlation coefficient was then used to determine the relationship between CFUs or NCC and patient demographics or tear characteristics. The study found no significant correlation between patient demographics and the number of CFUs or NCC of CTPs derived from the SB (p > 0.05). The study did significantly observe that increased tear size was negatively correlated with the number of CFUs (p < 0.05). These results indicated that increased tear size, but not patient demographics, may influence the viability of CTPs and should be considered when augmenting RCrepairs with SB.
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Affiliation(s)
- Daichi Morikawa
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
- Department of Orthopaedic Surgery, Juntendo University Urayasu Hospital, Urayasu 279-0021, Japan
- Correspondence: (D.M.); (A.D.M.)
| | - Benjamin C. Hawthorne
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Mary Beth R. McCarthy
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Nicholas Bellas
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Jeremiah D. Johnson
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Maxwell T. Trudeau
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Kyle V. Murphy
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Michael R. Mancini
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Matthew R. LeVasseur
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Mark P. Cote
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT 06032, USA; (B.C.H.); (M.B.R.M.); (N.B.); (J.D.J.); (M.T.T.); (K.V.M.); (M.R.M.); (M.R.L.); (M.P.C.)
- Correspondence: (D.M.); (A.D.M.)
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9
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Muench LN, Tamburini L, Kriscenski D, Landry A, Berthold DP, Kia C, Cote MP, McCarthy MB, Mazzocca AD. The Effect of Insulin and Insulin-like Growth Factor 1 (IGF-1) on Cellular Proliferation and Migration of Human Subacromial Bursa Tissue. Arthrosc Sports Med Rehabil 2021; 3:e781-e789. [PMID: 34195645 PMCID: PMC8220627 DOI: 10.1016/j.asmr.2021.01.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 01/25/2021] [Indexed: 11/08/2022] Open
Abstract
Purpose To evaluate the effect of a one-time dose of insulin or insulin-like growth factor 1 (IGF-1) on cellular proliferation and migration of subacromial bursa tissue (SBT) over time. Methods SBT was harvested from over the rotator cuff tendon in 4 consecutive patients undergoing primary arthroscopic rotator cuff repair. SBT was cultured for 3 weeks in complete media until reaching confluence. The culture dishes were stored in a humidified, low oxygen tension (5% CO2) incubator at 37°C. SBT of each patient underwent treatment with a one-time dose of insulin or IGF-1, whereas nontreated SBT served as a negative control. Cellular proliferation and migration were evaluated after 24, 48, 72, and 96 hours of incubation. SBT-derived cells migrated in the detection field were visualized using fluorescent microscopy. Results Cellular proliferation at 24, 48, 72, and 96 hours was 1.40 ± 0.27, 1.00 ± 0.20, 1.47 ± 0.31, and 1.68 ± 0.28 for IGF-1; 1.44 ± 0.24, 1.15 ± 0.27, 1.60 ± 0.36, and 1.61 ± 0.32 for insulin; and 1.51 ± 0.35, 1.29 ± 0.33, 1.53 ± 0.35, and 1.57 ± 0.38 for nontreated SBT. Untreated SBT demonstrated a significantly greater proliferation when compared with IGF-1 and insulin within the first 48 hours, although this effect was found to subside by 96 hours. Cellular migration at 24, 48, 72, and 96 hours was 575.7 ± 45.0, 641.6 ± 77.7, 728.3 ± 122.9, and 752.3 ± 114.5 for IGF-1; 528.4 ± 31.3, 592.5 ± 69.8, 664.2 ± 115.2, and 695.6 ± 148.2 for insulin; and 524.4 ± 41.9, 564.4 ± 49.8, 653.2 ± 81.5, and 685.7 ± 115.5 for nontreated SBT. Insulin showed no difference in migration at each timepoint compared to nontreated SBT (P > .05, respectively). Conclusions Insulin and IGF-1 initially inhibit cellular proliferation of human SBT, although this effect was found to subside by 96 hours. Further, neither insulin nor IGF-1 changed the slope of cellular migration over time. However, each treatment group demonstrated a significant increase in cellular proliferation and migration. Clinical Relevance In the setting of biologic augmentation of rotator cuff repair, the compatibility and synergistic effect of insulin on human SBT is highly limited.
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Affiliation(s)
- Lukas N Muench
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A.,Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Lisa Tamburini
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Danielle Kriscenski
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Arthur Landry
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Daniel P Berthold
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A.,Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Cameron Kia
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Mark P Cote
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Mary Beth McCarthy
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
| | - Augustus D Mazzocca
- Department of Orthopaedic Surgery, UConn Health Center, Farmington Connecticut, U.S.A
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10
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Regeneration of the rotator cuff tendon-to-bone interface using umbilical cord-derived mesenchymal stem cells and gradient extracellular matrix scaffolds from adipose tissue in a rat model. Acta Biomater 2020; 114:104-116. [PMID: 32682057 DOI: 10.1016/j.actbio.2020.07.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 12/17/2022]
Abstract
Regeneration of the gradient structure of the tendon-to-bone interface (TBI) is a crucial goal after rotator cuff repair. The purpose of this study was to investigate the efficacy of a biomimetic hydroxyapatite-gradient scaffold (HA-G scaffold) isolated from adipose tissue (AD) with umbilical cord derived mesenchymal stem cells (UC MSCs) on the regeneration of the structure of the TBI by analyzing the histological and biomechanical changes in a rat repair model. As a result, the HA-G scaffold had progressively increased numbers of hydroxyapatite (HA) particles from the tendon to the bone phase. After seeding UC MSCs to the scaffold, specific matrices, such as collagen, glycoaminoglycan, and calcium, were synthesized with respect to the HA density. In a rat repair model, compared to the repair group, the UC MSCs seeded HA-G scaffold group had improved collagen organization and cartilage formation by 52% at 8 weeks and 262.96% at 4 weeks respectively. Moreover, ultimate failure load also increased by 30.71% at 4 weeks in the UC MSCs seeded HA-G scaffold group compared to the repair group. Especially, the improved values were comparable to values in normal tissue. This study demonstrated that HA-G scaffold isolated from AD induced UC MSCs to form tendon, cartilage and bone matrices similar to the TBI structure according to the HA density. Furthermore, UC MSC-seeded HA-G scaffold regenerated the TBI of the rotator cuff in a rat repair model in terms of histological and biomechanical properties similar to the normal TBI. Statement of Significance We found specific extracellular matrix (ECM) formation in the biomimetic-hydroxyapatite-gradient-scaffold (HA-G-scaffold) in vitro as well as improved histological and biomechanical results of repaired rotator cuff after the scaffold implantation in a rat model. This study has four strengths; An ECM scaffold derived from human adipose tissue; only one-layer used for a gradient scaffold not a multilayer used to mimic the unique structure of the gradient tendon-to-bone-interface (TBI) of the rotator cuff; UC-MSCs as a new cell source for TBI regeneration; and the UC-MSCs synthesized specific matrices with respect to the HA density without any other stimuli. This study suggested that the UC-MSC seeded HA-G-scaffold could be used as a promising strategy for the regeneration of rotator cuff tears.
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11
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Otto A, Muench LN, Kia C, Baldino JB, Mehl J, Dyrna F, Voss A, McCarthy MB, Nazal MR, Martin SD, Mazzocca AD. Proximal Humerus and Ilium Are Reliable Sources of Bone Marrow Aspirates for Biologic Augmentation During Arthroscopic Surgery. Arthroscopy 2020; 36:2403-2411. [PMID: 32554079 DOI: 10.1016/j.arthro.2020.06.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 05/30/2020] [Accepted: 06/04/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the number of colony-forming units (CFUs) derived from concentrated bone marrow aspirates (BMAs) that were processed following arthroscopic harvest from either the proximal humerus or the body of the ilium during biologic augmentation of the rotator cuff and acetabular labral repairs. METHODS Between November 2014 and January 2019, BMA was harvested from the proximal humerus (n = 89) and the body of the ilium (n = 30) during arthroscopic surgery. Following concentration of the aspirate, a 0.5-mL aliquot was further processed and the number of nucleated cells (NC) was counted. Each aliquot was cultured until CFUs were quantifiable. Fluorescence-activated cell sorting analysis and quantitative polymerase chain reaction was performed to confirm presence of mesenchymal stem cells. BMA harvest sites were prospectively assessed and evaluated for differences in age, sex, volume of aspirated BM, and CFUs per milliliter of BMA. RESULTS The prevalence (38.57 ± 27.92ilium vs. 56.00 ± 25.60humerus CFUs per 106 nucleated cells) and concentration (979.17 ± 740.31ilium vs. 1,516.62 ± 763.63humerus CFUs per 1.0 mL BMA) of CFUs was significantly higher (P < .001, respectively) for BMA harvested from the proximal humerus. Additionally, the estimated total number of cells was significantly higher (P = .013) in BMA from the proximal humerus (97,529.00 ± 91,064.01ilium vs. 130,552.4 ± 85,294.2humerus). There was no significant difference between groups regarding BMA volume (91.67 ± 18.77ilium vs. 85.63 ± 35.61humerus mL; P = .286) and NC count (24.01 ± 5.13ilium vs. 27.07 ± 6.28humerus × 106 per mL BMA; P = .061). The mean age was significantly lower (P < .001) in patients with BMA being harvested from the ilium (30.18 ± 7.63ilium vs. 56.82 ± 7.08humerus years). Patient sex and age had no significant influence on cellular measures within groups (P > .05, respectively). CONCLUSION Both proximal humerus and the body of the ilium can be considered reliable sources of bone marrow aspirate for the use in biologic augmentation during their respective arthroscopic surgery. Samples of bone marrow aspirate from the proximal humerus yielded a significantly higher amount of CFUs when compared with samples of BMA obtained from the ilium. LEVEL OF EVIDENCE Level II- prospective laboratorial study.
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Affiliation(s)
- Alexander Otto
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A.; Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Augsburg, Germany.
| | - Lukas N Muench
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A.; Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Cameron Kia
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Joshua B Baldino
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Julian Mehl
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Felix Dyrna
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Münster, Germany
| | - Andreas Voss
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Department of Trauma Surgery, University Medical Center Regensburg, Regensburg, Germany; Sporthopaedicum, Straubing-Regensburg, Germany
| | - Mary Beth McCarthy
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A.; Sports Medicine, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, U.S.A
| | - Mark R Nazal
- Sports Medicine, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, U.S.A
| | - Scott D Martin
- Sports Medicine, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, U.S.A
| | - Augustus D Mazzocca
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, U.S.A
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Abstract
Hip abductor tendon tear is a difficult problem to manage. The hip abductor mechanism is made up of the gluteus medius and minimus muscles, both of which contribute to stabilising the pelvis through the gait cycle. Tears of these tendons are likely due to iatrogenic injury during arthroplasty and chronic degenerative tendinopathy. Ultrasound and magnetic resonance imaging have provided limited clues regarding the pattern of disease and further work is required to clarify both the macro and microscopic pattern of disease. While surgery has been attempted over the last 2 decades, the outcomes are variable and the lack of high-quality studies have limited the uptake of surgical repair. Hip abductor tendon tears share many features with rotator cuff tears, hence, innovations in surgical techniques, materials and biologics may apply to both pathologies.
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Affiliation(s)
- Mark F Zhu
- The University of Auckland, Auckland, New Zealand.,Auckland City Hospital, Auckland, New Zealand
| | | | | | - Simon W Young
- The University of Auckland, Auckland, New Zealand.,North Shore Hospital, Auckland, New Zealand
| | - Jacob T Munro
- The University of Auckland, Auckland, New Zealand.,Auckland City Hospital, Auckland, New Zealand
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13
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Connective Tissue Progenitor Analysis of Bone Marrow Aspirate Concentrate Harvested From the Body of the Ilium During Arthroscopic Acetabular Labral Repair. Arthroscopy 2020; 36:1311-1320. [PMID: 31958539 DOI: 10.1016/j.arthro.2019.11.125] [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] [Received: 08/15/2019] [Revised: 11/24/2019] [Accepted: 11/24/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the number and concentration of progenitors of the bone marrow aspirate (BMA) harvest from the body of the ilium in comparison with other established aspiration sites. METHODS The inclusion criteria consisted of primary hip arthroscopy for acetabular labral tear. BMA was performed by placing an aspiration needle into the body of ilium just proximal to the sourcil in 33 patients. The BMA was centrifuged and processed in the operating room, resulting in approximately 3 to 5 mL of bone marrow aspirate concentrate (BMAC). Samples of both BMA and BMAC sample were analyzed. RESULTS The cohort of 30 patients had a mean number of nucleated cells of 24.0 million nucleated cells/cc of BMA. The BMAC samples had a mean connective tissue progenitor (CTP) cell concentration of 879.3 stem cells/cc of BMAC, a mean CTP prevalence of 34.1 stem cells/million nucleated cells, and a mean number of days to form colonies of 2.97 days. All 4 metrics of CTP harvest did not vary significantly with age, body mass index, sex, or laterality. The nucleated cell count was significantly associated with both CTP prevalence, r2 = 0.287 (P = .002), and CTP concentration, r2 = 0.388 (P < .001). CONCLUSIONS BMAC harvested from the body of the ilium during concurrent hip arthroscopy is a technically and biologically feasible option. Furthermore, the harvest site was found to have a CTP concentration that is similar or exceeds other published harvest sites. Finally, BMAC processing and application to areas of articular cartilage wear was performed efficiently and safely with no increase in morbidity or complications. CLINICAL RELEVANCE The body of the ilium is a reliable and rich source of CTP cells. This study may assist orthopaedic surgeons interested in performing biologic augmentation during hip surgery in determining a harvest site.
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14
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Muench LN, Kia C, Otto A, Mehl J, Baldino JB, Cote MP, McCarthy MB, Beitzel K, Mazzocca AD. The effect of a single consecutive volume aspiration on concentrated bone marrow from the proximal humerus for clinical application. BMC Musculoskelet Disord 2019; 20:543. [PMID: 31727036 PMCID: PMC6857344 DOI: 10.1186/s12891-019-2924-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 10/31/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Low aspiration volumes have been recommended to allow for higher concentrations of progenitor cells during bone marrow harvesting. However, these guidelines then require multiple aspiration attempts in order to maximize cellular yield. The purpose of this study was to investigate the effect of a single, high-volume aspiration with four consecutive aliquots on the number of nucleated cells (NCs) and colony-forming units (CFUs) in concentrated bone marrow aspirate (cBMA) taken from the proximal humerus. METHODS cBMA was taken from the proximal humerus of patients undergoing arthroscopic rotator cuff surgery. Four 12-mL double syringes were used consecutively from a single trocar to obtain four 10 cc aliquots. Each then underwent centrifugation to create a fractionated layer rich in nucleated cells. Following cellular separation, NCs were counted and CFUs were evaluated after incubation of 7-10 days. Cellular comparisons between each aliquot were performed along with their interaction with patient age and sex. RESULTS Twenty-nine patients (55.9 ± 4.6 years) were included in this study. The number of NCs and CFUs showed significant differences between the four aliquots of aspirate, with the first 10 cc aliquot providing the highest amount (p < 0.001, respectively). No significant differences were found between the sum of the three sequential aliquots compared to the initial 10 cc sample. There were no significant differences between male and female patients (p > 0.05). Increasing age resulted in no significant decrease in the number of NCs and CFUs across the four consecutive aliquots (p > 0.05). CONCLUSION In conclusion, while the initial aliquot provided the greatest number of nucleated cells and cultured CFUs, the addition of each sequential volume aspirate yielded similar amounts in total. This demonstrates the potential effectiveness of obtaining of higher volume aspirates from the proximal humerus during rotator cuff repair.
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Affiliation(s)
- Lukas N Muench
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany.
| | - Cameron Kia
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Alexander Otto
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Julian Mehl
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany.,Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Joshua B Baldino
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Mark P Cote
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Mary Beth McCarthy
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Knut Beitzel
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany.,Department of Shoulder Surgery, ATOS Clinic, Cologne, Germany
| | - Augustus D Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
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15
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Yang S, Shi X, Li X, Wang J, Wang Y, Luo Y. Oriented collagen fiber membranes formed through counter-rotating extrusion and their application in tendon regeneration. Biomaterials 2019; 207:61-75. [DOI: 10.1016/j.biomaterials.2019.03.041] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/24/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
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Rothrauff BB, Smith CA, Ferrer GA, Novaretti JV, Pauyo T, Chao T, Hirsch D, Beaudry MF, Herbst E, Tuan RS, Debski RE, Musahl V. The effect of adipose-derived stem cells on enthesis healing after repair of acute and chronic massive rotator cuff tears in rats. J Shoulder Elbow Surg 2019; 28:654-664. [PMID: 30527883 DOI: 10.1016/j.jse.2018.08.044] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/26/2018] [Accepted: 08/29/2018] [Indexed: 02/01/2023]
Abstract
BACKGROUND Chronic massive rotator cuff tears heal poorly and often retear. This study investigated the effect of adipose-derived stem cells (ADSCs) and transforming growth factor-β3 (TGF-β3) delivered in 1 of 2 hydrogels (fibrin or gelatin methacrylate [GelMA]) on enthesis healing after repair of acute or chronic massive rotator cuff tears in rats. METHODS Adult male Lewis rats underwent bilateral transection of the supraspinatus and infraspinatus tendons with intramuscular injection of botulinum toxin A (n = 48 rats). After 8 weeks, animals received 1 of 8 interventions (n = 12 shoulders/group): (1) no repair, (2) repair only, or repair augmented with (3) fibrin, (4) GelMA, (5) fibrin + ADSCs, (6) GelMA + ADSCs, (7) fibrin + ADSCs + TGF-β3, or (8) GelMA + ADSCs + TGF-β3. An equal number of animals underwent acute tendon transection and immediate application of 1 of 8 interventions. Enthesis healing was evaluated 4 weeks after the repair by microcomputed tomography, histology, and mechanical testing. RESULTS Increased bone loss and reduced structural properties were seen in chronic compared with acute tears. Bone mineral density of the proximal humerus was higher in repairs of chronic tears augmented with fibrin + ADSCs and GelMA + ADSCs than in unrepaired chronic tears. Similar improvement was not seen in acute tears. No intervention enhanced histologic appearance or structural properties in acute or chronic tears. CONCLUSIONS Surgical repair augmented with ADSCs may provide more benefit in chronic tears compared with acute tears, although there was no added benefit to supplementing ADSCs with TGF-β3.
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Affiliation(s)
- Benjamin B Rothrauff
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Catherine A Smith
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Gerald A Ferrer
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - João V Novaretti
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Thierry Pauyo
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tom Chao
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - David Hirsch
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mason F Beaudry
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Elmar Herbst
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rocky S Tuan
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Richard E Debski
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Volker Musahl
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
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