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Marina Magnani, Giovanni Trisolino, Stefano Stilli
INTRODUCTION: Idiopathic posttraumatic nonunion is a rare condition in children; the treatment of this complication is still controversial in this peculiar population. CASE REPORT: We report a case of a subcapital type II femoral neck fracture, in a 12-year-old boy, which was initially treated by internal fixation and subsequently went on to a nonunion at the femoral neck, in absence of infection or other disease.1 year after index surgery we performed surgical debridement and refixation with plate and bone allograft, added with autologous bone marrow aspiration concentrate (BMAC) and platelet-rich fibrin (PRF)...
October 15, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
James Holton, Mohamed Imam, Jonathan Ward, Martyn Snow
There has been great interest in bone marrow aspirate concentrate (BMAC) as a cost effective method in delivering mesenchymal stem cells (MSCs) to aid in the repair and regeneration of cartilage defects. Alongside MSCs, BMAC contains a range of growth factors and cytokines to support cell growth following injury. However, there is paucity of information relating to the basic science underlying BMAC and its exact biological role in supporting the growth and regeneration of chondrocytes. The focus of this review is the basic science underlying BMAC in relation to chondral damage and regeneration...
September 19, 2016: Orthopedic Reviews
Shane A Shapiro, Shari E Kazmerchak, Michael G Heckman, Abba C Zubair, Mary I O'Connor
BACKGROUND: Bone marrow aspirate concentrate (BMAC) is increasingly used as a regenerative therapy for musculoskeletal pathological conditions despite limited evidence-based support. HYPOTHESIS: BMAC will prove feasible, safe, and efficacious for the treatment of pain due to mild to moderate degenerative joint disease of the knee. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2. METHODS: In this prospective, single-blind, placebo-controlled trial, 25 patients with bilateral knee pain from bilateral osteoarthritis were randomized to receive BMAC into one knee and saline placebo into the other...
August 26, 2016: American Journal of Sports Medicine
Emily T Camilleri, Michael P Gustafson, Amel Dudakovic, Scott M Riester, Catalina Galeano Garces, Christopher R Paradise, Hideki Takai, Marcel Karperien, Simon Cool, Hee-Jeong Im Sampen, A Noelle Larson, Wenchun Qu, Jay Smith, Allan B Dietz, Andre J van Wijnen
BACKGROUND: Clinical translation of mesenchymal stromal cells (MSCs) necessitates basic characterization of the cell product since variability in biological source and processing of MSCs may impact therapeutic outcomes. Although expression of classical cell surface markers (e.g., CD90, CD73, CD105, and CD44) is used to define MSCs, identification of functionally relevant cell surface markers would provide more robust release criteria and options for quality control. In addition, cell surface expression may distinguish between MSCs from different sources, including bone marrow-derived MSCs and clinical-grade adipose-derived MSCs (AMSCs) grown in human platelet lysate (hPL)...
2016: Stem Cell Research & Therapy
Sung Woo Huh, Asode Ananthram Shetty, Saif Ahmed, Dong Hwan Lee, Seok Jung Kim
Degenerative and traumatic articular cartilage defects are common, difficult to treat, and progressive lesions that cause significant morbidity in the general population. There have been multiple approaches to treat such lesions, including arthroscopic debridement, microfracture, multiple drilling, osteochondral transplantation and autologous chondrocyte implantation (ACI) that are currently being used in clinical practice. Autologous bone-marrow mesenchymal cell induced chondrogenesis (MCIC) is a single-staged arthroscopic procedure...
July 2016: Journal of Clinical Orthopaedics and Trauma
Alberto Gobbi, Graeme P Whyte
BACKGROUND: Articular cartilage injury is frequently encountered, yet treatment options capable of providing durable cartilage repair are limited. PURPOSE: To investigate the medium-term clinical outcomes of cartilage repair using a 1-stage technique of a hyaluronic acid-based scaffold with activated bone marrow aspirate concentrate (HA-BMAC) and compare results with those of microfracture. A secondary aim of this study was to identify specific patient demographic factors and cartilage lesion characteristics that are associated with superior outcomes...
July 29, 2016: American Journal of Sports Medicine
Gherardo Pagliazzi, Matteo Baldassarri, Luca Perazzo, Francesca Vannini, Francesco Castagnini, Roberto Buda
BACKGROUND: Juvenile osteochondritis dissecans of the talus (JOCDT) is a focal idiopathic lesion primarily of the subchondral bone leading to subsequent cartilaginous damage. The majority of the papers dealing with JOCDT reported heterogeneous case studies of patients treated with different cartilage repair techniques. The purpose of this paper is to retrospectively review both clinical and radiologic results among 7 patients affected by JOCDT treated with arthroscopic bone marrow aspirate concentrate (BMAC) transplantation with the 1-step technique...
July 2, 2016: Journal of Pediatric Orthopedics
James Holton, Mohamed A Imam, Martin Snow
The ability of mesenchymal stem cells (MSCs) to transdifferentiate into a desired cell lineage has captured the imagination of scientists and clinicians alike. The limited ability for chondrocytes to regenerate in chondral injuries has raised the concept of using MSCs to help regenerate and repair damaged tissue. The expansion of cells in a laboratory setting to be delivered back to the patient is too costly for clinical use in the present tough economic climate. This process is slow with due to the complexity of trying to imitate the natural environment and biological stimulation of chondral cell replication and proliferation...
2016: Frontiers in Surgery
Natasha Holden, James Kelly, Mary Welford, Peter J Taylor
OBJECTIVES: It has been suggested that savouring positive memories can generate positive emotions. Increasing positive emotion can have a range of benefits including reducing attention to and experiences of threat. This study investigated individuals' emotional reactions to a guided mental imagery task focussing on positive social memory called the 'social Broad Minded Affective Coping (BMAC)' technique. The study examined possible predictors of individuals' responses to this intervention...
April 20, 2016: Psychology and Psychotherapy
André Antonio Pelegrine, Marcelo Lucchesi Teixeira, Marcelo Sperandio, Thiago Sousa Almada, Karl Erik Kahnberg, Paulo José Pasquali, Antonio Carlos Aloise
OBJECTIVE: To evaluate bony reconstruction of the atrophic anterior maxilla using particulate grafts with or without autologous bone marrow aspirate concentrate (BMAC). MATERIALS AND METHODS: Eight patients with atrophy of the anterior maxilla due to teeth loss were selected and split into groups according to the type of material used: Control Group (CG) (n = 4) - particulate xenograft only and Test Group (TG) (n = 4) - a combination of particulate xenograft and BMAC...
January 2016: Contemporary Clinical Dentistry
Jue Liang, Jessica J Struckhoff, Hongwei Du, Paul D Hamilton, Nathan Ravi
The natural vitreous is a biological hydrogel consisting primarily of a collagen and anionic hyaluronate. It is surgically removed in many ocular diseases and replaced with fluids, gases, or silicone oils. We have been interested in developing synthetic hydrogels as vitreous substitutes. In this study, we combined the stiffness and hydrophobicity of polymethacrylamide (PMAM) and the anionic nature of polymethacrylate (PMAA) to make copolymers that would mimic the natural vitreous. We used bis-methacryloyl cystamine (BMAC) to introduce thiol groups for reversible crosslink...
February 13, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Jorge Chahla, Chase S Dean, Gilbert Moatshe, Cecilia Pascual-Garrido, Raphael Serra Cruz, Robert F LaPrade
BACKGROUND: Bone marrow aspirate concentrate (BMAC) has emerged as a novel treatment for pathology of the knee. Despite containing a limited number of stem cells, BMAC serves as a source of growth factors that are thought to play an important role as a result of their anabolic and anti-inflammatory effects. To our knowledge, there is no systematic review regarding the outcomes of bone marrow aspirate concentrate used for the treatment of chondral defects and osteoarthritis of the knee...
January 2016: Orthopaedic Journal of Sports Medicine
Martin O'Malley, Bridget DeSandis, Answorth Allen, Matthew Levitsky, Quinn O'Malley, Riley Williams
BACKGROUND: Proximal fractures of the fifth metatarsal (zone II and III) are common in the elite athlete and can be difficult to treat because of a tendency toward delayed union, nonunion, or refracture. The purpose of this case series was to report our experience in treating 10 NBA players, determine the healing rate, return to play, refracture rate, and role of foot type in these athletes. METHODS: The records of 10 professional basketball players were retrospectively reviewed...
May 2016: Foot & Ankle International
Aaron J Krych, Danyal H Nawabi, Nadja A Farshad-Amacker, Kristofer J Jones, Travis G Maak, Hollis G Potter, Riley J Williams
BACKGROUND: Limited information exists on the clinical use of a synthetic osteochondral scaffold plug for cartilage restoration in the knee. PURPOSE/HYPOTHESIS: The purpose of this study was to compare the early magnetic resonance imaging (MRI) appearance, including quantitative T2 values, between cartilage defects treated with a scaffold versus a scaffold with platelet-rich plasma (PRP) or bone marrow aspirate concentrate (BMAC). The hypothesis was that the addition of PRP or BMAC would result in an improved cartilage appearance...
January 2016: American Journal of Sports Medicine
Wayne Scott, Cheryl Adams, Shantelle Cyr, Brianna Hanscom, Kevin Hill, Jeffrey Lawson, Colin Ziegenbein
STUDY DESIGN: Single-blind, block-randomization crossover design. OBJECTIVE: To compare the knee extensor muscle torque production elicited with 2500-Hz burst-modulated alternating current (BMAC) and with a monophasic pulsed current (MPC) at the maximum tolerated stimulation intensity. BACKGROUND: Neuromuscular electrical stimulation (NMES) is often used for strengthening the quadriceps following knee surgery. Strength gains are dependent on muscle torque production, which is primarily limited by discomfort...
December 2015: Journal of Orthopaedic and Sports Physical Therapy
Paulo José Pasquali, Marcelo Lucchesi Teixeira, Thiago Altro de Oliveira, Luis Guilherme Scavone de Macedo, Antonio Carlos Aloise, André Antonio Pelegrine
Purpose. To investigate the regenerative results obtained with the association of bone marrow aspirate concentrate using the Bone Marrow Aspirate Concentrate (BMAC) method to a xenogeneic bone graft (Bio-Oss) in sinus floor elevation. Materials and Methods. Using a randomized controlled study design in eight consecutive patients (age of 55.4 ± 9.2 years), 16 sinus floor lift procedures were performed with Bio-Oss alone (control group, CG, n = 8) or combined with bone marrow aspirate concentrate obtained via the BMAC method (test group, TG, n = 8)...
2015: International Journal of Biomaterials
Arianna Gianakos, Amelia Ni, Lester Zambrana, John G Kennedy, Joseph M Lane
OBJECTIVES: Long bone fractures that fail to heal or show a delay in healing can lead to increased morbidity. Bone marrow aspirate concentrate (BMAC) containing bone mesenchymal stem cells (BMSCs) has been suggested as an autologous biologic adjunct to aid long bone healing. The purpose of this study was to systematically review the basic science in vivo evidence for the use of BMAC with BMSCs in the treatment of segmental defects in animal long bones. DATA SOURCES: The PubMed/MEDLINE and EMBASE databases were screened in July 14-25, 2014...
January 2016: Journal of Orthopaedic Trauma
Amit N Patel, Sanjay Mittal, Goekmen Turan, Amalia A Winters, Timothy D Henry, Hueseyin Ince, Naresh Trehan
UNLABELLED: Cell therapy is an evolving option for patients with end-stage heart failure and ongoing symptoms despite optimal medical therapy. Our goal was to evaluate retrograde bone marrow cell delivery in patients with either ischemic heart failure (IHF) or nonischemic heart failure (NIHF). This was a prospective randomized, multicenter, open-label study of the safety and feasibility of bone marrow aspirate concentrate (BMAC) infused retrograde into the coronary sinus. Sixty patients were stratified by IHF and NIHF and randomized to receive either BMAC infusion or control (standard heart failure care) in a 4:1 ratio...
September 2015: Stem Cells Translational Medicine
Pingal Desai, Saad Mumtaz Hasan, Lester Zambrana, Vishal Hegde, Anas Saleh, Matthew R Cohn, Joseph M Lane
BACKGROUND: While the gold standard of treatment of nonunion is open autologous bone grafting, studies have shown that injecting bone marrow aspirate concentrates (BMAC) is effective in treating tibial nonunions with fracture gaps less than 5 mm. QUESTIONS/PURPOSES: We aim to demonstrate that combining BMAC with osteoinductive agents can effectively treat delayed or nonunion regardless of fracture gap size, nonunion site, or osteoinductive agent used. METHODS: In this non-randomized retrospective-prospective cohort study, 49 patients with tibial nonunion met the inclusion criteria and underwent BMAC injection with demineralized bone matrix (DBM) and/or recombinant human bone morphogenic protein-2 (rhBMP-2)...
July 2015: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
N Ardjomandi, F Duttenhoefer, S Xavier, T Oshima, A Kuenz, S Sauerbier
INTRODUCTION: The aim of this work was to analyse the suitability of mesenchymal stem cell isolation by FICOLL density centrifugation and the closed bone marrow aspirate concentrate (BMAC) system for sinus augmentation with bovine bone mineral (BBM) in the sheep model. METHODS: 16 sheep underwent sinus augmentation with BBM and MSCs; they were divided between two groups with survival points of 8 and 16 weeks. For the FICOLL control arm three, and for the BMAC test arm, five augmentations were performed for each time point...
September 2015: Journal of Cranio-maxillo-facial Surgery
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