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Cancellous sponge

Tomohiro Komada, Kojiro Suzuki, Takashi Mizuno, Tomoki Ebata, Masaya Matsushima, Shinji Naganawa, Masato Nagino
Background: Percutaneous transhepatic portal vein embolization (PTPE) can increase the future liver remnant (FLR) volume before extended liver resection; however, there is no current consensus regarding the best embolic material for PTPE. Purpose: To evaluate the efficacy of PTPE using gelatin sponge particles and coils. Material and Methods: The medical records of 136 patients who underwent PTPE using gelatin sponge particles and metal coils were retrospectively reviewed...
April 2018: Acta Radiologica Open
Yong-Lei Wang, Bin Li, Sten Sarman, Aatto Laaksonen
Atomistic simulations have been performed to investigate the effect of aliphatic chain length in tetraalkylphosphonium cations on liquid morphologies, microscopic ionic structures, and dynamical quantities of tetraalkylphosphonium chloride ionic liquids. The liquid morphologies are characterized by sponge-like interpenetrating polar and apolar networks in ionic liquids consisting of tetraalkylphosphonium cations with short aliphatic chains. The lengthening aliphatic chains in tetraalkylphosphonium cations lead to polar domains consisting of chloride anions and central polar groups in cations being partially or totally segregated in ionic liquid matrices due to a progressive expansion of apolar domains in between...
December 14, 2017: Journal of Chemical Physics
Matthew J Smith, Ferris M Pfeiffer, Cristi R Cook, Keiichi Kuroki, James L Cook
This Level II study assessed clinically relevant outcomes for repair of large, retracted infraspinatus tendons (ISTs) using a demineralized bone matrix (DBM) sponge (FlexiGraft) hydrated in platelet-rich plasma (PRP) versus direct repair in a validated canine model. Adult research dogs (n = 10) were used. The IST was transected in each shoulder (n = 20) and randomized to direct repair or repair with DBM-PRP interposition at 4 weeks posttransection. At 12 weeks postrepair, dogs were sacrificed, and the repair evaluated by magnetic resonance imaging (MRI), histology, and biomechanical testing...
March 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Antoine Berberi, Nabih Nader, Rita Bou Assaf, Hussein Fayyad-Kazan, Saad Khairalah, Nabil Moukarzel
PURPOSE: The aim of this study was to clinically, radiologically, and histologically evaluate a sinus augmentation technique using a resorbable collagen sponge to maintain space between the Schneiderian membrane and the residual crestal bone. MATERIALS AND METHODS: Patients with partially edentulous maxillae were clinically and radiographically evaluated for implant placement. A total of 10 consecutive patients with the bone height for implant placement (<4.0 mm) were enrolled in the study...
October 2017: Implant Dentistry
Kenneth K Hansraj
INTRODUCTION: Spine surgeons are embracing advanced biologic technologies in an attempt to help millions of people achieve a better outcome in spine surgery. These new technologies may be complicated to understand, partly because the contribution of different types of cells has not been definitively identified. This paper describes the characteristics of the stem cells used in spine surgery, including their actions and possible complications. The description necessitates an overview of all studies to date on the use of stem cells in spine surgery, as well as other cells used in cellular therapy...
October 26, 2016: Surgical Technology International
Catarina Lavrador, Ramiro Mascarenhas, Paulo Coelho, Cláudia Brites, Alfredo Pereira, Sylwester Gogolewski
Bone substitutes have been a critical issue as the natural source can seldom provide enough bone to support full healing. No bone substitute complies with all necessary functions and characteristics that an autograft does. Polyurethane sponges have been used as a surgical alternative to cancellous bone grafts for critical bone defect donor sites. Critical bone defects were created on the tibial tuberosity and iliac crest using an ovine model. In group I (control-untreated), no bone regeneration was observed in any animal...
March 2016: Journal of Materials Science. Materials in Medicine
George A Mandelaris, Daniel B Spagnoli, Alan L Rosenfeld, James McKee, Mei Lu
This case report describes a tissue-engineered reconstruction with recombinant human bone morphogenetic protein 2/acellular collagen sponge (rhBMP-2/ ACS) + cancellous allograft and space maintenance via Medpor Contain mesh in the treatment of a patient requiring maxillary and mandibular horizontal ridge augmentation to enable implant placement. The patient underwent a previously unsuccessful corticocancellous bone graft at these sites. Multiple and contiguous sites in the maxilla and in the mandibular anterior, demonstrating advanced lateral ridge deficiencies, were managed using a tissue engineering approach as an alternative to autogenous bone harvesting...
May 2015: International Journal of Periodontics & Restorative Dentistry
Mark J Eagle, Paul Rooney, John N Kearney
Human demineralized bone matrix derived from cortical bone is used by surgeons due to its ability to promote bone formation. There is also a need for shaped demineralized bone matrices made from cancellous bone, where the properties of the material allow its insertion into defects, therefore acting as a void filler and scaffold onto which new bone can form. In this study, we report that demineralized bone sponges were prepared by dissecting and cutting knee bone into cancellous bone cubes of 1 cm(3) . These cubes were then taken through a series of warm water washes, some with sonication, centrifugation, and two decontamination chemical washes...
July 2015: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Stuart J Froum, Stephen Wallace, Sang-Choon Cho, Ismael Khouly, Edwin Rosenberg, Patricia Corby, Scott Froum, Patrick Mascarenhas, Dennis P Tarnow
The purpose of this study was to radiographically evaluate, then analyze, bone height, volume, and density with reference to percentage of vital bone after maxillary sinuses were grafted using two different doses of recombinant human bone morphogenetic protein 2/acellular collagen sponge (rhBMP-2/ACS) combined with mineralized cancellous bone allograft (MCBA) and a control sinus grafted with MCBA only. A total of 18 patients (36 sinuses) were used for analysis of height and volume measurements, having two of three graft combinations (one in each sinus): (1) control, MCBA only; (2) test 1, MCBA + 5...
September 2014: International Journal of Periodontics & Restorative Dentistry
Nicole M Protzman, Melissa M Galli, Scott T Bleazey, Stephen A Brigido
This case series was conducted to assess the safety and efficacy of using an allogeneic cancellous bone sponge for augmentation of foot and ankle arthrodeses. Twenty-five patients were prospectively enrolled in the study prior to undergoing fusion and were then followed for 12 months postoperatively. There were 45 joints: 7 ankles, 12 subtalars, 12 talonaviculars, 6 calcaneocuboids, 1 naviculocuneiform, 6 first tarsometatarsals, and 1 second tarsometatarsal. Patient-reported outcomes of pain (visual analog scale) and function (American Orthopaedic Foot and Ankle Society score) were obtained preoperatively and postoperatively at 6 and 12 months...
March 2014: Orthopedics
Robert E Marx, David B Harrell
PURPOSE: This study investigated the role of the bone marrow-derived CD34+ cell in a milieu of osteoprogenitor cells, bone marrow plasma cell adhesion molecules, recombinant human bone morphogenetic protein (rhBMP), and a matrix of crushed cancellous allogeneic bone in the clinical regeneration of functionally useful bone in craniomandibular reconstructions. The history and current concepts of bone marrow hematopoietic stem cells and mesenchymal stem cells are reviewed as they relate to bone regeneration in large continuity defects of the mandible...
March 2014: International Journal of Oral & Maxillofacial Implants
Jing Li, Hailin Yang, Huifeng Wang, Jianming Ruan
The superelastic nature of repeating the human bones is crucial to the ideal artificial biomedical implants to ensure smooth load transfer and foster the ingrowth of new bone tissues. Three dimensional interconnected porous TiNi scaffolds, which have the tailorable porous structures with micro-hole, were fabricated by slurry immersing with polymer sponge and sintering method. The crystallinity and phase composition of scaffolds were studied by X-ray diffraction. The pore morphology, size and distribution in the scaffolds were characterized by scanning electron microscopy...
January 1, 2014: Materials Science & Engineering. C, Materials for Biological Applications
Wei Shui, Wenwen Zhang, Liangjun Yin, Guoxin Nan, Zhan Liao, Hongmei Zhang, Ning Wang, Ningning Wu, Xian Chen, Sheng Wen, Yunfeng He, Fang Deng, Junhui Zhang, Hue H Luu, Lewis L Shi, Zhenming Hu, Rex C Haydon, James M Mok, Tong-Chuan He
Successful bone tissue engineering at least requires sufficient osteoblast progenitors, efficient osteoinductive factors, and biocompatible scaffolding materials. We have demonstrated that BMP9 is one of the most potent factors in inducing osteogenic differentiation of mesenchymal progenitors. To facilitate the potential use of cell-based BMP9 gene therapy for bone regeneration, we characterize the in vivo osteoconductive activities and bone regeneration potential of three clinically used scaffold materials, type I collagen sponge, hydroxyapatite-tricalcium phosphate (HA-TCP), and demineralized bone matrix (DBM), using BMP9-expressing C2C12 osteoblastic progenitor cells...
October 2014: Journal of Biomedical Materials Research. Part A
Stuart J Froum, Stephen Wallace, Sang-Choon Cho, Ismael Khouly, Edwin Rosenberg, Patricia Corby, Scott Froum, Timothy Bromage, Robert Schoor, Robert Norman, Dennis P Tarnow
The purpose of this study was to histomorphometrically evaluate the percentage of vital bone after grafting of maxillary sinuses using two different concentrations of recombinant human bone morphogenetic protein/acellular collagen sponge (rhBMP-2/ACS) combined with mineralized cancellous bone allograft (MCBA) and to compare the results to a control sinus grafted with MCBA only. Thirty-six sinuses in 18 patients had two of three of the graft combinations including: (1) control, MCBA only; (2) test one, MCBA + 5...
November 2013: International Journal of Periodontics & Restorative Dentistry
Robert E Marx, Lawrence Armentano, Alberto Olavarria, Juan Samaniego
PURPOSE: This study compared the histologic parameters and outcomes of two types of grafts in large vertical maxillary defects: a composite graft of recombinant human bone morphogenetic protein-2/acellular collagen sponge (rhBMP-2/ACS), crushed cancellous freeze-dried allogeneic bone (CCFDAB), and platelet-rich plasma (PRP); and size-matched 100% autogenous grafts. MATERIALS AND METHODS: Twenty patients each were treated with a composite graft, which contained 1...
September 2013: International Journal of Oral & Maxillofacial Implants
Qiang Chen, Francesco Baino, Nicola M Pugno, Chiara Vitale-Brovarone
A new approach based on the concepts of quantized fracture mechanics (QFM) is presented and discussed in this paper to estimate the bonding strength of trabecular-like coatings, i.e. glass-ceramic scaffolds mimicking the architecture of cancellous bone, to ceramic substrates. The innovative application of glass-derived scaffolds as trabecular-like coatings is proposed in order to enhance the osteointegration of prosthetic ceramic devices. The scaffolds, prepared by polymeric sponge replication, are joined to alumina substrates by a dense glass-ceramic coating (interlayer) and the so-obtained 3-layer constructs are investigated from micro-structural, morphological and mechanical viewpoints...
April 1, 2013: Materials Science & Engineering. C, Materials for Biological Applications
Stephen A Brigido, Scott T Bleazey, Nicole M Protzman, Albert D'Angelantonio, Harold D Schoenhaus
The present retrospective case crossover study was conducted to determine the effectiveness and safety data associated with the use of an allogeneic, cancellous bone sponge in an orthopedic foot and ankle population. We reviewed the medical records of 47 subjects (80 joints) who had undergone foot and/or ankle fusion with the cancellous bone sponge. The records were reviewed up to 12 months postoperatively. The joints included in the present study were 12 ankles, 3 ankle syndesmotic fusions (with concurrent total ankle arthroplasty), 17 subtalar joints, 17 talonavicular joints, 9 calcaneocubiod joints, 1 naviculocuneiform joint, 13 first tarsometatarsal joints, 6 lesser tarsometatarsal joints, and 2 first metatarsophalangeal joints...
January 2013: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Lady Wilson Canan, Renato da Silva Freitas, Nivaldo Alonso, Daniela Yukie Sakai Tanikawa, Diógenes Laércio Rocha, Julio Cezar Uili Coelho
BACKGROUND: The conventional methods of maxillary alveolar reconstruction in patient with cleft are the periosteoplasty and autologous bone grafting. As an important alternative of bone substitution, there is the recombinant human bone morphogenetic protein-2 (rhBMP-2). This study compares the rhBMP-2 with periosteoplasty and autologous bone grafting. METHODS: Patients with cleft and alveolar defect were divided into 3 groups of 6 patients who underwent to autologous iliac crest bone grafting, resorbable collagen sponge with rhBMP2, and periosteoplasty, respectively...
November 2012: Journal of Craniofacial Surgery
Frederick Wang, Don Hoang, Michael Medvecky, Nduka Amankulor, Edward Teng, Deepak Narayan
Large calvarial defects in the setting of chronic infection and limited autologous donor sites present challenging problems for the reconstructive surgeon. We report on a novel osteogenic implant as a potential calvarial reconstruction solution. Two patients with an extensive history of severe traumatic brain injury and multiple cranial operations desired delayed calvarial reconstruction subsequent to removal of infected acrylic and titanium implants. These patients underwent harvesting of cancellous femoral bone and bone marrow, which was placed between 2 layers of recombinant bone morphogenic protein 2 impregnated in acellular collagen sponges and an outer layer of sturdily pliable Vicryl mesh to create a moldable osteogenic implant construct...
July 2012: Journal of Craniofacial Surgery
Ganjun Feng, Ying Hong, Li Li, Hao Liu, Fuxing Pei, Yueming Song, Fuguo Huang, Chongqi Tu, Tao Li, Quan Gong, Limin Liu, Jiancheng Zeng, Qingquan Kong, Melanie Gupte
STUDY DESIGN: A series study of patients with lower cervical facet dislocation accompanied by traumatic disc herniation treated with anterior decompression and nonstructural bone grafting and posterior fixation. OBJECTIVE: To describe a surgical technique of anterior decompression and nonstructural bone grafting and posterior fixation and its clinical outcome in a group of patients with lower cervical facet dislocation accompanied by traumatic disc herniation. SUMMARY OF BACKGROUND DATA: The optimal treatment for lower cervical facet dislocation with a prolapsed disc is still controversial...
December 1, 2012: Spine
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