Critical oxygen content in porous anodes of solid tantalum technology of porous tantalum production porous tantalum and tantalum oxide nanoparticles for porous nitantalum silicate as a tandem catalyst for use of porous tantalum metaphyseal cones for severe tibial formation of porous tantalum in films anthony s unger, md uncemented tantalum monoblock tibial fixation for total trabecular metal technology technology porous tantalum and tantalum oxide nanoparticles for
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A strong correlation between a sharp increase of direct current in the iv characteristics at some critical oxygen content and the creation of a saturated solidphase solution of oxygen in tantalum was found the appearance of a crystalline oxide ta2o5 ph.
Technology of porous tantalum production yu zh tuleushev, v n volodin, zhakanbaev, v n lisitsin, a a migunova, a s suleymenova film thickness was determined by rutherford proton backscattering spectrometry using ukp21 tandem accele.
Porous tantalum and tantalum oxide nanoparticles institute for cell engineering, the johns hopkins university school of medicine, baltimore, tantalum, porous tantalum, tantalum oxide, x.
Porous nitantalum silicate as a tandem catalyst for selective synthesis of c 4 hydrocarbons from ethanol mg sibi, hari singh and anil k sinha csirindian institute of petroleum, dehradun 248005, india abstract selective catalysts for sustainable p.
Methods porous tantalum metaphyseal cones were implanted during fifteen revision total knee replacements in eight women and seven men who had an average age of 681 years at the time of the procedure the patients had had an average of 35 prior total kn.
A comparison of the specific surface areas of a tantalum film and the porous tantalum coating, which is performed by the bet method, demonstrates that the specific surface area increases by 2775 m 2 g ta our results can be applied to other binary syste.
Dr anthony s unger is the medical director for the gildenhorn institute for bone and joint health and an orthopaedic surgeon at sibley memorial hospital gruen t evaluation of a porous tantalum uncemented acetabular cup in revision total hip arthr.
Conclusions uncemented porous tantalum monoblock tibial components provided reliable fixation, excellent radiographic findings, and satisfactory functional outcomes at a mean of 10 years postoperatively we identified no cases of tibial component looseni.
Zimmer biomets trabecular metal material is a unique, highly porous biomaterial made from elemental tantalum with structural, functional, and physiological properties similar to that of bone 1 the material features a open, engineered and interconnecte.
Porous materials have reshaped the landscape of bone implants, as they allow for bone ingrowth and biological fixation, and eliminate implant loosening and related treatment failures the unique bonemimicking properties of porous tantalum enabled the us.
Bone ongrowth in retrieved porous tantalum monoblock tibial plates 1macdonald d 4rothman institute, philadelphia, pa dm68drexeledu introduction loosening in total knee arthroplasty continues to be porous tantalum monoblock tibial plates were.
Successful bony integration of a porous tantalum implant despite longlasting and ongoing infection histologic workup of an explanted shoulder prosthesis peter wahl corresponding author institute of anatomy, ludwigmaximiliansuniversity, , munich,.
Porous tantalum has been an important contributor to the clinical success of modern cementless total knee replacement it has this reticulated trabecular geometry, which emulates the structure of human cancellous bone including jay parvizi from the r.
Bone formation in vivo the porous tantalum coatings prepared by vps is a promising strategy for bone regeneration citation tang z, xie y, yang f, huang y, wang c, et al 2013 porous tantalum coatings prepared by vacuum plasma spraying enhance bmscs o.
Porous tantalum and tantalum oxide nanoparticles for regenerative medicine nencki institute of a shoulder prosthesis with a porous tantalum glenoidal base plate was retrieved after 3 years.
Methods sixtysix porous tantalum tibial cones sixtythree patients were reviewed at a mean followup time of seventy months range, sixty to 106 months according to the anderson orthopaedic research institute bone defect classification, twentyfour.
Find product information on the zimmer trabecular metal acetabular revision system, an alternative to preparing and using structural allografts bobyn jd, hacking sa, chan sp, et al characterization of a new porous tantalum biomaterial for reconstru.
Production of porous tantalum trabecular metal pttm cobalt chromium, titanium alloys, and stainless steel have been the conventional materials used for orthopedic implants with alterations and enhancements including surface coatings and porous designs,.
Zimmer trabecular metal technology has more than 15 years of clinical history, , interfacial frictional behavior cancellous bone, cortical bone, and a novel porous tantalum biomaterial j musculoskeletal res 1999 the zimmer institute zimmertvc.
Here you will find a sampling of the many articles published by the doctors at the insall scott kelly institute for orthopaedics and sports medicine these articles focus on treatment of orthopedic and sportsrelated ailments of the knee, shoulder, elbow.
Porous tantalum materials were prepared by a vacuum sintering technique using fine tantalum powder 045 m as the starting raw material effects of sintering time 10, 20, 30, 40 and 50 min at 1250c on the microstructures and the porous characterist.
Metallic porous iron nitride and tantalum nitride single crystals with enhanced electrocatalysis performance feiyan zhang cas key laboratory of design and assembly of functional nanostructures, fujian institute of research on the structure of matter, ch.
Research institute, rmls 1409, 1650 cedar avenue, montral, qubec, canada h3g 1a4 m tanzer, md, frcs c, clinical associate professor this porous tantalum material in terms of the extent and rate of bone ingrowth as well as the strength of xation.
Porous tantalum cones for large metaphyseal tibial defects in revision total knee arthroplasty a minimum 2year followup william j long, md, frcsc, and giles r scuderi, md.
Ing, georgia institute of technology, atlanta, ga 30332 usa email nneuhart3gatechedu tantalum pentoxide grown on the porous ta surface through the process of electrochemical oxidation of tantalum forms the conformal dielectric conducting parti.
Isk institute 260 east 66th street, new york, ny, 10065 646 2937515 porous tantalum cones for large metaphyseal tibial defects in revision total knee arthroplasty a minimum 2year follow.
However, the emergence of improved biomaterials, particularly porous titanium and tantalum, has led to a renewed interest in developing a cementless tibial component to enhance longterm survivorship of.
Lerator in the institute of nuclear physics republic of kazakhstan and was calculated using the amounts of deposited metals electronmicroscopic studies were performed using a jem8230 jeol electronmicroprobe technology of porous tantalum produ.