Results 261 to 270 of about 2,770,069 (332)

3D Freeze‐Printing of Binder‐Free PEDOT:PSS

Macromolecular Materials and Engineering, EarlyView.
We present a 3D freeze‐printing strategy for PEDOT:PSS with DMSO, achieving over 350% conductivity enhancement through freezing‐induced polymer reorganization. This mild process avoids harsh and lengthy pre‐ and post‐processing steps, including thermal annealing, thus enabling direct printing onto thermally sensitive substrates like alginate hydrogels,
Joshua Weygant, Chon In Haydn Cheong, Nivedita Chandra Bose, Benedetta Gaggio, Yuan Shui, Stanley Gong Sheng Ka, Yu Shrike Zhang, Yan Yan Shery Huang   +7 more
wiley   +1 more source

Trapeziometacarpal Joint: A Mechanical Explanation of Total Prosthesis Failures

, 2019
openaire   +3 more sources

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Risk Factors for Prosthesis Failure in Pulmonary Valve Replacement

The Annals of Thoracic Surgery, 2011
After initial right ventricular outflow tract reconstruction, replacement of the pulmonary valve (PVR) with a bioprosthetic valve may be performed. Bioprosthetic valves fail (PVF) and require repeat replacement. Identification of risk factors for PVF would be useful for clinicians choosing among various options for the initial PVR.We retrospectively ...
Rahel Zubairi, Michiaki Imamura, Sadia Malik, W. Robert Morrow, Robert D.B. Jaquiss, Jeffrey M. Gossett   +5 more
openaire   +4 more sources

Failure of an uncemented thumb carpometacarpal joint ceramic prosthesis

Journal of Hand Surgery (European Volume), 2017
Thumb carpometacarpal joint replacement is associated with high rates of loosening and failure. We present our results for an uncemented ceramic–ceramic total joint prosthesis with a reverse ball-and-socket design and bioactive coating. Between 2008 and 2012, 29 prostheses were inserted into 28 patients (mean age 63 years) with advanced osteoarthritis.
A. Franke, Erwin Kollig, Dan Bieler, W Weber   +3 more
openaire   +4 more sources

Multidisciplinary approach for in-deep assessment of joint prosthesis failure

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
In spite of advancement in biomaterials and biomechanics, in development of new osteo-integrative materials and coatings, and in macro- micro- component design, a non negligible fraction of the implanted prosthesis fails before the expected lifetime. A prospective observational clinical study has been conducted to define and apply a set of experimental
Marco Molinari, Mattia Barbareschi, Federico Piccoli, E. Demattè, P. Dorigotti, M. Malavolta, Iole Caola, Patrizio Caciagli, Francesco Tessarolo, Giandomenico Nollo   +9 more
openaire   +4 more sources

Mechanical Failure of the Repiphysis Expandable Prosthesis

The Journal of Bone and Joint Surgery-American Volume, 2010
The current treatment of osteosarcoma includes neoadjuvant chemotherapy followed by wide resection of the tumor and postoperative chemotherapy. While amputation of the extremity was once the mainstay of treatment, medical and surgical developments over the last several decades have led to the success of limb-salvage surgery1,2.
Kathleen S. Beebe, Anthony D Uglialoro, Francis Patterson, Joseph Benevenia, Neeraj M. Patel   +4 more
openaire   +4 more sources

Symptomatic failure of snap-on bipolar radial head prosthesis

Journal of Shoulder and Elbow Surgery, 2009
As the design of prosthetic radial head components improves, and the understanding of the necessity for early restoration of elbow and forearm stability in complex elbow trauma increases, prosthetic radial head replacement is becoming more common. In fact, open reduction and internal fixation of complex radial head fractures has been shown to have ...
Jonathan Herald, Shawn W. O'Driscoll
openaire   +4 more sources

Vascular Prostheses Performance Assessment of Vascular Prosthesis Failure

Artificial Organs, 1986
Abstract: During 30 years of active participation in clinical vascular surgery and the screening and development of vascular prostheses, >450 different fabrications have been evaluated. Vascular prosthesis retrieval and analysis during this period of time have been systematized, and >40 different causes of failure of vascular prostheses have ...
A. Wesolow
openaire   +4 more sources

Patterns of Failure in Heat-Activated Crimping Prosthesis in Stapedotomy

Otology & Neurotology, 2011
To understand potential causes of failure in heat-activated crimping prosthesis in stapedotomy.Retrospective chart review of all primary and subsequent revision stapedotomy operations performed by the senior authors with heat-activated-crimping prosthesis between June 2003 and September 2009.
Todd A. Hillman, Yu-Lan Mary Ying, Douglas A. Chen   +2 more
openaire   +3 more sources

Implant and prosthesis failure rates with implant-supported maxillary overdentures: a systematic review.

International Journal of Prosthodontics, 2021
PURPOSE To assess the clinical outcomes of maxillary overdentures supported by dental implants by conducting a literature review. MATERIALS AND METHODS An electronic search was undertaken in March 2019.
P. Ghiasi, Camilla Ahlgren, C. Larsson, B. Chrcanovic   +3 more
semanticscholar   +1 more source