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Scott M Sporer - One of the best experts on this subject based on the ideXlab platform.

  • utility of trephine reamers in revision hip arthroplasty
    Journal of Arthroplasty, 2014
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p<.0001). Two patients suffered spontaneous postoperative periprosthetic fractures in the region of the trephined bone at 3 mo and 4 mo postoperatively. Despite undergoing ORIF with locked plates, they both re-fractured with necrotic bone observed at the time of revision. There is a 5.6% incidence of femoral shaft fractures near the region of trephined bone within 1 year of surgery. Given the location of these fractures, thermal necrosis may have occurred and consideration should be given to distally bypassing the region of the femur that has been trephined.

  • Utility of trephine reamers in revision hip arthroplasty.
    The Journal of arthroplasty, 2013
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p

Vamsi K Kancherla - One of the best experts on this subject based on the ideXlab platform.

  • utility of trephine reamers in revision hip arthroplasty
    Journal of Arthroplasty, 2014
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p<.0001). Two patients suffered spontaneous postoperative periprosthetic fractures in the region of the trephined bone at 3 mo and 4 mo postoperatively. Despite undergoing ORIF with locked plates, they both re-fractured with necrotic bone observed at the time of revision. There is a 5.6% incidence of femoral shaft fractures near the region of trephined bone within 1 year of surgery. Given the location of these fractures, thermal necrosis may have occurred and consideration should be given to distally bypassing the region of the femur that has been trephined.

  • Utility of trephine reamers in revision hip arthroplasty.
    The Journal of arthroplasty, 2013
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p

Pavel A. Strizhak - One of the best experts on this subject based on the ideXlab platform.

  • Temperature and convection velocities in two-Component liquid droplet until micro-explosion
    Experimental Thermal and Fluid Science, 2019
    Co-Authors: Dmitry Antonov, G. V. Kuznetsov, S. Ya. Misyura, Pavel A. Strizhak
    Abstract:

    Abstract The micro-explosion of slurries and emulsions droplets under heating contribute to a significant increase in efficiency of a large group of promising technologies, in particular, in the production of heat carriers based on flue gases, vapors, and water droplets, in flame and thermal water purification from unspecified impurities, and in environmentally friendly combustion of fuels, including those prepared from abundant industrial waste containing sewage and service water. In this paper, we study the consistent patterns of partial fragmentation and micro-explosion of two-liquid droplets consisting of a flammable (oil) and non-flammable (water) liquids. The consequences of rapid convective heat exchange have been researched between a droplet and heated air flow. The Planar Laser Induced Fluorescence optical technique was used to measure the droplet temperature field, and the Micro Particle Image Velocimetry – the convection velocities in the droplet. We focus on the structure of convective flows, centers of vortex formation, velocities, and the influence on the temperature in different droplet sections (especially, at the inter-Component Interface, whose destruction triggers the micro-explosive breakup of droplets). The tracer particles were used to simultaneously measure the convection velocities in the flammable and non-flammable liquids making up two droplet parts. We have determined the velocities and temperatures near the inter-Component Interface sufficient for micro-explosion of a rapidly heated two-liquid droplet. The experimental findings provide a deeper insight into the mechanism and main stages of inter-Component Interface destruction in heated heterogeneous droplets.

Daniel J Del Gaizo - One of the best experts on this subject based on the ideXlab platform.

  • utility of trephine reamers in revision hip arthroplasty
    Journal of Arthroplasty, 2014
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p<.0001). Two patients suffered spontaneous postoperative periprosthetic fractures in the region of the trephined bone at 3 mo and 4 mo postoperatively. Despite undergoing ORIF with locked plates, they both re-fractured with necrotic bone observed at the time of revision. There is a 5.6% incidence of femoral shaft fractures near the region of trephined bone within 1 year of surgery. Given the location of these fractures, thermal necrosis may have occurred and consideration should be given to distally bypassing the region of the femur that has been trephined.

  • Utility of trephine reamers in revision hip arthroplasty.
    The Journal of arthroplasty, 2013
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p

Wayne G Paprosky - One of the best experts on this subject based on the ideXlab platform.

  • utility of trephine reamers in revision hip arthroplasty
    Journal of Arthroplasty, 2014
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p<.0001). Two patients suffered spontaneous postoperative periprosthetic fractures in the region of the trephined bone at 3 mo and 4 mo postoperatively. Despite undergoing ORIF with locked plates, they both re-fractured with necrotic bone observed at the time of revision. There is a 5.6% incidence of femoral shaft fractures near the region of trephined bone within 1 year of surgery. Given the location of these fractures, thermal necrosis may have occurred and consideration should be given to distally bypassing the region of the femur that has been trephined.

  • Utility of trephine reamers in revision hip arthroplasty.
    The Journal of arthroplasty, 2013
    Co-Authors: Vamsi K Kancherla, Daniel J Del Gaizo, Wayne G Paprosky, Scott M Sporer
    Abstract:

    Powered trephines used over a femoral Component to disrupt the bone Component Interface can yield acceptable clinical and radiographic outcomes while minimizing direct mechanical injury and indirect thermal necrosis. Thirty-six patients required trephining for fractured stems (16), infection (8), malposition (7), modular junction failure (4), and acetabular exposure (1). Harris Hip Scores (HHS), radiographic healing, and complications were assessed at a follow-up of 50.01 mo. Mean HHS increased from 46.61 preoperatively to 87.78 postoperatively (p