Percutaneous radiologically guided gastrostomy tubes: Procedural description and biomechanical comparison in a canine model

2020 ◽  
Vol 49 (7) ◽  
pp. 1334-1342
Author(s):  
Maureen A. Griffin ◽  
William T. N. Culp ◽  
Tanya C. Garcia ◽  
Craig B. Glaiberman ◽  
Michelle A. Giuffrida ◽  
...  
Keyword(s):  
Canine Model ◽  
Procedural Description ◽  
Gastrostomy Tubes ◽  
Biomechanical Comparison

A Biomechanical Comparison of Four Hip Arthroplasty Designs in a Canine Model

2019 ◽  
Vol 32 (05) ◽  
pp. 369-375 ◽  
Author(s):  
Nathaniel R. Ordway ◽  
Kristian J. Ash ◽  
Mark A. Miller ◽  
Kenneth A. Mann ◽  
Kei Hayashi
Keyword(s):  
Hip Arthroplasty ◽  
Canine Model ◽  
Activity Level ◽  
Torsional Stiffness ◽  
Short Stem ◽  
Peak Displacement ◽  
Tapered Stem ◽  
And Migration ◽  
Biomechanical Comparison

Abstract Objective The aim of this study was to develop an in vitro biomechanical protocol for canine cementless hip arthroplasty that represents physiological gait loading (compression and torsion) and to evaluate if three alternative implant designs improve fixation compared with the traditional collarless, tapered stem in the clinically challenging case of moderate canal flare index. Study Design Twenty-four (six/group) laboratory-prepared canine constructs were tested using a simulated gait and overload (failure) protocol. Construct stiffness, failure load/displacement and migration were measured as outcome variables. Results Simulated gait loading did not show any significant differences between implant types for peak displacement, peak rotation, torsional stiffness, subsidence or inducible displacement. The collared and collarless stem groups were stiffer in compression compared with the collarless with a lateral bolt and short-stem groups. Increasing the loading above simulated gait showed significant reductions in compressive and torsional stiffness for all implant constructs. Despite the reductions, the short-stem group showed significantly higher stiffness compared with the other three groups. Conclusion Peak failure loads (compressive and torsional) in this study were approximately four to seven times the simulated gait loading (430 N, 1.6 Nm) regardless of implant type and highlight the importance of limiting activity level (trotting, jumping) following hip replacement in the postoperative period and during the osseointegration of the implant.

V1540: Potassium-Titanyl-Phosphate (KTP) Laser Nerve-Sparing Laparoscopic Radical Prostatectomy: Effects on Cavernous Nerve Function in a Canine Model

2007 ◽  
Vol 177 (4S) ◽  
pp. 508-509
Author(s):  
Troy R. Gianduzzo ◽  
Jose R. Colombo ◽  
Georges-Pascal Haber ◽  
Kester Nahen ◽  
Cristina Magi-Galluzzi ◽  
...  
Keyword(s):  
Radical Prostatectomy ◽  
Canine Model ◽  
Laparoscopic Radical Prostatectomy ◽  
Potassium Titanyl Phosphate ◽  
Nerve Sparing ◽  
Ktp Laser ◽  
Nerve Function ◽  
Cavernous Nerve

1412: Corporal Cavernosal Apoptosis Following Radical Prostatectomy in the Canine Model

2004 ◽  
Vol 171 (4S) ◽  
pp. 372-372
Author(s):  
Carlumandarlo E.B. Zaramo ◽  
Nina G. Hall ◽  
Rupesh Raina ◽  
Ashok Agarwal ◽  
Inderbir S. Gill ◽  
...  
Keyword(s):  
Radical Prostatectomy ◽  
Canine Model

Comparison of High Purity Factor IX Concentrates and a Prothrombin Complex Concentrate in a Canine Model of Thrombogenicity

1991 ◽  
Vol 66 (05) ◽  
pp. 609-613 ◽  
Author(s):  
I R MacGregor ◽  
J M Ferguson ◽  
L F McLaughlin ◽  
T Burnouf ◽  
C V Prowse
Keyword(s):  
High Purity ◽  
Time Course ◽  
Prothrombin Complex Concentrate ◽  
Degradation Products ◽  
Canine Model ◽  
Factor Ix ◽  
In Vitro Tests ◽  
Albumin Infusion

SummaryA non-stasis canine model of thrombogenicity has been used to evaluate batches of high purity factor IX concentrates from 4 manufacturers and a conventional prothrombin complex concentrate (PCC). Platelets, activated partial thromboplastin time (APTT), fibrinogen, fibrin(ogen) degradation products and fibrinopeptide A (FPA) were monitored before and after infusion of concentrate. Changes in FPA were found to be the most sensitive and reproducible indicator of thrombogenicity after infusion of batches of the PCC at doses of between 60 and 180 IU/kg, with a dose related delayed increase in FPA occurring. Total FPA generated after 100-120 IU/kg of 3 batches of PCC over the 3 h time course was 9-12 times that generated after albumin infusion. In contrast the amounts of FPA generated after 200 IU/kg of the 4 high purity factor IX products were in all cases similar to albumin infusion. It was noted that some batches of high purity concentrates had short NAPTTs indicating that current in vitro tests for potential thrombogenicity may be misleading in predicting the effects of these concentrates in vivo.

Sign in / Sign up

Export Citation Format

Share Document