Document Detail

Flexions of the popliteal artery: technical considerations of femoropopliteal stenting.
MedLine Citation:
PMID:  21972163     Owner:  NLM     Status:  In-Data-Review    
Popliteal artery morphology changes while undergoing knee motion. A main flexion (i.e., the 'hinge point') and other flexions (termed 'accessory flexions') were described as a result of popliteal artery adaptation to knee flexion. Knee dynamics challenge the outcome of popliteal artery endovascular procedures. Complications such us stent fractures were reported despite rapidly improving technology. Understanding popliteal artery dynamics allows us to develop an endovascular technique that facilitates the avoidance of the difficulties of one of the most mobile arteries in the body. Here we report two cases with a novel stent implantation technique in the popliteal artery. The method includes diagnostic angiography, lesion angioplasty, and stenting using both extended and flexed knee in lateral view. The pressure gradients were measured with knee in extension and flexion before and after each step. A successful outcome was achieved in both cases. This method allows us: 1) to identify the flexions of the popliteal artery and its relationship with the lesions; 2) to detect those obstructions not visible with an extended knee; 3) to understand that the hinge point and accessory flexions can develop undesired and unexpected artery obstruction after a stent implantation only observed in knee flexion; and 4) to identify the morphological changes caused in the popliteal artery and its subsequent solution.
Gustavo A Tamashiro; Alberto Tamashiro; Miguel O Villegas; Andrés E Dini; Ana P Mollón; Denis A Zelaya; Carlos I Soledispa-Suarez; José A Díaz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of invasive cardiology     Volume:  23     ISSN:  1557-2501     ISO Abbreviation:  J Invasive Cardiol     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8917477     Medline TA:  J Invasive Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  431-3     Citation Subset:  IM    
Pte. Illia s/n y Marconi - El Palomar (1684), Buenos Aires, Argentina.
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