Memotherm stent

Stent fracture in the colon and rectum seems to be a rare event and has only been described in connection with one particular stent design. Odurny et al. (2001) described three cases in which Memotherm nitinol stents were found to be fractured after 3,6 and 7 months. All patients had originally been treated for recurrent anastomotic strictures, one of which was due to local tumour recurrence. This type of nitinol stent does seem unsuitable for long-term management of strictures in the gastrointestinal tract since fracture of Memotherm stents has also been reported in the biliary tract (Peck and Wattam 2000). 

Stents used 30-mm Z-stent 18 20 mm oesophageal Wallstent 10-22 mm WS Esopha-Coil Ultrallex Covered, modified Z-stent (2 types) 22-mm oesophageal Wallstent 1+25 mm Memotherm 1 covered GR-Z 20-22 mm oesoph. WS 1+25 mm Memotherm 16 mm vase. WS 20/22 Enteral WS ... 

Peck R, Wattam J (2000) Fracture of Memotherm metallic stents in the biliary tract. Cardiovasc Intervent Radiol 23 55-69... 

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