{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,11,15]],"date-time":"2022-11-15T10:28:16Z","timestamp":1668508096639},"reference-count":26,"publisher":"Georg Thieme Verlag KG","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nuklearmedizin"],"published-print":{"date-parts":[[2022,2]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>Die popliteale Bakerzyste galt lange Zeit als Kontraindikation bei der Durchf\u00fchrung einer Radiosynoviorthese (RSO). Insbesondere bei einem vorliegenden \u201eVentilmechanismus\u201c der Zyste f\u00fcrchtete man eine vermehrte Anreicherung des intraartikul\u00e4r injizierten Radiopharmazeutikums Yttrium-90-Kolloid in der Zyste, die aus einer mit der Kniegelenkh\u00f6hle kommunizierenden Bursa unter dem medialen Kopf des M. gastrocnemius bei chronischer Arthritis mit Ergussneigung entstehen kann. Aufgrund der im Vergleich zur Kniegelenkkapsel deutlich d\u00fcnneren Zystenwand wurde die Gefahr einer radiogenen Zystenruptur mit konsekutiver Freisetzung des hoch energetischen Betastrahlers in die umgebenden Weichteile und einer dadurch hervorgerufenen Weichteilnekrose diskutiert. Daher ist vor der Kniegelenk-RSO zwingend die sonografische Abkl\u00e4rung einer m\u00f6glichen Bakerzyste erforderlich. Neue Studien zeigen hingegen keinen Hinweis auf die Gefahr einer Zystenruptur durch eine lege artis durchgef\u00fchrte Kniegelenk-RSO.<\/jats:p><jats:p>Bei bereits pr\u00e4existierender Zystenwandruptur ist jedoch die Gefahr eines unkontrollierten Austritts des Radiopharmazeutikums mit nachfolgender Radionekrose auch weiterhin gegeben. Die Magnetresonanztomografie (MRT) ist die Methode der Wahl, um eine solche Zystenruptur im Vorfeld auszuschlie\u00dfen, liefert aber nicht immer zuverl\u00e4ssige Befunde. In derartigen F\u00e4llen ist die Binnenraumszintigrafie unter Verwendung von Tc-99m-Nanokolloid geeignet, die Integrit\u00e4t der Bakerzyste nachzuweisen und einen m\u00f6glichen Aktivit\u00e4tsaustritt aus der Zyste mit hinreichender Sicherheit auszuschlie\u00dfen. Die vorliegende Arbeit erl\u00e4utert diese Methode an repr\u00e4sentativen Fallbeispielen.<\/jats:p>","DOI":"10.1055\/a-1650-9513","type":"journal-article","created":{"date-parts":[[2021,10,29]],"date-time":"2021-10-29T23:30:15Z","timestamp":1635550215000},"page":"42-48","source":"Crossref","is-referenced-by-count":5,"title":["Die Bakerzyste \u2013 das stumpfe Damoklesschwert bei der Radiosynoviorthese (RSO)?"],"prefix":"10.1055","volume":"61","author":[{"given":"Willm Uwe","family":"Kampen","sequence":"additional","affiliation":[{"name":"Nuklearmedizin Spitalerhof, Radiologische Allianz, Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lutz S","family":"Freudenberg","sequence":"additional","affiliation":[{"name":"Nuklearmedizin, ZRN Rheinland, Korschenbroich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manfred","family":"Fischer","sequence":"additional","affiliation":[{"name":"Praxis f\u00fcr Radiologie, Nuklearmedizin und Strahlentherapie, Kassel, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rigobert","family":"Klett","sequence":"additional","affiliation":[{"name":"Standort Gie\u00dfen, \u00dcber\u00f6rtliche Berufsaus\u00fcbungsgemeinschaft f\u00fcr Nuklearmedizin, Hanau \u2013 Frankfurt \u2013 Offenbach \u2013 Gie\u00dfen, Giessen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2021,10,29]]},"reference":[{"key":"ref1","first-page":"559","volume-title":"Rauber\/Kopsch Anatomie des Menschen, Bd. 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