Biodegradation of polyglycolic acid in bone tissue: An experimental study on rabbits
- 1 February 1986
- journal article
- research article
- Published by Springer Nature in Archives of orthopaedic and trauma surgery
- Vol. 104 (6) , 333-338
- https://doi.org/10.1007/bf00454425
Abstract
The biodegradation of polyglycolic acid (PGA) was investigated in cortical bone of 21 rabbits and in cancellous bone of 15 rabbits. The follow-up times were 3, 6, and 12 weeks. Radiographical, histological, microradiographical, and oxytetracycline labeling studies were done. PGA was biocompatible and was degraded to a great extent in the cancellous bone and partly in the cortical bone in 12 weeks without any sign of inflammation or foreign body reaction. The biodegradation of PGA started peripherally in the area of the implant and continued with subsequent replacement by new bone. Der biologische Abbau von Polyglykolsäure (PGA) wurde im kortikalen Knochen von 21 Kaninchen Bowie in der Spongiosa von 15 Kaninchen untersucht. Die Beobachtungszeit betrug drei, sechs und zwölf Wochen. Die Studie erfolgte radiographisch, histologisch, microradiographisch und mit OTC-Markierung. PGA erwies sich als biologisch verträglich und wurde innerhalb von 12 Wochen ohne Anzeichen von Entzündung oder Fremdkörperreaktion in der Spongiosa fast vollständig und in der Kortikalis teilweise abgebaut. Der biologische Abbau von PGA begann in der Randzone des Implantates und fand unter gleichzeitigem Ersatz durch neugebildeten Knochen statt.Keywords
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