Abstract
Biodegradable osteosynthesis could reduce/delete the problems associated with titanium plate removal. The aim of the present study was to compare the clinical performance in the first 2 post-operative years between a biodegradable and a titanium system in oral and maxillofacial surgery. The multicenter randomized controlled trial (RCT) was performed in the Netherlands from December 2006 to July 2009. Included were 230 patients who underwent a bilateral sagittal split osteotomy (BSSO) and/or a Le Fort-I osteotomy and those treated for fractures of the mandible, maxilla, or zygoma. The patients were randomly assigned to a titanium group (KLS Martin) or to a biodegradable group (Inion CPS). Plate removal was necessary in 16 of the 134 patients (11.9%) treated with titanium and in 21 of the 87 patients (24.1%) treated with the biodegradable system within the first 2 post-operative years [p = .016, HR biodegradable (95% CI) = 2.2 (1.1-4.2), HR titanium = 1]. Occlusion, VAS, and MFIQ scores showed that both groups had good mandibular function and were (almost) free of pain 1 and 2 years post-operatively (http://controlled-trials.com ISRCTN 44212338).
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