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Randomized control trial comparing the titanium osteosynthesis and the biodegradable osteosynthesis in mandibulotomy access
Author(s) -
Liu Jian Nan,
Ong Hui Shan,
Wang Ming Yi,
Wan Kenneth,
Qu Xing Zhou,
Zhang Chen Ping
Publication year - 2019
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.25509
Subject(s) - medicine , osteosynthesis , dentistry , osteoradionecrosis , randomized controlled trial , surgery , complication , implant , prospective cohort study , cohort , fixation (population genetics) , radiation therapy , population , environmental health
Background The clinical degradation rate and strength of biodegradable implant exposed to postoperative radiotherapy (PORT) are unknown. Methods A prospective randomized control trial of 40 consecutive mandibulotomy patients randomly divided into titanium and biodegradable cohorts. All patients received PORT. The following parameters were compared: maximal mouth opening, occlusal force, center of force trajectory, occlusal status, radiographic evidence of bony union, mandibular function impairment questionnaire (MFIQ), overall satisfaction score, and complication rates. Results Both the mandibular function and occlusal status parameter of the biodegradable and the titanium groups were not significantly difference. Biodegradable cohort showed better MFIQ scores ( P = .08) and overall satisfaction scores ( P = .64) but was not statistically significant. Of note, 40% of patients in the titanium cohort complained of plate palpability/cold intolerance and required plate removal ( P = .02); 10% of patients in the titanium cohort developed osteoradionecrosis. Conclusion Biodegradable osteosynthesis is as reliable as titanium osteosynthesis for mandibulotomy fixation. PORT did not increase the complication rate in the biodegradable group.