The study compares resorbable versus titanium fixation systems for their aesthetic and functional outcome in the treatment of zygomatic fractures.
Twenty-seven patients who required operative reduction and internal fixation for zygomatic fractures were studied in the period from April 2007 to March 2008. Fourteen patients who had fixation with resorbable plate/screws (group A) were compared with 13 patients fixed with titanium plates/screws (group B). The aesthetic outcome was evaluated by an overall self-satisfaction score at 2, 4, and 6 weeks and then at 6 months and 1 year postoperative interval, and the degree of displacement from computed tomographic facial bones were compared preoperatively and 1 year postoperatively. The functional outcome was evaluated by a self-satisfaction scoring system and maximum mouth opening during the same time intervals.
The outcome showed that the 2 groups were matched in age, sex ratio, fracture severity, total displacement with 5 sutures, and aesthetic scores preoperatively (P > 0.05). The subjective evaluation by patients for functional satisfaction and overall satisfaction all showed lower satisfaction of absorbable group when compared to titanium group within a postoperative 4-week period, but the satisfaction was similar for both groups after 4 weeks. There was no significant difference between the 2 groups at each measured time period. Postoperative total displacement and aesthetic score demonstrated great improvement in fracture reduction and long-term stability in both groups.
There is no significant difference in the outcome between resorbable and titanium plates/screws in fixation of zygomatic fractures. These findings together with the advantages of biodegradable fixation validate its use in fixing these fractures with minimal morbidity.