Redefining and Identifying Evidence-Based Indications for Open Reduction and Internal Fixation in Mandibular Condylar Fractures: A Comprehensive Systematic Review and Evidence Analysis.

Abstract

A major controversy in maxillofacial surgery practice is the management of mandibular condylar fractures (CFs). The debate revolves around open versus closed treatment, rather than identifying clear indications whereby open reduction and internal fixation (ORIF) is the most viable treatment modality. Opinions regarding precise indications for ORIF remain unclear and non-uniform. We aimed to refocus the debate regarding the optimal treatment for CFs by identifying the recent indications for ORIF in the literature and assessing the quality of the existing evidence for each indication. This systematic review searched Medline, Embase and the Cochrane Central Register of Controlled Trials for eligible studies. The included studies consisted of articles from the past 15 years involving patients with any type of CF who underwent ORIF based on specified indications. From 4711 papers, 100 studies were included. In these, 121 indications were identified. The most cited indications for ORIF were those proposed by Zide and Kent, namely displacement/angulation ≥10° and ramus height shortening of ≥2 mm. Evidence supporting these indications is weak, relying mainly on expert opinion rather than robust data, with a focus on treatment comparisons. Clear, evidence-based cutoffs regarding when ORIF is the only viable treatment option are needed for a consensus.