[Recent evaluation and analysis of the clinical effect of two closed treatment methods in children with intracapsular condyle fracture].

Objective: To summarize and analyze clinical characteristics of pediatric mandibular condylar fractures and the long-term therapeutic effects of closed treatment. Methods: A retrospective study was conducted for pediatric condylar fracture in the Department of Oral and Maxillofacial Surgery of Peking University School and Hospital of Stomatology from October 2015 to October 2019, including 33 males (67.3%) and 16 females (32.7%), with an average age of (8.3±2.1) years old. According to the treatment methods, the children were divided into two groups: group A was a removable occlusal splint accompanied with functional exercise, group B was a pure functional exercise. Forty-nine cases (76 sides) children with intracapsular condylar fracture were included in this study. Twenty-three cases in group A and 26 cases in group B. The maximum month opening increased from (20.0±6.2) mm to (46.0±5.3) mm 6 months after closed treatment. Subjective evaluation, special examination, qualitative analysis and quantitative analysis of imaging were used to evaluate the condylar remodeling and functional recovery of temporomandibular joint in two groups of children after closed treatment of intracapsular condyle fracture. Results: There was no significant difference in subjective evaluation, maximum opening examination, mouth open-type, mandibular protrusion, lateral movement and qualitative analysis of imaging at the six-month follow-up after injury. Quantitative imaging measurements showed that the condylar anteroposterior diameter and condylar height in Group B were significantly higher than those in Group A after 1 year of injury. Conclusions: Closed treatment for pediatric condylar fractures can achieve satisfactory results. After 6 months of injury, the children in the two groups could recover the temporomandibular joint function and promote the condylar adaptative remodeling.