小児顎関節突起骨折患者のアンケートによる経過観察

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  • Prognostic investigation by questionnaire of pediatric patients with mandibular condylar fractures

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This investigation by questionnaire was done to study the functional outcomes of ten patients (aged under 15) with condylar fractures at an average of 9 years after the treatment, who had been conservatively treated. All fractures were classified according to the Spiessl & Schroll classification (1972). Three fractures were classified as nondisplaced fracture; four fractures as low neck fracture with displacement; and three fractures as high neck fracture with displacement. No patient described trismus or pain at rest. One patient complained of mild occasional pain with mandibular motion in the fractured side. Joint sounds occurred in two joints. One patient with mental retardation had a slight reduced chewing capacity. The criteria for assessment of the postoperative jaw function are classified into four groups: excellent, fair, poor, and no good (Nakatomi, 1964). Eight patients were evaluated as excellent and two were assessed as fair. One patient assessed as fair showed a deformed condyle (cortical irregularity, bifid condyle, neoarthrosis, shortened ramus height), a flattening of glenoid fossa and a severe disc deformation. Conservative treatment is still justified in children (aged under 15) with condylar fractures, promising a good functional recovery, but a long-term subsequent study of jaw function will be necessary in cases with deformed condyle after conservative treatment.

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