In pediatric patients with mandible fractures and concomitant cervical spine injury (CSI), treatment strategies may occasionally compete: condylar fractures require functional therapy with range of motion exercises of the temporomandibular joint (TMJ), while CSI requires neck immobilization. The authors report the case of a child presenting with bilateral condylar head fractures, a right parasymphyseal fracture, and concomitant CSI treated with cervical collar immobilization, who ultimately developed TMJ ankylosis. Here, the authors review mandibular condylar fracture management and suggest an approach for the pediatric patient presenting with condylar fractures and concomitant CSI requiring immobilization. To preserve range of motion at the TMJ, it is critical to prevent external restriction by prolonged cervical collar use. Instead, these patients benefit from a protocol utilizing conventional halo or noninvasive, pinless halo cervical spine stabilization. Without limitation of the TMJ, condylar fracture rehabilitation and healing may proceed unhindered.