The article presents a diagnostic algorithm for detecting the spondylogenic acute maxillary ethmoiditis in children based on: thorough obstetric history, neurological status of the child, otorhinolaryngological examination of ENT organs, X-ray examination of the cervical spine, X-ray computed tomography of the paranasal sinuses, as well as the electromyographic examination of the face muscles in paranasal sinuses projection (the lower lid part of eye circular muscle/ muscle of mastication in comparison with probably intact – anterior cricothyroid muscle). The clarification of X-ray electrophysiological semiotics of combined lesions of the paranasal sinuses in children with the birth injury of the cervical spine allowed us to identify the optimal diagnostic algorithm for spondylogenic acute sinusitis. We selected 102 patients aged 3 to 10 years, the average age was 4.73±1.99 years, including 44 males (43.13%) and 58 females (56.86%). The patients were divided into 3 groups. The first group, acute sinusitis, consisted of 40 people; the second one – recurrent sinusitis – of 31 patients; the third one – relatively healthy patients – of 31 children as well. The study compared clinical, radiological, electrophysiological (electromyographic) data to determine the tactics of further management, treatment, and prevention of patients with the diagnosis of acute maxilloethmoidal sinusitis associated with birth injury of the cervical spine.