Abstract
Cervical septic arthritis can lead to complications such as epidural abscess, which may result in respiratory failure. We present a case of a 78-year-old male with cervical septic arthritis complicated by epidural abscess, leading to severe diaphragm dysfunction. Ultrasound evaluation revealed dysfunction of the left hemidiaphragm and compensatory activation of accessory respiratory muscles. Treatment included antibiotic therapy and corticosteroids, alongside respiratory support. After 21 days, improvements were observed in diaphragmatic function and respiratory muscle activation. Our findings highlight the importance of assessing both diaphragm and accessory respiratory muscles in cases of cervical septic arthritis with respiratory complications.