Experience in Conducting Oral Cavity Surgery in a Patient with Fibrodysplasia Ossificans Progressiva

The article presents a retrospective description of a clinical case of the oral cavity surgical rehabilitation in a patient with an extremely rare disease – Fibrodysplasia ossificans progressiva (FOP). The significant peculiarity of this disease is that due to a genetic mutation in the body, bone tissue is formed in places it is not meant to be, such as: muscles, tendons, ligaments, fascia, aponeuroses. As a result, fully formed bones appear in non-skeleton areas. The patient's disease started developing at the age of ten. After frequent injuries, bone conglomerates formed in the areas of shoulder blades, spine, and lower extremities. There were several attempts to remove ossifications, but after surgical interventions they reappeared. The patient was diagnosed with FOP for the first time at the age of 15 at Sverdlovsk Research Institute of Traumatology and Orthopedics. Since he was 35, the patient has been experiencing difficulty in opening his mouth. In 2017 the patient contacted Clinical Multidisciplinary Medical Center of E.A. Wagner Perm State Medical University complaining of pain in certain areas of the upper and lower jaw. The authors describe the tactics of surgical rehabilitation and the features of general anesthesia of a patient with FOP. This clinical experience can be useful for surgeons and anesthesiologists.