![]() ![]() 5 Longbin Road, Development Zone, Dalian, 116011, People’s Republic of China, Tel +86-18098876419, Fax +85963, Email Facet joint osteoarthritis (OA) is the most frequent form of facet joint syndrome. Ruihuan Du,1 Gang Xu,1,2 Xujue Bai,1 Zhonghai Li1,2 1Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, People’s Republic of China 2Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian, People’s Republic of ChinaCorrespondence: Zhonghai Li, The Third Department of the First Affiliated Hospital of Dalian Medical University, No. During the 12 months of follow-up only 3 patients had a relapse of the cyst (at 6 months) that were retreated with a 100% success.ĬT-guided ozone therapy for symptomatic LFSC is a safe and innovative treatment option, with good clinical results at 12 months follow-up in a significative percentage of patients, thus reducing the need for invasive surgical interventions. At 1 month evaluation, 92% of the patients referred partial or complete symptomatic response 86% of patients at 3 months and 84% at 6 months confirmed symptoms improvement final assessment, at 12 months after intervention, outlined overall significant clinical improvement in 81% of patients. Ozone administration was technically successful in 100% of procedures no immediate complications occurred. Follow-up MRI imaging at 6 and 12 months were obtained and confronted with the pre-procedural MRI to analyse cyst modification after the intervention. Clinical outcome was assessed with Numerical Rating Scale (NRS) and Oswestry Disability Index (ODI) evaluations, obtained prior to the intervention and at 1-, 3-, 6- and 12-months follow-up. We retrospectively reviewed clinical records and imaging studies of 77 patients who underwent CT-guided ozone treatment of symptomatic facet joint synovial cysts in our department over a 5-year span. To evaluate the clinical and radiological outcomes, in terms of safety and efficacy, of a new treatment method for symptomatic lumbar facet synovial cysts (LFSC), based on ozone injection inside the cyst.
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