Effect of arthroscopic ethanolamine oleate injection in retrodiscal fibers on internal derangement with reduction of tempromandibular joint

Objectives: The purpose of the present study was to evaluate arthroscopic injection of ethanolamine oleate as sclerosing solution in treatment of temporomandibular joint disorder disc displacement with reduction. Subjects and methods: Eight patients were involved in the study, with a mean age of 25.7 years. Under general anesthesia, using a scalpel to make an opening in the skin. Sharp trocar then blunt trocar 3- washing the joint with a salt solution to clear the vision, locating the retrodiscal fibers and sclerosing agent be injected, by using one c.c. tuberculin plastic syringe with 26 gauge and 1.5 inch bevel steel needle was used, the needle filled with 0.2 ml of ethanolamine oleate 5% and 0.1 ml of local anesthetic without vasoconstrictor, mepivacaine hydro-chloride 2%. Postoperative medication, Patient were instructed to take a postoperative medical regimen. Patients were evaluated after 6 months for radiographic evaluation in pain score, inter incisal distance, muscles tenderness, lateral movement, clicking, maximum protrusion, and bite registration anterior and posterior. Results: There was statistically significant change in pain score, inter incisal distance, muscles tenderness, lateral movement, clicking, maximum protrusion, and bite registration anterior and posterior, but There was not statistically significant change in radiographic evaluation. Conclusion: The concept of injection retrodiscal fibers with sclerosing agent for treat the disc displacement with reduction of TMJ has been developed to optimize treatment strategies.