BACKGROUND CONTEXT: For the treatment of irreducible atlantoaxial dislocation (AAD), anterior decompression has been commonly used by removal of the odontoid process and fixation of the vertebral body by means of the transoral approach. Although the transoral approach has been well established, there are some disadvantages. By contrast, there have been few technical case reports of the posterolateral approach, especially for irreducible AAD. PURPOSE: To describe a technical case report of the posterolateral approach for irreducible AAD, demonstrating the specific advantages. STUDY DESIGN/ SETTING: Technical case report. PATIENT SAMPLE: Case report. OUTCOME MEASURES: Report of postoperative symptoms. METHODS/DESCRIPTION: A 74-year-old woman presented with sudden left hemiparesis because of irreducible AAD. She underwent the odontoidectomy and reduction by means of the posterolateral approach. Posterior fixation with instrumentation and an iliac bone graft was performed 16 days later. The results of radiological examinations were satisfactory. The posterolateral approach takes advantage of the particular features of C1-C2 dislocation of irreducible AAD. CONCLUSIONS: We suggest the possibility that the posterolateral approach is feasible and effective in most cases with irreducible AAD.
BACKGROUND CONTEXT: For the treatment of irreducible atlantoaxial dislocation (AAD), anterior decompression has been commonly used by removal of the odontoid process and fixation of the vertebral body by means of the transoral approach. Although the transoral approach has been well established, there are some disadvantages. By contrast, there have been few technical case reports of the posterolateral approach, especially for irreducible AAD. PURPOSE: To describe a technical case report of the posterolateral approach for irreducible AAD, demonstrating the specific advantages. STUDY DESIGN/ SETTING: Technical case report. PATIENT SAMPLE: Case report. OUTCOME MEASURES: Report of postoperative symptoms. METHODS/DESCRIPTION: A 74-year-old woman presented with sudden left hemiparesis because of irreducible AAD. She underwent the odontoidectomy and reduction by means of the posterolateral approach. Posterior fixation with instrumentation and an iliac bone graft was performed 16 days later. The results of radiological examinations were satisfactory. The posterolateral approach takes advantage of the particular features of C1-C2 dislocation of irreducible AAD. CONCLUSIONS: We suggest the possibility that the posterolateral approach is feasible and effective in most cases with irreducible AAD.
Authors: Patrick Haas; Till-Karsten Hauser; Kosmas Kandilaris; Marco Skardelly; Marcos Tatagiba; Sasan Darius Adib Journal: Front Surg Date: 2022-04-26