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Acta Ortopédica Brasileira

Print version ISSN 1413-7852


ASTOLFI, Rodrigo Schroll et al. Tomographic analysis for C2 screw placement in rheumatoid arthritis patients. Acta ortop. bras. [online]. 2012, vol.20, n.4, pp.207-209. ISSN 1413-7852.

OBJECTIVE: A morphological analysis of the bone structure of C2 in patients with rheumatoid arthritis in order to enhance the security of the stabilization procedures for this vertebra. METHODS: We retrospectively analyzed 20 CT scans of the cervical spine performed in patients with rheumatoid arthritis; the following parameters were measured: espinolaminar angle, thickness and length of C2 lamina. RESULTS: The mean values are: 5.92mm and 5.87mm for thickness of right and left laminae retrospectively, 27.75mm for right lamina lenght and 27.94mm for left lamina lenght, and 44.7o for espinolaminar angle. CONCLUSION: The values obtained are consistent with studies in normal subjects published by other groups, with no apparent need for change in the screw placement technique. Level of Evidence IV, Case series.

Keywords : Axis; Arthritis, rheumatoid [radiography]; Arthritis, rheumatoid [surgery]; Anatomy.

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