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Ideal entry point for the thoracic pedicle screw during the free hand technique

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Abstract

We have attempted to determine the spatial orientation of the base of the superior articular process in relation to the centre of the pedicle and then measure the transverse and sagittal screw angles using this ideal pedicle screw entry point – the base of the superior articular process at the junction of the lateral one-third and medial two-thirds. The proposed advantages of this technique are the easily identifiable entry point, the well-defined transverse and sagittal screw angles and a very low incidence of medial and inferior pedicle violation.

Résumé

Nous avons essayé de déterminer quelle devait être l’orientation pour l’implantation de vis pédiculaires au centre du pédicule en se basant par rapport aux articulaires. Le point d’entrée idéal se situe à la base de l’articulaire supérieure à la jonction du tiers moyen et du tiers latéral. Ce point est facile à identifier et parfaitement bien défini. Il réduit le nombre d’erreurs d’implantation en dehors du pédicule.

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Correspondence to Seung Woo Suh.

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Chung, K.J., Suh, S.W., Desai, S. et al. Ideal entry point for the thoracic pedicle screw during the free hand technique. International Orthopaedics (SICO 32, 657–662 (2008). https://doi.org/10.1007/s00264-007-0363-4

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  • DOI: https://doi.org/10.1007/s00264-007-0363-4

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