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Spine J. 2010 Oct;10(10):900-4. doi: 10.1016/j.spinee.2010.07.395.

Novel technique of reduction of a chronic atlantoaxial rotatory fixation using a temporary transverse transatlantal rod.

Author information

1
Department of Orthopaedics and Spine Surgery, Ganga Hospital, 313, Mettupalayam Rd, Coimbatore 641 043, Tamil Nadu, India. sr@gangahospital.com

Abstract

BACKGROUND CONTEXT:

Chronic atlantoaxial rotatory fixation (AARF) is uncommon as acute AARF is easily reduced either spontaneously or by conservative methods. Various anterior and posterior surgical approaches for a chronic AARF have been reported because of the difficulty encountered in obtaining reduction.

PURPOSE:

To describe a novel technique of reduction of a chronic AARF using a temporary transverse transatlantal rod.

STUDY DESIGN:

Technical report.

METHODS:

A 13-year-old girl presented with an 8-month-old chronic AARF with typical torticollis and "cock-robin" posture of the head with a normal neurology. As closed reduction with skull traction for 2 weeks failed to reduce the deformity, the patient underwent C1-C2 fusion. C1 lateral mass and C2 pedicle screws were inserted under computer navigation. A temporary transverse rod across the atlas and axis was placed to secure a three-column fixation to derotate the subluxed atlas into anatomical alignment. Rods were then connected between the C1 lateral masses and the C2 pedicle screws and fusion obtained with autologous iliac crest grafts.

RESULT:

Anatomic reduction of the atlantoaxial region was obtained without neural compromise, and satisfactory fusion was observed at 6-months follow-up.

CONCLUSION:

A temporary transatlantal rod provides a secure anchor point for easy maneuverability for reduction of a chronic AARF and has the advantage of being used even in the absence of the posterior arch of the atlas.

PMID:
20869004
DOI:
10.1016/j.spinee.2010.07.395
[Indexed for MEDLINE]

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