• Colin Y L Woon and Steven M Mardjetko.
• Department of Orthopaedic Surgery, University of Illinois at Chicago, 835 S. Wolcott Avenue, M/C 844, Chicago, IL, 60612, USA. wolv23@gmail.com.
• Eur Spine J. 2018 Jul 1; 27 (Suppl 3): 403-408.

PurposeTo describe the manifestations, surgical treatment, and potential complications of Hajdu-Cheney syndrome (HCS), and the management of these complications.MethodsThe clinical presentation, management and outcome of HCS with severe osteoporosis and open skull sutures is presented, together with a literature review.ResultsA 20-year-old female with HCS underwent posterior occipitocervical fusion for symptoms of progressive basilar invagination. Because of delayed lambdoid suture closure, the stiff fusion construct lead to increased suture distraction, most notably in the upright (suture-open) position, with relief in the supine (suture-closed) position. This was successfully remedied with extension of the fusion construct anteriorly over the skull vertex to the frontal bones.ConclusionsIn patients with HCS and other conditions with delayed suture closure, the surgeon must be cognizant of the presence of mobility at the suture lines, and consider extending the fusion construct anteriorly over the skull vertex up to the frontal bones. Because of significant osteoporosis in these syndromes, multiple fixation points and augmentation with bone graft are important principles.

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