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  • Title: Hypoplasia of the atlas causing cervical myelopathy with situs inversus totalis.
    Author: Tofuku K, Koga H, Yone K, Komiya S.
    Journal: Spinal Cord; 2007 Dec; 45(12):806-8. PubMed ID: 17297494.
    Abstract:
    STUDY DESIGN: A case report of myelopathic hypoplasia of the atlas with situs inversus totalis. OBJECTIVES: To describe a case of cervical myelopathy caused by hypoplasia of the atlas with situs inversus totalis, and to briefly review the pertinent literature. SETTING: Department of Orthopaedic Surgery, Kagoshima, Japan. METHODS: The history, results of examination, and findings of radiographic imaging studies for a 56-year-old man with a 10-year history of progressive myelopathy who presented to our hospital are described. RESULTS: Imaging studies revealed congenital hypoplasia of the atlas, ossification of the posterior longitudinal ligament at the levels of C3-C4, and situs inversus totalis. He underwent laminectomy of the atlas and laminoplasty of C3-C7 for decompression of the spinal cord. Operative intervention resulted in significant neurological improvement and relief of occipital neuralgia. CONCLUSION: To our knowledge, no case of myelopathic hypoplasia of the atlas with situs inversus totalis has previously been described. When encountering inherited disorders such as situs inversus totalis, a thorough search must be made for anomalies of the craniovertebral junction.
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