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Unusual occipital condyles of the skull : an osteological study with clinical implications

Unusual occipital condyles of the skull: an osteological study with clinical implications Maulana Azad Medical College, New Delhi, India Introduction The occipital condyles of the skull articulate with the superior articular facets of the atlas vertebra, thus forming the atlanto-occipital joint. Past research reports have described partition in the facets of the inferior surface of the occipital condyles. The presence of partition or double facets may interfere with the movement between the occipital condyles and the atlas vertebra. The present case describes an interesting osteological fi nding on the facets of the inferior surface of the occipital condyles. An incomplete longitudinal groove and a transverse groove were observed on the facets of the occipital condyles on the left and right sides respectively. Understanding the anatomical basis of craniovertebral anomalies is important when carrying out surgery in the region. A lateral approach during craniovertebral surgery requires resection of the occipital condyles. Hence, the morphology of the occipital condyles and their facets is important clinically.