omovertebral bone

The omovertebral bone (os omovertebrale) is present in ~35% (range 19-47%) of cases of Sprengel deformity.

Gross anatomy

It runs from the superomedial border of the scapula to the spinous processes, transverse processes or laminae of C4 to C7 . Occasionally it can be bilateral . The connection from the scapula to the vertebrae may be fibrous or osseous.