Orthopaedics Chordoma commonly involves -a) Dorsal spineb) Clivusc) Lumbar spined) Sacrume) Cervical spine A bd B d C ab D ac 💡 Explanation Chordoma commonly involves -a) Dorsal spineb) Clivusc) Lumbar spined) Sacrume) Cervical spine ✓ Correct Answer: A. bd