Orthopaedics A 9-year-old child with high arched palate has shoulders meeting in front of his chest. He has: A Erb's palsy B Cleidocranial dysostosis C Chondro-osteodystrophy D Coical hyperostosis 💡 Explanation A 9-year-old child with high arched palate has shoulders meeting in front of his chest. He has: ✓ Correct Answer: B. Cleidocranial dysostosis