Figure 17. mucopolysaccharidoses. wide ribs, glenoid hypoplasia, steep acetabula with constricted iliac wings, flat/irregular femoral head , spearhead metacarpals, platyspondyly, central anterior vertebral body beaking, hypoplastic odontoid. ← Previous Next → Figure 17. mucopolysaccharidoses. wide ribs, glenoid hypoplasia, steep acetabula with constricted iliac wings, flat/irregular femoral head , spearhead metacarpals, platyspondyly, central anterior vertebral body beaking, hypoplastic odontoid.