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Table 3 Stulberg classification of acetabulum and femoral head

From: Comparison of orthopaedic manifestations of multiple epiphyseal dysplasia caused by MATN3 versus COMP mutations: a case control study

Stulberg classification* MATN3 group COMP group
I 9 0
II 5 0
III 11 6
IV 2 10
V 0 0
  1. *Linear by linear association test shows significant difference between the two groups (p < 0.001).
  2. For statistical analysis, only one side of the hip was selected randomly on radiographs taken over 10 years of age.