The ilioischial line, also known as the Köhler line,isa radiologic feature seen in the AP pelvis view and serves to assess the posterior acetabular column 1-4.
The ilioischial line takes its course along the lateral border of the obturator foramen to the medial border of the iliac wing and passes through the acetabular teardrop in normal hip joints.
2. Anderson L, Kapron A, Aoki S, Peters C. Coxa Profunda: Is the Deep Acetabulum Overcovered? Clinical Orthopaedics & Related Research. 2012;470(12):3375-82. doi:10.1007/s11999-012-2509-y - Pubmed
3. Fujii M, Nakamura T, Hara T, Nakashima Y, Iwamoto Y. Does Radiographic Coxa Profunda Indicate Increased Acetabular Coverage or Depth in Hip Dysplasia? Clinical Orthopaedics & Related Research. 2015;473(6):2056-66. doi:10.1007/s11999-014-4084-x - Pubmed
4. Leunig M, Nho S, Turchetto L, Ganz R. Protrusio Acetabuli: New Insights and Experience with Joint Preservation. Clinical Orthopaedics & Related Research. 2009;467(9):2241-50. doi:10.1007/s11999-009-0853-3 - Pubmed
5. Boone G, Pagnotto M, Walker J, Trousdale R, Sierra R. Radiographic Features Associated With Differing Impinging Hip Morphologies With Special Attention to Coxa Profunda. Clinical Orthopaedics & Related Research. 2012;470(12):3368-74. doi:10.1007/s11999-012-2539-5 - Pubmed
6. Violas P, Fassier F, Hamdy R, Duhaime M, Glorieux F. Acetabular Protrusion in Osteogenesis Imperfecta. J Pediatr Orthop. 2002;22(5):622-5. - Pubmed