Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Sep-Oct;55(5):299-304.
doi: 10.1590/0100-3984.2021.0133.

Role of magnetic resonance imaging in assessment of acetabular and femoral version in developmental dysplasia of the hip

Karim Mohamed Elsharkawi  1 , Mohamed Samy Barakat  1 , Ali Abdel Karim Farahat  1 , Amin Abdel-Razek Youssef Ahmed  1 , Rim Aly Bastawi  1
Affiliations

Role of magnetic resonance imaging in assessment of acetabular and femoral version in developmental dysplasia of the hip

Karim Mohamed Elsharkawi et al. Radiol Bras. 2022 Sep-Oct.

Abstract
in English, Portuguese

Objective: To evaluate the role of magnetic resonance imaging (MRI) in the assessment of femoral and acetabular version in developmental dysplasia of the hip (DDH).

Materials and methods: This was a cross-sectional study of 20 consecutive patients with DDH (27 dysplastic hips) who were examined with MRI. In dysplastic and normal hips (DDH and comparison groups, respectively), we evaluated the following parameters: osseous acetabular anteversion (OAA); cartilaginous acetabular anteversion (CAA); femoral anteversion; osseous Mckibbin index (OMI); cartilaginous Mckibbin index (CMI); and the thickness of the anterior and posterior acetabular cartilage.

Results: The OAA was significantly greater in the dysplastic hips. The CAA, femoral anteversion, OMI, and CMI did not differ significantly between the normal and dysplastic hips. In the DDH and comparison groups, the OAA was significantly lower than the CAA, the OMI was significantly lower than the CMI, and the posterior acetabular cartilage was significantly thicker than the anterior cartilage.

Conclusion: Our findings confirm that MRI is a valuable tool for the assessment of femoral and acetabular version in DDH. Preoperative MRI evaluation has great potential to improve the planning of pelvic and femoral osteotomies.

Objetivo: Avaliar o papel da ressonância magnética (RM) na avaliação da versão femoral e acetabular na displasia do desenvolvimento do quadril (DDQ).

Materiais e métodos: Estudo transversal de 20 pacientes consecutivos com DDQ (27 quadris displásicos) que foram examinados com RM. Nos quadris displásicos e normais (grupos DDQ e comparação, respectivamente), avaliamos os seguintes parâmetros: anteversão acetabular óssea (AAO), anteversão acetabular cartilaginosa (AAC), anteversão femoral, índice de Mckibbin ósseo (IMO), índice de Mckibbin cartilaginoso (IMC) e espessura da cartilagem acetabular anterior e posterior.

Resultados: A AAO foi significativamente maior nos quadris displásicos. A AAC, anteversão femoral, IMO e IMC não diferiram significativamente entre os quadris normais e displásicos. Nos grupos DDQ e comparação, a AAO foi significativamente menor que a AAC, o IMO foi significativamente menor que o IMC, e a cartilagem acetabular posterior foi significativamente mais espessa que a anterior.

Conclusão: Nossos achados confirmam que a RM é uma ferramenta valiosa para a avaliação da versão femoral e acetabular na DDQ. A avaliação pré-operatória por RM tem grande potencial para melhorar o planejamento das osteotomias pélvicas e femorais.

Keywords: Acetabulum/diagnostic imaging; Bone anteversion/diagnostic imaging; Developmental dysplasia of the hip; Femur/diagnostic imaging; Magnetic resonance imaging.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Axial intermediate-weighted fat-suppressed proton density FSE MRI sequence showing the lines employed for the measurement of OAA and CAA. Line A is tangential to the posterior aspect of the ischial tuberosities. Line B is orthogonal to line A. Line C is tangential to the outermost anterior and posterior bony rims of the acetabulum. Line D is tangential to the anterior and posterior chondrolabral junction. OAA is the angle between lines B and C. CAA is the angle between lines B and D. The right hip (R) is dysplastic, and the left hip is normal. Note that the femoral neck on the right side is at the same level as the femoral head on the left side, due to superior displacement of the dislocated femur on the right (dysplastic) side.
Figure 2
Figure 2
Fused axial T1-weighted FSE MRI sequence showing the lines employed for the measurement of FA in a dysplastic right hip (R). The femoral condyles on the right side are at the same level as the lower femoral diaphysis on the left side, due to superior displacement of the dislocated femur on the right (dysplastic) side.
Figure 3
Figure 3
Axial 3D SPGR MRI sequence showing the cartilage thickness at the anterior and posterior rims of the acetabulum. The right hip (R) is dysplastic, and the left hip is normal. The femoral neck on the right side is at the same level as the femoral head on the left side, due to superior displacement of the dislocated femur on the right (dysplastic) side.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Lu W, Li L, Zhang L, et al. Development of acetabular anteversion in children with normal hips and those with developmental dysplasia of the hip: a cross-sectional study using magnetic resonance imaging. Acta Orthop. 2021;92:341–6. - PMC - PubMed
    1. Cai Z, Zhao Q, Li L, et al. Can computed tomography accurately measure acetabular anterversion in developmental dysplasia of the hip? Verification and characterization using 3D printing technology. J Pediatr Orthop. 2018;38:e180–e185. - PubMed
    1. Sarban S, Ozturk A, Tabur H, et al. Anteversion of the acetabulum and femoral neck in early walking age patients with developmental dysplasia of the hip. J Pediatr Orthop B. 2005;14:410–4. - PubMed
    1. Jia J, Li L, Zhang L, et al. Can excessive lateral rotation of the ischium result in increased acetabular anteversion? A 3D-CT quantitative analysis of acetabular anteversion in children with unilateral developmental dysplasia of the hip. J Pediatr Orthop. 2011;31:864–9. - PubMed
    1. Ezoe M, Naito M, Inoue T. The prevalence of acetabular retroversion among various disorders of the hip. J Bone Joint Surg Am. 2006;88:372–9. - PubMed

LinkOut - more resources