Imaging modalities on Femoral Neck Anteversion (FNA): Recent advances and future prospective

Background: Femoral neck anteversion (FNA) now frequently observed globally. Presently its higher incidence located in our country like India. Three-dimensional computed tomography (3D CT) by some investigators proposed as the gold standard for measurements of the femoral neck ante version angle (FNA).Particularly, developmental dysplasia of the hip (DDH) is a simple and reliable imaging method. We using by non-ionizing technique determine the consistency between measurements of the FNA in DDH using 3D CT and magnetic resonance imaging (MRI) to estimate the precision, reliability, and reproducibility of FNA. Material and methods: The 3D CT and MRI were used to measure the FNA among patients, including girls and boys, with a mean age of 3-4 years (age range, 1-12 years), We performed independently by our radiologists and scientist at different time frames (2-3 weeks). Later on the radiologists had higher consistency was observed between the MRI and 3D CT. Results: This measurement we summarizes (intraclass correlation coefficient (ICC) of 0.906, P < 0.05). The mean inter-observer & intra-observer agreements were higher.So for MRI (ICC = 0.949 and 0.965, respectively, P < 0.05 for both) and for 3D CT (ICC = 0.943 and 0.967, P < 0.05 for both) respectively. We compared with 3D CT and MRI provided a precise, reliable, reproducible and new method of measuring the FNA in DDH. MRI is now recommended as an appropriate technique for measurement of the FNA in DDH, and this approach could replace 3D CT. Conclusion: MRI delivers no ionizing radiation and offers a better display of soft tissue pathological changes above then 80% of FNA.