Abstract
Objective To explore the application value of the combined diagnosis of ultrasound, MRI, and X-ray in developmental dysplasia of the hip (DDH) in children. Methods Ninety children with suspected DDH admitted to our hospital from June 2017 to June 2020 were selected as the research objects to conduct a retrospective study. According to the age of the children, they were divided into a group with 0–6 months (group X), a group with 7–12 months (group Y), and a group older than 12 months (group Z), with 30 cases in each group. X-ray and high-frequency ultrasound were performed in all groups, and MRI examination was added to the children in groups Y and Z to compare the diagnostic value of the three imaging examinations in DDH children. Results No obvious differences in the general data and maternal risk factors were observed among the three groups (P < 0.05). The final comprehensive diagnostic results were taken as the gold standard, including 23 cases with acetabular dysplasia, 28 cases with subluxation of the femoral head, 31 cases with complete dislocation of the femoral head, and 8 non-DDH cases. The diagnostic accuracy of the three methods from high to low was MRI, high-frequency ultrasound, and X-ray, with obviously higher diagnostic accuracy of MRI than that of X-ray (P < 0.05). The ROC curves showed that the diagnostic efficacy from high to low was MRI + high-frequency ultrasound + X-ray, high-frequency ultrasound + X-ray, MRI, high-frequency ultrasound, and X-ray. Conclusion Ultrasound combined with X-ray has obvious advantages in the diagnosis of children at low months of age, while MRI has outstanding advantages in the diagnosis of children at high months of age. MRI combined with ultrasound and X-ray can significantly improve the diagnostic accuracy of DDH and provide objective data support for the clinical treatment of children.
Highlights
Developmental dysplasia of the hip (DDH) in children is the most common hip disease in pediatric orthopedics
This study explored the application value of MRI combined with X-ray and ultrasound in the diagnosis of DDH in children
Early diagnosis, early treatment, and timely adjustment of the treatment plans play a vital role in the later growth of the children. erefore, the clinical diagnosis of DDH is inseparable from the support of imaging data from high-frequency ultrasound, X-ray, and MRI. ough there are many related comparative studies at present, these three methods are highly flexible when applied in the diagnosis of infants and young children with DDH, and no complete and effective application plan has been formed
Summary
Developmental dysplasia of the hip (DDH) in children is the most common hip disease in pediatric orthopedics. Still occupying a large proportion, many DDH children do not receive timely treatment. It can be seen that early diagnosis is the key to guiding clinical decision-making and obtaining good prognosis, and imaging examination is the main method to determine DDH at present. Ultrasound, X-ray, and MRI are the main methods for clinical diagnosis of DDH in children. Ere are many studies on the three examination methods applied in the diagnosis of DDH, but no unified and effective imaging diagnosis scheme has been formed. This study explored the application value of MRI combined with X-ray and ultrasound in the diagnosis of DDH in children
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