Diederichs Chad,  Heath Alana,  Mabee Myles,  Hareendranathan Abhilash,  Zonoobi Dornoosh,  Thompson Adrienne,  Jaremko Jacob

Final Pr. ID: Poster #: SCI-042

Developmental dysplasia of the hip (DDH) is a common congenital problem affecting up to 3% of the the population. If untreated, DDH may lead to hip dislocation and premature osteoarthritis. Current DDH diagnosis is highly operator-dependent as it relies on 2D ultrasound. 3D ultrasound offers more complete, and potentially more reliable, imaging of infant hip geometry. However, it is unclear whether 3D ultrasound images, noisy with artifacts and reconstructed by proprietary algorithms from non-parallel beams, give accurate 3D shape information. We sought to validate the fidelity of acetabular surface models obtained by 3D ultrasound by comparison with those obtained concurrently from MRI. Read More

Authors:  Diederichs Chad , Heath Alana , Mabee Myles , Hareendranathan Abhilash , Zonoobi Dornoosh , Thompson Adrienne , Jaremko Jacob

Keywords:  DDH, 3D ultrasound, MRI, pediatric radiology, hip dysplasia

Nguyen Jie,  Barrera Christian,  Back Susan,  Patel Maya,  Sankar Wudbhav

Final Pr. ID: Paper #: 052

Developmental dysplasia of the hip (DDH) is the leading cause of hip disease in infants. AVN is a potential complication of treatment for DDH, which is traditionally diagnosed on follow-up pelvic radiographs. But classic radiographic findings of AVN may be radiographically-occult for months to years after surgery. To investigate the performance of gadolinium-enhanced magnetic resonance imaging (MRI) for predicting avascular necrosis (AVN) of the femoral head following surgical hip reduction for developmental dysplasia of the hip (DDH) using qualitative and quantitative methods. Read More

Authors:  Nguyen Jie , Barrera Christian , Back Susan , Patel Maya , Sankar Wudbhav

Keywords:  DDH, MRI, AVN

Vo Baotran,  Eklund Meryle,  Collins Heather

Final Pr. ID: Poster #: SCI-005

Developmental dysplasia of the hip (DDH) results from the abnormal development of the acetabulum, femoral head and mechanical instability of the hip joint. DDH often presents at birth, and if diagnosed early and treated successfully, children are able to develop a normal hip joint without functional limitation. If left untreated, DDH can lead to pain and osteoarthritis by early adulthood as well as discrepancy in leg length and functional disability. DDH risk factors include breech position in utero, oligohydramnios, female sex, primigravida, family history of DDH and improper swaddling. While there are recommendation for ultrasound screening in breech infants, only a few studies have dealt with the influence of gestational age on the development of DDH. Optimal timing of hip US and identification of patients who need follow-up are important to reduce unnecessary treatment and to avoid overtreatment. We aim to evaluate whether extremely premature infants (<28 weeks gestational age) warrant ultrasound screening for DDH in the absence of other risk factors. Read More

Authors:  Vo Baotran , Eklund Meryle , Collins Heather

Keywords:  Ultrasound, DDH, hip

Haruno Lee,  Kan J.,  Rivlin Michael,  Rosenfeld Scott,  Shenava Vinitha,  Zhu Huirong,  Schallert Erica

Final Pr. ID: Poster #: SCI-037

SPICA MRI with gadolinium contrast administration is routinely performed after closed reduction for the treatment of developmental dysplasia of the hip (DDH). Quantifying the degree of femoral head enhancement and abduction angles are routinely performed to identify and stratify those patients who may be at risk for epiphyseal osteonecrosis. The purpose of our study is to evaluate predictors for epiphyseal osteonecrosis based on percentage enhancement and abduction angles evaluated based on SPICA MRI. Read More

Authors:  Haruno Lee , Kan J. , Rivlin Michael , Rosenfeld Scott , Shenava Vinitha , Zhu Huirong , Schallert Erica

Keywords:  spica mri, ddh, osteonecrosis

Wee Tracee,  Potts James,  Schaeffer Emily,  Mulpuri Kishore,  Bray Heather

Final Pr. ID: Paper #: 067

Several organizations have recommended ultrasound (US) screening for Developmental Dysplasia of the Hip (DDH) in infants with risk factors to facilitate early detection and treatment of the disease, and mitigate long-term morbidity. However, there is still debate on the value of screening US, particularly the dynamic stress component. The goal of our study was to evaluate the predictive value of selective screening hip US of infants with risk factors for detection of DDH requiring treatment, including the value of dynamic stress imaging. Read More

Authors:  Wee Tracee , Potts James , Schaeffer Emily , Mulpuri Kishore , Bray Heather

Keywords:  DDH, ultrasound