Clinical study of anterior hip ultrasound (van Douveren’s method)-assisted Pavlik harness
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To investigate the use of anterior hip ultrasound (van Douveren’s method)-assisted Pavlik harness in developmental dysplasia of the hip (DDH).
Weekly anterior hip ultrasound scanning was performed in children with fixed Pavlik harness to detect whether hip reduction was achieved with the help of harness (the superior ramus of the pubis, the acetabulum, the femoral head, and the femoral neck being depicted in one plane indicated concentric reduction of the hip), and the stability of the reduction was checked by ultrasonography.
A total of 39 child patients and 51 dysplastic hips were successfully detected by anterior ultrasound, and stable reduction was achieved in 37 hips (15 Graf type D and 22 type III) right after the help of Pavlik harness, in seven hips (6 type III and 1 type IV) two weeks after the help of Pavlik harness; the remaining seven hips (2 type III and 5 type IV) failed to reach stable reduction after two weeks.
The anterior hip ultrasound (van Douveren’s method) can be used to detect the reduction and stability of hip after Pavlik harness treatment in children with DDH. The majority of Graf type D and III hips can achieve a stable concentric reduction right after the help of Pavlik harness, while severely dislocated type IV hips have a low success rate for harness treatment, and abandonment of harness therapy should be considered in early stage.
KeywordsUltrasonography Anterior ultrasound Children Developmental dysplasia of the hip
This work was supported by the Shanghai Science and Technology Commission (no. 16411971600).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
This study was approved by the Ethical Committee of the Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine.
Informed consent was obtained from all parents of children included in the study.
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