Does swaddling influence developmental dysplasia of the hip?: An experimental study of the traditional straight-leg swaddling model in neonatal rats

The Journal of Bone and Joint Surgery. American Volume
Enbo WangKang Wang

Abstract

The overall effect of swaddling has been controversial for centuries. Its positive effect on the psychological development of the infant has popularized it in European and North American countries, but its negative effect on the development of the hip is of great concern. In our experiment, the influence of straight-leg swaddling in an animal model was observed radiographically and histologically. One hundred and twelve neonatal rats were divided into a control group and three experimental groups that were swaddled with use of surgical tape in a manner simulating the human practice for the first five days of life (early swaddling), the second five days (late swaddling), and the first ten days (prolonged swaddling). Hip dislocation and subluxation were evaluated on anteroposterior pelvic radiographs, and histological studies were performed to further observe the morphology of the hips. Rats in the prolonged swaddling group had the highest prevalence of hip dysplasia (thirty-six of forty-four), followed by the early swaddling group (twenty-one of forty-four). Most of the dysplastic hips in the prolonged swaddling group were dislocated, whereas subluxation dominated in the late swaddling group. Differences between the sexes were s...Continue Reading

References

Oct 3, 2007·Pediatrics·Bregje E van SleuwenMonique P L'Hoir
Jan 2, 2008·Pediatrics·Susan T Mahan, James R Kasser

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Citations

Oct 20, 2012·The Journal of Membrane Biology·Sukriye Ilkay GunerBarıs Kaki
Sep 6, 2013·International Orthopaedics·Dahang ZhaoLuan Li
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Feb 15, 2020·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Xianglu JiEnbo Wang
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