uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Neonatal hip instability: a prospective comparison of clinical examination and anterior dynamic ultrasound
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology.
2008 (English)In: Acta radiologica (Stockholm, Sweden : 1987), ISSN 1600-0455, Vol. 49, no 2, 212-9 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Ultrasound is increasingly being used to complement the clinical examination in assessing neonatal hip instability. The clinical examination, although highly sensitive in detecting hip instability, can lead to considerable overtreatment. PURPOSE: To compare anterior dynamic ultrasound and clinical examination in the assessment of neonatal hip instability and regarding treatment rates. MATERIAL AND METHODS: 536 newborn infants (out of a population of 18,031) were selected, on the basis of a combination of risk factors, clinical signs of hip instability or ambiguous clinical findings, to undergo an anterior dynamic ultrasound examination of the hip, by a method developed by our group. This examination, performed by one out of seven experienced examiners, was compared with the standard clinical hip examination conducted by one of four pediatric orthopedic surgeons. The clinical examination was carried out both prior to and within a few hours after the ultrasound examination. RESULTS: The clinical examination diagnosed 81.7% of the hips as normal, 14.5% as unstable, and 3.8% as dislocatable or dislocated. With the dynamic ultrasound method, the corresponding figures were 87.8%, 10.4%, and 1.8%, respectively. Use of the criteria of the clinical examination resulted in treatment of 147 infants. Using the dynamic ultrasound examination as a criterion meant that 87 infants would receive treatment. The calculated treatment rate was 0.85% when based on the clinical stress test and 0.49% when based on the dynamic ultrasound. CONCLUSION: The dynamic ultrasound results reduced the treatment rate by over 40% when used as a basis for the decision regarding treatment.

Place, publisher, year, edition, pages
2008. Vol. 49, no 2, 212-9 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-105316DOI: 10.1080/02841850701775014PubMedID: 18300149OAI: oai:DiVA.org:uu-105316DiVA: diva2:221075
Available from: 2009-06-03 Created: 2009-06-03 Last updated: 2012-03-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Jorulf, Håkan
By organisation
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 171 hits
ReferencesLink to record
Permanent link

Direct link