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The Bone & Joint Journal
Vol. 95-B, Issue 6 | Pages 846 - 850
1 Jun 2013
Price KR Dove R Hunter JB

Most centres in the United Kingdom adopt a selective screening programme for developmental dysplasia of the hip (DDH) based on repeated clinical examination and selective ultrasound examination. The Newborn Infant Physical Examination protocol implemented in 2008 recommends a first examination at birth and then a second and final examination at six to ten weeks of age. Due to concerns over an increase in late presentations we performed a retrospective review of our 15-year results to establish if late presentation increases treatment requirements. Of children presenting before six weeks of age, 84% were treated successfully with abduction bracing, whereas 86% of children presenting after ten months eventually required open reduction surgery. This equates to a 12-fold increase in relative risk of requiring open reduction following late presentation. Increasing age at presentation was associated with an increase in the number of surgical procedures, which are inevitably more extensive and complex, with a consequent increased in cost per patient. The implementation of an opportunistic examination at three to five months could help to reduce the unintended consequences of the Newborn Infant Physical Examination programme.

Cite this article: Bone Joint J 2013;95-B:846–50.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_24 | Pages 2 - 2
1 May 2013
Price K Dove R Hunter JB
Full Access

Aim

The objective was to assess whether late presentation of DDH leads to an increase in treatment magnitude and cost.

Method

This was a retrospective review of prospectively collected data from our hip instability clinic database. All patients presenting to our hip instability clinic that required any form of treatment for DDH between 1990 and 2005 were included. Children were grouped according to age at presentation and then treatment requirements were reviewed. Average costs were calculated based on procedures performed.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 106 - 106
1 Jan 2013
Price K Dove R Hunter J
Full Access

Objective

The objective was to assess whether late presentation of DDH leads to an increase in treatment magnitude and cost.

Methods

This was a retrospective review of prospectively collected data from our hip instability clinic database. All patients presenting to our hip instability clinic that required any form of treatment for DDH between 1990 and 2005 were included. Children were grouped according to age at presentation and then treatment requirements were reviewed. Average costs were calculated based on procedures performed.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_III | Pages 522 - 523
1 Aug 2008
Williams K Dove R Twining P Hunter J
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Purpose of study: To assess whether a plane x-ray at five months is needed in a DDH screening program.

Method: Between 1990 and 2004 we operated selective hip screening, including ultrasound. Hips screened as normal had an X-ray at 5 months, initially instituted to cover the ultrasound learning curve. These were reported by a consultant radiologist and referred if thought abnormal. For the purposes of this study the notes, scans and X-rays of all patients referred at 5 months were reviewed.

Results: In Nottingham there were approximately 108,500 births between 1990 and 2004. Of these 11,425 were referred for ultrasound scan. 53 were referred to orthopaedics following the x-ray at 5 months. 47 of these had a complete data set. Of these 47 children, 30 (64%) were watched, 9 (19%) had arthrograms only, 5 (11%) had adductor tenotomy and application of a hip spica. One (2%) child had Pavlik harness treatment and 2 (4%) had a femoral osteotomy.

Graf’s alpha angles and percentage cover were reviewed from the original ultrasounds, many of which were of poor quality. This demonstrated that there was less than 50% cover for 14/30 (47%) who were watched, for 6/9 (78%) who had arthrograms, for 1/1 (100%) treated by harness, for 4/5 (80%) treated with adductor tenotomy and hip spica and for 2/2 (100%) requiring surgery. Alpha angles less than 60 degrees did not predict the need for intervention. There were no late cases from the group that had X-rays classed as normal at 5 months.

Conclusions: The importance of measuring head cover was established and is now routine in the hip instability clinic. It was clear that a large population had received unnecessary X-rays. X-rays are now only performed if US at 6 weeks reveals a low alpha angle or less than 50% cover.