What is the incidence of late detection of developmental dysplasia of the hip in England?

Broadhurst, C., Rhodes, A., Harper, P., Perry, D. C., Clarke, N. M.P. and Aarvold, A. (2019) What is the incidence of late detection of developmental dysplasia of the hip in England? The Bone & Joint Journal, 101-B (3), 281-287. (doi:10.1302/0301-620X.101B3.BJJ-2018-1331.R1).

Abstract

AIMS: The aim of this study was to establish the incidence of developmental dysplasia of the hip (DDH) diagnosed after one-year of age in England, stratified by age, gender, year, and region of diagnosis. PATIENTS AND METHODS: A descriptive observational study was performed by linking primary and secondary care information from two independent national databases of routinely collected data: the United Kingdom Clinical Practice Research Datalink and Hospital Episode Statistics. The study examined all children from 1 January 1990 to 1 January 2016 who had a new first diagnostic code for DDH aged between one and eight years old. RESULTS: The incidence of late-diagnosed DDH was 1.28 per 1000 live births. Within the study population, 754 children were identified with a diagnosis of DDH after one-year of age. Of all late diagnoses, 536 (71.1%) were detected between one to two years of age. There were 608 female patients (80.6%) and 146 male patients (19.4%), giving a female-to-male ratio of 4.2:1. Distribution was evenly spread throughout England. CONCLUSION: The incidence of late-diagnosed DDH has not been reduced from that reported 35 years ago, prior to the introduction of the national selective screening programme for DDH. Cite this article: Bone Joint J 2019;101-B:281-287.

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