Düppe, Henrik

Tiderius, Carl Johan

Wenger, Daniel

Lund University Publications

LUND UNIVERSITYPO Box 117221 00 Lund+46 46-222 00 00Study Protocol Late Diagnosed Hip DislocationWenger, Daniel; Tiderius, Carl Johan; Düppe, Henrik2019Link to publicationCitation for published version (APA):Wenger, D., Tiderius, C. J., & Düppe, H. (2019). Study Protocol Late Diagnosed Hip Dislocation. Unpublished.Total number of authors:3General rightsUnless other specific re-use rights are stated the following general rights apply:Copyright and moral rights for the publications made accessible in the public portal are retained by the authorsand/or other copyright owners and it is a condition of accessing publications that users recognise and abide by thelegal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private studyor research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portalRead more about Creative commons licenses: https://creativecommons.org/licenses/Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will removeaccess to the work immediately and investigate your claim.Study Protocol – Report from the Swedish DDH Study  1. The Swedish DDH Study  The registry prospectively collects data on every child that is diagnosed with a hip dislocation later than 14 days from birth. Data collection starts 2000-01-01 and includes children born from that date. Data collected includes the patient’s personal identification number, name, age at diagnosis, geographic location, radiographs and clinical follow-up. All orthopaedic departments in Sweden have a designated contact person who is contacted yearly with a request to register any case that occurred during the year. Registration is encouraged to be immediate if a case is diagnosed. Hospitals with subspecialized paediatric orthopaedic surgeons report every year, even if no child was diagnosed during the year. Patients’ parents are informed by the treating orthopaedic surgeon and give informed consent (verbal) prior to registration. Exclusion criteria are: patients not born in Sweden, neuromuscular or teratogenic hip dislocation, and diagnosis before 14 days age but with a failure of primary treatment. The registry was approved by the regional ethical review board in 1999 (LU 578-99). *  2. Study on late diagnosed hip dislocations in the birth cohort from 2000 through 2009  Analysis of all cases from The Swedish DDH Study born from 2000 through 2009. Radiographs are classified according to the Tönnis classification. Missing radiographs are retrieved from the treating hospitals and included. A Tönnis grade of 3 or 4 is considered to be a high dislocation. The number of live births in Sweden during the study period, stratified by year and sex, is used to calculate the incidence of hip dislocation. Data is obtained from Statistics Sweden. A Poisson regression analysis is performed to investigate whether the incidence of hip dislocation changed during the study period. (Approved in 2014, 2014/736.) * The Medical Birth Registry is accessed to obtain data on potential risk factors from the included patients and from randomly selected controls, matched by sex and year of birth, in a 1:10 ratio. Comparisons between cases and controls are performed. Odds ratios (crude and adjusted) are calculated. (Approved in 2017, 2017/244.) *   * Complete applications in Swedish are available from the Regional Ethical Review Board, Lund University, Lund, Sweden. 

Study Protocol Late Diagnosed Hip Dislocation

Abstract

Similar works

Full text

Available Versions

Lund University Publications