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BMC Musculoskeletal Disorders

, 15:384

Epidemiology of musculoskeletal disorders


BackgroundComplete or almost complete recording of reoperations is essential to enable a correct interpretation of data in arthroplasty registers. The completeness of recordings due to infection is unknown in the Swedish Hip Arthroplasty Register SHAR. We therefore used a combination of data from the Swedish Prescribed Drug Register SPDR and studies of medical records to validate the data of reoperations due to infection in the SHAR.

MethodsAll patients registered for a primary Total Hip Replacement THR in the SHAR between July 1, 2005 and December 31, 2008 were selected for the study 45,531 patients with 49,219 THRs and were matched with the SPDR. All patients with a minimum of 4 weeks of continuous outpatient antibiotic treatment within 2 years after their primary THR 1,989 patients, with 2,219 THRs were selected for a medical records review to find the THRs reoperated due to infection.

Results599 1.3% of the THRs had been reoperated within 2 years after the index operation and in 47.4% of these the prosthesis had been revised or extracted. 400 of the THRs were registered for a reoperation in the SHAR resulting in a completeness of 67%.

ConclusionsThe completeness of registration due to early infection after THR questions whether the SHAR reoperation data can be used in order to evaluate changes in postoperative infection rates.

KeywordsArthroplasty Register Validity Completeness Hip replacement Reoperation Infection AbbreviationsTHRTotal Hip Replacement

SHARSwedish Hip Arthroplasty Register

SPDRSwedish Prescribed Drug Register

NPRSwedish National Patient Register.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2474-15-384 contains supplementary material, which is available to authorized users.

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Autor: J Viktor Lindgren - Max Gordon - Per Wretenberg - Johan Kärrholm - Göran Garellick


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