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J Arthroplasty. 2012 Aug;27(7):1310-5. doi: 10.1016/j.arth.2011.10.031. Epub 2011 Dec 23.

The validity of self-report as a technique for measuring short-term complications after total hip arthroplasty in a joint replacement registry.

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  • 1Hospital for Special Surgery, Department of Orthopaedic Surgery, Division of Adult Reconstruction and Joint Replacement, NY, USA.


This study evaluated concordance between self-reports and surgeon assessments of short-term complications. A total of 3976 primary total hip arthroplasty patients consented for an institutional registry (5/2007-12/2008); 3186 (80.1%) completed a 6-month survey; 137 (4.4%) reported deep venous thrombosis, pulmonary embolism, major bleeding, fracture, or dislocation. Patients reporting complications were called. Positive predictive values and 95% confidence intervals (95% CI) for patient self-report were measured, using surgeon assessment for comparison: pulmonary embolism, 88.9% (95% CI, 78.4%-99.4%); dislocation, 81.1% (95% CI, 75.9%-86.5%); fracture, 73.7% (95% CI, 63.8%-83.5%); deep venous thrombosis, 69.7% (95% CI, 61.9%-77.5%); major bleeding, 32.0% (95% CI, 19.4%-44.5%); any bleeding, 88.0% (95% CI, 75.3%-99.9%). Of 97 confirmed complications, 64.95% presented to outside institutions. Registry data on self-reported complications may overcome limitations of traditional methods, but data should be interpreted cautiously. Concordance was high for PE and dislocation but low for major bleeding.

Copyright © 2012 Elsevier Inc. All rights reserved.

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