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자료유형
학술저널
저자정보
Jesse W.P. Kuiper (Department of Orthopedic Surgery Noordwest Hospital Group Alkmaar The Netherlands) Steven J. Verberne (Department of Orthopedic Surgery Noordwest Hospital Group Alkmaar The Netherlands) Pim W. van Egmond (Department of Orthopedic Surgery Elisabeth-TweeSteden Hospital Tilburg The Netherlands) Karin Slot (Department of Orthopedic Surgery Noordwest Hospital Group Alkmaar The Netherlands) Olivier P.P. Temmerman (Department of Orthopedic Surgery Noordwest Hospital Group Alkmaar The Netherlands) Constantijn J. Vos (Department of Orthopedic Surgery Noordwest Hospital Group Alkmaar The Netherlands)
저널정보
대한고관절학회 Hip and Pelvis Hip and Pelvis 제34권 제4호
발행연도
2022.12
수록면
236 - 244 (9page)

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Purpose: The most recent diagnostic criteria for periprosthetic joint infection (PJI) include the use of the alpha defensin (AD) lateral-flow (LF) test, but hip and knee arthroplasties were usually combined in previous studies. This prospective study was designed to examine the accuracy of the AD-LF test for diagnosis of PJI in chronic painful total hip arthroplasties (THA). Materials and Methods: Patients with chronic painful hip arthroplasties were prospectively enrolled between March 2018 and May 2020. Exclusion criteria included acute PJI or an insufficient amount of synovial fluid. The modified Musculoskeletal Infection Society (MSIS) criteria were primarily used for PJI diagnosis. Fifty-seven patients were included in the analysis group. Revision surgery was not performed in 38 patients, for different rea sons (clinical group); these patients remain “Schrödinger’s hips”: in such cases PJI cannot be excluded nor con firmed until you “open the box”. Results: The result of the AD-LF test was positive in nine patients and negative in 48 patients. Six patients were diagnosed with PJI. AD-LF sensitivity (MSIS criteria) was 83% (95% confidence interval [CI] 36-100%) and specificity was 92% (95% CI 81-98%). The positive and negative predictive value were 56% and 98%, respec tively. Conclusion: The AD test is useful in addition to the existing arsenal of diagnostic tools, and can be helpful in the decision-making process. Not all patients with chronical painful THA will undergo revision surgery. Consequently, in order to determine the reliable diagnostic accuracy of this test, future PJI diagnostic studies should include a second arm of “Schrödinger’s hips”

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