BAckground. Diagnosis of peri-prosthetic infection remains challenging, often requiring a combination of different tests. METHODS: In this prospective, case-control study, the diagnostic accuracy of telethermography was evaluated in a group of seventy patients who had had a total knee replacement and were undergoing a reoperation because of infection or another implant-related problem, after a minimum of one year from implant. RESULTS: An average differential temperature of the affected versus not affected knee of 1.9 °C was observed in infected prosthesis, compared to 0.3 °C in aseptic failures. Considering a normal reference value equal or less than 1.0 °C, telethermography showed an accuracy, sensitivity, specificity, positive and negative predictive value of, respectively: 0.90, 0.89, 0.91, 0.91, 0.88. CONCLUSIONS: Digital telethermography is a reliable option for diagnosing peri-prosthetic knee infection.

Value of digital telethermography for the diagnosis of septic knee prosthesis: a prospective cohort study / C.L. Romanò, R. D'Anchise, M. Calamita, G. Manzi, D. Romanò, V. Sansone. - In: BMC MUSCULOSKELETAL DISORDERS. - ISSN 1471-2474. - 14(2013), pp. 7.1-7.7.

Value of digital telethermography for the diagnosis of septic knee prosthesis: a prospective cohort study

M. Calamita;G. Manzi;V. Sansone
2013

Abstract

BAckground. Diagnosis of peri-prosthetic infection remains challenging, often requiring a combination of different tests. METHODS: In this prospective, case-control study, the diagnostic accuracy of telethermography was evaluated in a group of seventy patients who had had a total knee replacement and were undergoing a reoperation because of infection or another implant-related problem, after a minimum of one year from implant. RESULTS: An average differential temperature of the affected versus not affected knee of 1.9 °C was observed in infected prosthesis, compared to 0.3 °C in aseptic failures. Considering a normal reference value equal or less than 1.0 °C, telethermography showed an accuracy, sensitivity, specificity, positive and negative predictive value of, respectively: 0.90, 0.89, 0.91, 0.91, 0.88. CONCLUSIONS: Digital telethermography is a reliable option for diagnosing peri-prosthetic knee infection.
Body Temperature Regulation; Knee Prosthesis; Aged; Aged, 80 and over; Arthroplasty, Replacement, Knee; Case-Control Studies; Humans; Image Interpretation, Computer-Assisted; Infrared Rays; Middle Aged; Observer Variation; Predictive Value of Tests; Prospective Studies; Prosthesis-Related Infections; Reoperation; Reproducibility of Results; Sensitivity and Specificity; Thermography
Settore MED/33 - Malattie Apparato Locomotore
2013
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/228347
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