title: Digital imaging is not superior to film-screen imaging for the detection of periprosthetic osteolysis around total knee arthroplasties.
abstract: Our aim was to compare the assessment of periprosthetic osteolysis around total knee arthroplasties using digital images against film-screen images. Simulated osteolytic lesions were created around 3 cadaveric total knee arthroplasties images acquired using fluoroscopic-assisted radiography and Computed Tomography. Three surgeons reviewed the film-screen images (AP/Lateral, Oblique, and Computed Tomography (CAT)) and the same images digitally. Combinations of 2 or more images that included the AP/Lateral views had superior performance in both film-screen and digital imaging to AP/Lateral views alone, except for the digital AP/Lateral/OBL combination. Lesion detection and volume appreciation were superior for film versus digital assessment for most angles. The addition of obliques to assessment using digital imaging improved performance, but film-screen remained superior to digital imaging for assessment of periprosthetic osteolysis.
authors.affiliation: Department of Orthopaedic Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.
authors.forename: Mario G T
authors.initials: MG
authors.lastname: Zotti
authors.affiliation: Department of Orthopaedic Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.
authors.forename: David G
authors.initials: DG
authors.lastname: Campbell
authors.affiliation: Department of Orthopaedic Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.
authors.forename: Richard
authors.initials: R
authors.lastname: Woodman
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects; D002102:Cadaver; D005471:Fluoroscopy; D006801:Humans; D007595:Joint Prosthesis / Q000009:adverse effects*; D010014:Osteolysis / Q000000981:diagnostic imaging* / Q000209:etiology; D014057:Tomography, X-Ray Computed
keywords: detection; diagnostic; digital; film; osteolysis