A model-based approach to measure the minimum joint space width of total knee replacements in standard radiographs

• Published in: Journal of biomechanics Vol. 45; no. 12; pp. 2171 - 2175
• Main Authors: van IJsseldijk, E.A, Valstar, E.R, Stoel, B.C, Nelissen, R.G.H.H, Kaptein, B.L
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 09.08.2012; Elsevier; Elsevier Limited
• Subjects: Accuracy; Arthroplasty, Replacement, Knee - methods; Biological and medical sciences; Biomedical materials; Computerized, statistical medical data processing and models in biomedicine; Equipment Failure Analysis - methods; Humans; Joint replacement surgery; Knee Joint - diagnostic imaging; Knee Prosthesis; Male; Measurement methods; Medical sciences; Methods; Minimum joint space width; Model-based analysis; Models and simulation; Models, Biological; Observer Variation; Orthopedic surgery; Phantoms, Imaging; Physical Medicine and Rehabilitation; Polyethylene; Polyethylene wear measurements; Prostheses; Prosthesis Design; Radiographs; Radiography; Reproducibility; Sensors; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Surgical implants; Total knee arthroplasty; Wear; Model-based analysis; Total knee arthroplasty; Minimum joint space width; Polyethylene wear measurements; Human; Polyethylene; Radiodiagnosis; Exploration; Modeling; Joint space; Biomechanics; Radiography; Orthopedic surgery; Treatment; Reproducibility; Wear; Biomedical engineering

Abstract Excessive wear in total knee arthroplasty is detected by measuring the minimum joint space width (mJSW) in anterioposterior radiographs. The accuracy of conventional measurement methods is limited and can be improved using model-based techniques. In this study, the model-based wear measurem...