Quantitative scintigraphic evaluation of total knee arthroplasties: a feasibility study
| Autor: | M Brambilla, A De Consoli, P Fornara, E. Rizzo, Mario Cannas, G. M. Sacchetti, M. Rudoni, E Inglese, F. Ghisellini |
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| Rok vydání: | 1996 |
| Předmět: |
musculoskeletal diseases
Male medicine.medical_specialty medicine.medical_treatment Radiography Periprosthetic Reference range Technetium Tc 99m Medronate Scintigraphy Prosthesis Asymptomatic Sensitivity and Specificity Postoperative Complications medicine Humans Orthopedics and Sports Medicine Femur Tibia Radionuclide Imaging Aged Aged 80 and over medicine.diagnostic_test business.industry Reproducibility of Results General Medicine Middle Aged musculoskeletal system Prosthesis Failure Feasibility Studies Surgery Female Radiology medicine.symptom business Knee Prosthesis Follow-Up Studies |
| Zdroj: | Clinical orthopaedics and related research. (325) |
| ISSN: | 0009-921X |
| Popis: | For the development and validation of a quantitative approach to the analysis of bone scans after total knee arthroplasty, 39 consecutive patients with 40 prostheses (6 males, 33 females; mean age, 70 years) were scheduled for clinical, radiographic, and scintigraphic examination ranging from 9 to 90 months after surgery. Twenty-seven total knee arthroplasties were considered to be asymptomatic and 13 symptomatic according to the clinical and radiographic findings. Significant differences were found for 99mTc-methylene diphosphonate uptake for femur and tibia and between symptomatic and asymptomatic patients. A reference range was determined for radionuclide uptake in the periprosthetic bone of the 27 asymptomatic total knee arthroplasties; this range was then used to identify loose total knee arthroplasties among the 13 symptomatic knees. With a clinical and radiographic followup performed 1 year after scintigraphy as a standard of comparison, a sensitivity of 88% (7/8) and a specificity of 100% (5/5) was demonstrated. These preliminary results suggest the feasibility of a quantitative approach to the scintigraphic evaluation of total knee arthroplasties after the first postsurgical year. |
| Databáze: | OpenAIRE |
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