OBJECTIVE: We evaluated safety and potential diagnostic value of magnetic resonance (MR) imaging of the knee treated with medial unicompartmental arthroplasty (MUA). METHODS: The treated knee of 8 patients who underwent MUA was studied with four different 1.5-T MR sequences. Two radiologists independently evaluated eleven anatomical items using a score from 0 (not assessable) to 3 (completely assessable). The sum of the scores for each sequence was divided by the potential maximal sum, obtaining a percentage visibility index (PVI) for each item. RESULTS: No adverse effect was reported during or within 30 min after the exam. Posterior cruciate ligament was unseen in all patients by both observers. The following PVIs were reported for the remaining ten items: femoral-patellar relationship 83-100%; femoral-patellar cartilage 92-100%; Hoffa's fat pad 75-92%; patellar ligament 79-100%; lateral meniscus 100%; femoral-tibial lateral joint 100%; lateral collateral ligament 96-100%; anterior cruciate ligament 54-83%; femoral-tibial lateral cartilages 92-100%; posterolateral corner 100%. Agreement between readers was found in 331/352 (94%) evaluations (k=0.74-0.78). CONCLUSIONS: MR imaging after MUA offers a safe and reproducible evaluation of residual knee anatomy except for cruciate ligament, and can be used to follow-up these patients.
OBJECTIVE: We evaluated safety and potential diagnostic value of magnetic resonance (MR) imaging of the knee treated with medial unicompartmental arthroplasty (MUA). METHODS: The treated knee of 8 patients who underwent MUA was studied with four different 1.5-T MR sequences. Two radiologists independently evaluated eleven anatomical items using a score from 0 (not assessable) to 3 (completely assessable). The sum of the scores for each sequence was divided by the potential maximal sum, obtaining a percentage visibility index (PVI) for each item. RESULTS: No adverse effect was reported during or within 30 min after the exam. Posterior cruciate ligament was unseen in all patients by both observers. The following PVIs were reported for the remaining ten items: femoral-patellar relationship 83-100%; femoral-patellar cartilage 92-100%; Hoffa's fat pad 75-92%; patellar ligament 79-100%; lateral meniscus 100%; femoral-tibial lateral joint 100%; lateral collateral ligament 96-100%; anterior cruciate ligament 54-83%; femoral-tibial lateral cartilages 92-100%; posterolateral corner 100%. Agreement between readers was found in 331/352 (94%) evaluations (k=0.74-0.78). CONCLUSIONS: MR imaging after MUA offers a safe and reproducible evaluation of residual knee anatomy except for cruciate ligament, and can be used to follow-up these patients.
Authors: Christoph A Agten; Filippo Del Grande; Sandro F Fucentese; Samuel Blatter; Christian W A Pfirrmann; Reto Sutter Journal: Eur Radiol Date: 2015-01-28 Impact factor: 5.315
Authors: Luca Maria Sconfienza; Alberto Signore; Victor Cassar-Pullicino; Maria Adriana Cataldo; Olivier Gheysens; Olivier Borens; Andrej Trampuz; Klaus Wörtler; Nicola Petrosillo; Heinz Winkler; Filip M H M Vanhoenacker; Paul C Jutte; Andor W J M Glaudemans Journal: Eur Radiol Date: 2019-06-27 Impact factor: 5.315
Authors: Basil Suter; Enrique Testa; Patrick Stämpfli; Praveen Konala; Helmut Rasch; Niklaus F Friederich; Michael T Hirschmann Journal: BMC Med Imaging Date: 2015-03-20 Impact factor: 1.930
Authors: Federico Bruno; Antonio Barile; Francesco Arrigoni; Antonella Laporta; Anna Russo; Marina Carotti; Alessandra Splendiani; Ernesto Di Cesare; Carlo Masciocchi Journal: Acta Biomed Date: 2018-01-19
Authors: Alberto Signore; Luca Maria Sconfienza; Olivier Borens; Andor W J M Glaudemans; Victor Cassar-Pullicino; Andrej Trampuz; Heinz Winkler; Olivier Gheysens; Filip M H M Vanhoenacker; Nicola Petrosillo; Paul C Jutte Journal: Eur J Nucl Med Mol Imaging Date: 2019-01-26 Impact factor: 9.236