Silvia Mariani1, Alice La Marra2, Francesco Arrigoni3, Stefano Necozione4, Alessandra Splendiani5, Ernesto Di Cesare6, Antonio Barile7, Carlo Masciocchi8. 1. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: mari.silvia@hotmail.it. 2. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: alicelm@hotmail.it. 3. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: arrigoni.francesco@gmail.com. 4. University of L'Aquila, Department of Life, Health & Environmental Sciences, L'Aquila, Italy. Electronic address: stefano.necozione@cc.univaq.it. 5. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: alessandra.splendiani@cc.univaq.it. 6. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: ernesto.dicesare@cc.univaq.it. 7. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: antonio.barile@cc.univaq.it. 8. University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, S. Salvatore Hospital, L'Aquila, Coppito, Italy. Electronic address: carlo.masciocchi@cc.univaq.it.
Abstract
OBJECTIVE: Aim of our work was to compare standard and weight-bearing WB-MRI to define their contribution in unmasking patello-femoral (PF) maltracking and to define what measurement of patellar alignment is the most reliable. METHODS: We prospectively collected 95 non consecutive patients, clinically divided into 2 groups: group A (the control group), including 20 patients (negative for patellar maltracking), and group B including 75 patients (positive for patellar maltracking). The patients underwent a dedicated 0.25 T MRI, in supine and WB position, with knee flexion of 12-15°. The following measurements were performed: Insall-Salvati index (IS), lateral patellar displacement (LPD), lateral patello-femoral angle (LPA) and lateral patellar tilt (LPT). Quantitative and qualitative statistical analyses were performed to compare the results obtained before and after WB-MRI. Measurements were subsequently performed on both groups. RESULTS: Group A patients showed no statistically significant variations at all measurements both on standard and WB-MRI. On the basis of measurements made on standard MRI, group B patients were divided into group B1 (23 patients) (negative or positive at 1 measurement) and group B2 (52 patients) (positive at 2 or more measurements). After WB-MRI, group B1 patients were divided into group B1a (6 patients), in case they remained positive at 0/1 measurement, and group B1b (17 patients), in case they became positive at 2 or more measurements. All group B2 patients confirmed to be positive at 2 or more measurements at WB-MRI. Quantitative statistical analysis showed that LPT and LPA were the most reproducible and clinically useful measurements. Qualitative statistical analysis performed on standard and WB-MRI demonstrated that LPT was the best predictive measurement. CONCLUSIONS: This study demonstrates both the high diagnostic value of WB-MRI in unmasking PF-maltracking and the best predictive value of LPT measurement.
OBJECTIVE: Aim of our work was to compare standard and weight-bearing WB-MRI to define their contribution in unmasking patello-femoral (PF) maltracking and to define what measurement of patellar alignment is the most reliable. METHODS: We prospectively collected 95 non consecutive patients, clinically divided into 2 groups: group A (the control group), including 20 patients (negative for patellar maltracking), and group B including 75 patients (positive for patellar maltracking). The patients underwent a dedicated 0.25 T MRI, in supine and WB position, with knee flexion of 12-15°. The following measurements were performed: Insall-Salvati index (IS), lateral patellar displacement (LPD), lateral patello-femoral angle (LPA) and lateral patellar tilt (LPT). Quantitative and qualitative statistical analyses were performed to compare the results obtained before and after WB-MRI. Measurements were subsequently performed on both groups. RESULTS: Group A patients showed no statistically significant variations at all measurements both on standard and WB-MRI. On the basis of measurements made on standard MRI, group B patients were divided into group B1 (23 patients) (negative or positive at 1 measurement) and group B2 (52 patients) (positive at 2 or more measurements). After WB-MRI, group B1 patients were divided into group B1a (6 patients), in case they remained positive at 0/1 measurement, and group B1b (17 patients), in case they became positive at 2 or more measurements. All group B2 patients confirmed to be positive at 2 or more measurements at WB-MRI. Quantitative statistical analysis showed that LPT and LPA were the most reproducible and clinically useful measurements. Qualitative statistical analysis performed on standard and WB-MRI demonstrated that LPT was the best predictive measurement. CONCLUSIONS: This study demonstrates both the high diagnostic value of WB-MRI in unmasking PF-maltracking and the best predictive value of LPT measurement.
Authors: M Zappia; R Capasso; D Berritto; N Maggialetti; C Varelli; G D'Agosto; M T Martino; M Carbone; L Brunese Journal: Musculoskelet Surg Date: 2017-02-14
Authors: Federico Bruno; Francesco Arrigoni; Silvia Mariani; Alessandra Splendiani; Ernesto Di Cesare; Carlo Masciocchi; Antonio Barile Journal: Radiol Med Date: 2019-04-04 Impact factor: 3.469
Authors: A Barile; F Bruno; S Mariani; F Arrigoni; L Brunese; M Zappia; A Splendiani; E Di Cesare; C Masciocchi Journal: Musculoskelet Surg Date: 2017-02-14
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Authors: Federico Bruno; Francesco Arrigoni; Nicola Maggialetti; Raffaele Natella; Alfonso Reginelli; Ernesto Di Cesare; Luca Brunese; Andrea Giovagnoni; Carlo Masciocchi; Alessandra Splendiani; Antonio Barile Journal: Gland Surg Date: 2019-04
Authors: Flavia Cobianchi Bellisari; Luigi De Marino; Francesco Arrigoni; Silvia Mariani; Federico Bruno; Pierpaolo Palumbo; Camilla De Cataldo; Ferruccio Sgalambro; Nadia Catallo; Luigi Zugaro; Ernesto Di Cesare; Alessandra Splendiani; Carlo Masciocchi; Andrea Giovagnoni; Antonio Barile Journal: Radiol Med Date: 2021-05-18 Impact factor: 3.469
Authors: Marina Carotti; Vittoria Galeazzi; Francesca Catucci; Marcello Zappia; Francesco Arrigoni; Antonio Barile; Andrea Giovagnoni Journal: Acta Biomed Date: 2018-01-19
Authors: Femke F Schröder; Corine E Post; Sjoerd M van Raak; Frank F J Simonis; Frank-Christiaan B M Wagenaar; Rianne M H A Huis In't Veld; Nico Verdonschot Journal: J Exp Orthop Date: 2020-07-31