Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
351-02-016 / 351-02-016 ISMRM Abstract

Patellofemoral Cartilage Integrity after Patellar Stabilization with or without Trochleoplasty: a T1ρ and T2 Mapping Study

Primary: Acquisition & Reconstruction - Quantitative Imaging: spine, MSK, others
Secondary: Musculoskeletal - Osteoarthritis
351-02-016 · MSK: Everything, Everywhere, and All at Once · Monday, 11 May, 1:50 PM–3:26 PM · Power Pitch Theatre 1
351-02-016 · MSK: Everything, Everywhere, and All at Once · Monday, 11 May, 1:50 PM–3:26 PM · Power Pitch Theatre 1
Keywords: Surgery Osteoarthritis T2 mapping Knee cartilage T1rho mapping
Accepted
Georg C Feuerriegel1,2, Jakob Ackermann3, Manuel Waltenspül1, Thaddäus Muri4, Tom Hilbert5,6,7, Constantin von Deuster7,8, Daniel Nanz8,9, Reto Sutter1,9, Sandro F Fucentese3, Gabriele Bonanno 7,10,11
1Department of Radiology, Balgrist University Hospital, Zurich, Switzerland
2Department of Radiology and Biomedical Imaging, University of California, Berkeley, United States of America
3Department of Orthopaedics, Balgrist University Hospital, Zurich, Switzerland
4Department of Orthopaedics, Hand- and Trauma Surgery, Stadtspital Zürich, Zürich, Switzerland
5LTS5, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
6Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
7Swiss Innovation Hub, Siemens Healthineers International AG, Lausanne, Switzerland
8Swiss Center for Musculoskeletal Imaging (SCMI), Balgrist Campus AG, Zurich, Switzerland
9Medical Faculty, University of Zurich, Zurich, Switzerland
10Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland
11Magnetic Resonance Methodology, Institute of Diagnostic and Interventional Neuroradiology, Bern, Switzerland
Presenting Author: Gabriele Bonanno

Synopsis

Motivation:
Goals:
Approach:
Results:
Full abstract & presentation

The full text, figures, and any recorded presentation for this abstract are not shown here. Log in if you are a member or registered attendee with access.

Full abstracts, figures, and presentations for Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition are available to registered attendees. This content becomes freely available to the public roughly two years after the meeting.

To request or purchase access, contact the ISMRM Central Office at info@ismrm.org.

Log in

References

1. Dejour H, Walch G, Nove-Josserand L, Guier C. Factors of patellar instability: an anatomic radiographic study. Knee Surg Sports Traumatol Arthrosc 1994;2(1):19-26.
2. Jungmann PM, Tham SC, Liebl H, Nevitt MC, McCulloch CE, Lynch J, Link TM. Association of trochlear dysplasia with degenerative abnormalities in the knee: data from the Osteoarthritis Initiative. Skeletal Radiol 2013;42(10):1383-1392.
3. Ackermann J, Feuerriegel GC, Vlachopoulos L, Fucentese SF. Influence of Sulcus-Deepening Trochleoplasty on Patellofemoral Cartilage Integrity in Patients With Severe Trochlear Dysplasia at Short-term to Midterm Follow-up: A Case-Control Study. Orthop J Sports Med 2025;13(4):23259671251326052.
4. Argentieri EC, Burge AJ, Potter HG. Magnetic Resonance Imaging of Articular Cartilage within the Knee. J Knee Surg 2018;31(2):155-165.
5. Le J, Peng Q, Sperling K. Biochemical magnetic resonance imaging of knee articular cartilage: T1rho and T2 mapping as cartilage degeneration biomarkers. Ann N Y Acad Sci 2016;1383(1):34-42.
6. Dejour D RP, Le Coultre B. Patellar pain and instability : a classification. (in French). Méd Hyg ; 56 : 1466-1471 1998.
7. Noyes FR, Stabler CL. A system for grading articular cartilage lesions at arthroscopy. Am J Sports Med 1989;17(4):505-513.
8. Fucentese SF, Zingg PO, Schmitt J, Pfirrmann CW, Meyer DC, Koch PP. Classification of trochlear dysplasia as predictor of clinical outcome after trochleoplasty. Knee Surg Sports Traumatol Arthrosc 2011;19(10):1655-1661.
9. Hilbert T, Sumpf TJ, Weiland E, Frahm J, Thiran JP, Meuli R, Kober T, Krueger G. Accelerated T(2) mapping combining parallel MRI and model-based reconstruction: GRAPPATINI. J Magn Reson Imaging 2018;48(2):359-368.
10. Bonanno G, Hilbert T, Liebig P, Kober T. Reproducible high-resolution T1rho maps of the brain in under seven minutes using compressed sensing. Proc Of Intl Soc Mag Reson Med 2021;30:1475
11. ITK. The Insight Segmentation and Registration Toolkit. Available www.itk.org. Accessed 2014 July 29.
12. Lafave MR, Hiemstra L, Kerslake S. Factor Analysis and Item Reduction of the Banff Patella Instability Instrument (BPII): Introduction of BPII 2.0. Am J Sports Med 2016;44(8):2081-2086.
13. Roos EM, Roos HP, Lohmander LS, Ekdahl C, Beynnon BD. Knee Injury and Osteoarthritis Outcome Score (KOOS)--development of a self-administered outcome measure. J Orthop Sports Phys Ther 1998;28(2):88-96.
14. Irrgang JJ, Anderson AF, Boland AL, Harner CD, Kurosaka M, Neyret P, Richmond JC, Shelborne KD. Development and validation of the international knee documentation committee subjective knee form. Am J Sports Med 2001;29(5):600-613.
15. Marx RG, Stump TJ, Jones EC, Wickiewicz TL, Warren RF. Development and evaluation of an activity rating scale for disorders of the knee. Am J Sports Med 2001;29(2):213-218.
16. Regatte RR, Akella SV, Borthakur A, Kneeland JB, Reddy R. Proteoglycan depletion-induced changes in transverse relaxation maps of cartilage: comparison of T2 and T1rho. Acad Radiol 2002;9(12):1388-1394.
17. Li X, Pai A, Blumenkrantz G, Carballido-Gamio J, Link T, Ma B, Ries M, Majumdar S. Spatial distribution and relationship of T1rho and T2 relaxation times in knee cartilage with osteoarthritis. Magn Reson Med 2009;61(6):1310-1318.
18. Witschey WR, 2nd, Borthakur A, Elliott MA, Mellon E, Niyogi S, Wallman DJ, Wang C, Reddy R. Artifacts in T1 rho-weighted imaging: compensation for B(1) and B(0) field imperfections. J Magn Reson 2007;186(1):75-85.
19. Kaiser D, Gotschi T, Bachmann E, Snedeker JG, Tscholl PM, Fucentese SF. Deepening trochleoplasty may dramatically increase retropatellar contact pressures- a pilot study establishing a finite element model. J Exp Orthop 2022;9(1):76.
20. Ambra LF, Hinckel BB, Arendt EA, Farr J, Gomoll AH. Anatomic Risk Factors for Focal Cartilage Lesions in the Patella and Trochlea: A Case-Control Study. Am J Sports Med 2019;47(10):2444-2453.
21. Dejour DH, de Sanctis EG, Muller JH, Deroche E, Pineda T, Guarino A, Toanen C, Patellofemoral Imaging G. Adapting the Dejour classification of trochlear dysplasia from qualitative radiograph- and CT-based assessments to quantitative MRI-based measurements. Knee Surg Sports Traumatol Arthrosc 2024.

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/351-02-016