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J Knee Surg 2021; 34(12): 1337-1348
DOI: 10.1055/s-0040-1709135
Original Article

Evaluation of Meniscal Tissue after Meniscal Repair Using Ultrahigh Field MRI

Beate Stelzeneder
1   Division of Trauma Surgery, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
,
Bernhard Michael Trabauer
1   Division of Trauma Surgery, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
2   Landeskliniken Holding Korneuburg-Stockerau, Stockerau, Austria
,
Silke Aldrian
1   Division of Trauma Surgery, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
,
David Stelzeneder
3   Department of Orthopaedics and Trauma Surgery, Hanusch-Krankenhaus, Vienna, Austria
4   Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
,
Vladimir Juras
5   High Field MR Center, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
6   Department of Imaging Methods, Institute of Measurement Science, Bratislava, Slovakia
,
Christian Albrecht
1   Division of Trauma Surgery, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
7   I. Orthopaedic Department, Orthopaedic Hospital Speising GmbH, Vienna, Austria
,
Stefan Hajdu
1   Division of Trauma Surgery, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
,
Patrick Platzer
8   Department of Trauma Surgery and Sports Traumatology, University Hospital St. Poelten, St. Poelten, Austria
,
Siegfried Trattnig
5   High Field MR Center, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
9   Christian Doppler Laboratory for Clinical Molecular MR Imaging, Vienna, Austria
10   Austrian Cluster for Tissue Regeneration, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
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Funding This study has received funding by Austrian Science Fund (FWF) KLI541-B30.
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Abstract

The study evaluates the meniscal tissue after primary meniscal suturing using 7-Tesla (T) magnetic resonance imaging with T2* mapping at 6 and 12 months after surgery to investigate the differences between repaired meniscal tissue and healthy meniscal tissue in the medial and lateral compartment. This prospective study included 11 patients (9m/2f) with a mean age of 30.6 years (standard deviation 9.0). Patients with a meniscal tear that was treated arthroscopically with meniscus suturing, using an all-inside technique, were included. All patients and seven healthy volunteers were imaged on a 7-T whole-body system. T2* mapping of the meniscus was applied on sagittal slices. Regions-of-interest were defined manually in the red and white zone of each medial and lateral meniscus to measure T2*-values. In the medial posterior and medial anterior horn similar T2*-values were measured in the red and white zone at 6- and 12-month follow-up. Compared with the control group higher T2*-values were found in the repaired medial meniscus. After 12-months T2*-values decreased to normal values in the anterior horn and remained elevated in the posterior horn. In the red zone of the lateral posterior horn a significant decrease in the T2*-values (from 8.2 milliseconds to 5.9 milliseconds) (p = 0.04), indicates successful repair; a tendency toward a decrease in the white zone between the 6 and 12 months follow-up was observed. In the red zone of the lateral anterior horn the T2*-values decreased significantly during follow-up and in the white zone of the lateral anterior horn T2*-values were comparable. In comparison to the control group higher T2*-values were measured at 6-months; however, the T2*-values showed comparable values in the repaired lateral meniscus after 12 months. The T2* mapping results of the current study indicated a better healing response of the red zone of the lateral posterior horn compared with the medial posterior horn.

Keywords

magnetic resonance imaging - meniscus - meniscal repair - T2* mapping

Note

The study was performed at the Department of Orthopedics and Trauma Surgery, Division of Trauma Surgery, Medical University of Vienna.


MRI was performed at the High Field MR Center, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna.




Publikationsverlauf

Eingereicht: 08. Juni 2019

Angenommen: 16. Februar 2020

Artikel online veröffentlicht:
08. April 2020

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