MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract
Abstract Purpose The visualization of potentially injured anatomical structures is crucial. Lately the anterolateral ligament (ALL) and the deep structures of the iliotibial tract (ITT) have been of increased clinical interest because of their role as important lateral stabilizers of the knee. The a...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-05-01
|
| Series: | Journal of Experimental Orthopaedics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40634-020-00244-8 |
| _version_ | 1797280401225416704 |
|---|---|
| author | Michael Liebensteiner Armin Runer Christof Kranewitter Philipp Nachtigal Johannes Giesinger Dietmar Dammerer Benjamin Henninger |
| author_facet | Michael Liebensteiner Armin Runer Christof Kranewitter Philipp Nachtigal Johannes Giesinger Dietmar Dammerer Benjamin Henninger |
| author_sort | Michael Liebensteiner |
| collection | DOAJ |
| description | Abstract Purpose The visualization of potentially injured anatomical structures is crucial. Lately the anterolateral ligament (ALL) and the deep structures of the iliotibial tract (ITT) have been of increased clinical interest because of their role as important lateral stabilizers of the knee. The aim of this study was to assess the visibility of the ALL and the deep structures of the ITT using MRI. Good intra- and inter-observer reproducibility was hypothesized. Methods Knee MRI data from patients without ligamentous lesions were retrospectively analyzed by two radiologists at two time points using axial and coronal sequences. The visibility of the different parts of the ALL (femoral, meniscal and tibial part) and of the deep ITT, namely the deep attachments of the ITT to the distal femur and capsulo-osseous layer of the ITT, were determined on a binary (yes/no) basis. Results Seventy-one cases (42 men, 29 women) were studied. Inter-observer agreement was high. Cohen’s kappa was 0.97 for the tibial part of the ALL and 0.76 for the femoral part. For the deep attachments of the ITT to the distal femur Cohen’s kappa was 0.94. For each of the investigated parameters absolute agreement between the observers was at least 88%. Regarding intra-observer agreement Cohen’s kappa was 0.62 for the femoral part of the ALL and 0.85 for the tibial part of the ALL. For the deep attachments of the ITT to the distal femur Cohen’s kappa was 0.94. For each investigated parameter absolute agreement between the two time points was at least 83%. Conclusions The presence of the anterolateral structures of the knee can be determined with substantial inter- and intra-observer agreement using MRI examination. This is applicable for both the ALL and the deep ITT. Level of evidence Diagnostic study – Level III. |
| first_indexed | 2024-03-07T16:40:41Z |
| format | Article |
| id | doaj.art-bde7439ec82e4e5097ec04df2458945a |
| institution | Directory Open Access Journal |
| issn | 2197-1153 |
| language | English |
| last_indexed | 2024-03-07T16:40:41Z |
| publishDate | 2020-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Experimental Orthopaedics |
| spelling | doaj.art-bde7439ec82e4e5097ec04df2458945a2024-03-03T08:36:49ZengWileyJournal of Experimental Orthopaedics2197-11532020-05-01711610.1186/s40634-020-00244-8MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tractMichael Liebensteiner0Armin Runer1Christof Kranewitter2Philipp Nachtigal3Johannes Giesinger4Dietmar Dammerer5Benjamin Henninger6Deptartment of Orthopedic Surgery, Medical University of InnsbruckDeptartment of Trauma Surgery, Medical University of InnsbruckDepartment of Radiology, Medical University of InnsbruckMedical University of InnsbruckInnsbruck Institute of Patient-centered Outcome Research (IIPCOR)Deptartment of Orthopedic Surgery, Medical University of InnsbruckDepartment of Radiology, Medical University of InnsbruckAbstract Purpose The visualization of potentially injured anatomical structures is crucial. Lately the anterolateral ligament (ALL) and the deep structures of the iliotibial tract (ITT) have been of increased clinical interest because of their role as important lateral stabilizers of the knee. The aim of this study was to assess the visibility of the ALL and the deep structures of the ITT using MRI. Good intra- and inter-observer reproducibility was hypothesized. Methods Knee MRI data from patients without ligamentous lesions were retrospectively analyzed by two radiologists at two time points using axial and coronal sequences. The visibility of the different parts of the ALL (femoral, meniscal and tibial part) and of the deep ITT, namely the deep attachments of the ITT to the distal femur and capsulo-osseous layer of the ITT, were determined on a binary (yes/no) basis. Results Seventy-one cases (42 men, 29 women) were studied. Inter-observer agreement was high. Cohen’s kappa was 0.97 for the tibial part of the ALL and 0.76 for the femoral part. For the deep attachments of the ITT to the distal femur Cohen’s kappa was 0.94. For each of the investigated parameters absolute agreement between the observers was at least 88%. Regarding intra-observer agreement Cohen’s kappa was 0.62 for the femoral part of the ALL and 0.85 for the tibial part of the ALL. For the deep attachments of the ITT to the distal femur Cohen’s kappa was 0.94. For each investigated parameter absolute agreement between the two time points was at least 83%. Conclusions The presence of the anterolateral structures of the knee can be determined with substantial inter- and intra-observer agreement using MRI examination. This is applicable for both the ALL and the deep ITT. Level of evidence Diagnostic study – Level III.http://link.springer.com/article/10.1186/s40634-020-00244-8Anterolateral ligamentIliotibial tractIliotibial bandAnterior cruciate ligamentKnee stabilityMagnetic resonance imaging |
| spellingShingle | Michael Liebensteiner Armin Runer Christof Kranewitter Philipp Nachtigal Johannes Giesinger Dietmar Dammerer Benjamin Henninger MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract Journal of Experimental Orthopaedics Anterolateral ligament Iliotibial tract Iliotibial band Anterior cruciate ligament Knee stability Magnetic resonance imaging |
| title | MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| title_full | MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| title_fullStr | MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| title_full_unstemmed | MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| title_short | MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| title_sort | mri visibility of the anterolateral ligament and the deep structures of the iliotibial tract |
| topic | Anterolateral ligament Iliotibial tract Iliotibial band Anterior cruciate ligament Knee stability Magnetic resonance imaging |
| url | http://link.springer.com/article/10.1186/s40634-020-00244-8 |
| work_keys_str_mv | AT michaelliebensteiner mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT arminruner mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT christofkranewitter mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT philippnachtigal mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT johannesgiesinger mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT dietmardammerer mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract AT benjaminhenninger mrivisibilityoftheanterolateralligamentandthedeepstructuresoftheiliotibialtract |