Three-dimensional magnetic resonance imaging of the anterolateral ligament of the knee: an evaluation of intact and anterior cruciate ligament–deficient knees from the scientific anterior cruciate ligament network international (SANTI) Study Group
| Autor: | Bertrand Sonnery-Cottet, Hiroki Watanabe, Camilo Partezani Helito, Adnan Saithna, Kana Sasaki, Tatsuo Banno, Kenta Yokosawa, Yudo Hachiya, Koichi Muramatsu |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Anterolateral ligament Adolescent Knee Joint Anterior cruciate ligament Young Adult 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Double-Blind Method Predictive Value of Tests Humans Medicine Delayed imaging Orthopedics and Sports Medicine Anterior Cruciate Ligament 030222 orthopedics medicine.diagnostic_test business.industry Anterior Cruciate Ligament Injuries Intraobserver reliability Reproducibility of Results Magnetic resonance imaging 030229 sport sciences Middle Aged medicine.disease musculoskeletal system Magnetic Resonance Imaging ACL injury medicine.anatomical_structure Case-Control Studies Predictive value of tests Ligaments Articular Female business Nuclear medicine human activities |
| ISSN: | 0749-8063 |
| Popis: | Purpose To determine the visualization rate of the anterolateral ligament (ALL) in uninjured and anterior cruciate ligament (ACL)–deficient knees using 3-dimensional (3D) magnetic resonance imaging (MRI) and to characterize the spectrum of ALL injury observed in ACL-deficient knees, as well as determine the interobserver and intraobserver reliability of a 3D MRI classification of ALL injury. Methods A total of 100 knees (60 ACL deficient and 40 uninjured) underwent 3D MRI. The ALL was evaluated by 2 blinded orthopaedic surgeons. The ALL was classified as follows: type A, continuous, clearly defined low-signal band; type B, warping, thinning, or iso-signal changes; and type C, without clear continuity. The comparison between imaging performed early after ACL injury ( 1 month) was evaluated, as was intraobserver and interobserver reliability. Results Complete visualization of the ALL was achieved in all uninjured knees. In the ACL-deficient group, 24 knees underwent early imaging, with 87.5% showing evidence of ALL injury (3 normal, or type A, knees [12.5%], 18 type B [75.0%], and 3 type C [12.5%]). The remaining 36 knees underwent delayed imaging, with 55.6% showing evidence of injury (16 type A [44.4%], 18 type B [50.0%], and 2 type C [5.6%]). The difference in the rate of injury between the 2 groups was significant (P = .03). Multivariate analysis showed that the delay from ACL injury to MRI was the only factor (negatively) associated with the rate of injury to the ALL. Interobserver reliability and intraobserver reliability of the classification of ALL type were good (κ = 0.86 and κ = 0.93, respectively). Conclusions Three-dimensional MRI allows full visualization of the ALL in all normal knees. The rate of injury to the ALL in acutely ACL-injured knees identified on 3D MRI is higher than previous reports using standard MRI techniques. This rate is significantly higher than the rate of injury to the ALL identified on delayed imaging of ACL-injured knees. Level of Evidence Level IV, diagnostic, case-control study. |
| Databáze: | OpenAIRE |
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