Academic Journal
Using three-dimensional isotropic SPACE MRI to detect posterolateral corner injury of the knee.
| Τίτλος: | Using three-dimensional isotropic SPACE MRI to detect posterolateral corner injury of the knee. |
|---|---|
| Συγγραφείς: | Ahn SJ; Department of Radiology, Gachon University, Incheon, Republic of Korea., Jeong YM; Department of Radiology, Gachon University, Incheon, Republic of Korea., Lee BG; Department of Orthopedics, Gachon University, Incheon, Republic of Korea., Sim JA; Department of Orthopedics, Gachon University, Incheon, Republic of Korea., Choi HY; Department of Radiology, Gachon University, Incheon, Republic of Korea., Kim JH; Department of Radiology, Gachon University, Incheon, Republic of Korea., Lee SW; Department of Radiology, Gachon University, Incheon, Republic of Korea leesw1@gilhospital.com. |
| Πηγή: | Acta radiologica (Stockholm, Sweden : 1987) [Acta Radiol] 2016 Oct; Vol. 57 (10), pp. 1251-60. Date of Electronic Publication: 2016 Jan 27. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Sage Country of Publication: England NLM ID: 8706123 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1600-0455 (Electronic) Linking ISSN: 02841851 NLM ISO Abbreviation: Acta Radiol Subsets: MEDLINE |
| Imprint Name(s): | Publication: Dec. 2012- : London : Sage Original Publication: Stockholm, Sweden : Acta Radiologica, [1987- |
| Ιατρικοί όροι (MeSH): | Imaging, Three-Dimensional*, Knee Injuries/*diagnostic imaging , Magnetic Resonance Imaging/*methods, Knee Injuries/surgery ; Adolescent ; Adult ; Aged ; Female ; Humans ; Image Interpretation, Computer-Assisted ; Male ; Middle Aged ; Treatment Outcome |
| Περίληψη: | Background: Reliable magnetic resonance imaging (MRI) diagnosis is important in cases of posterolateral corner (PLC) injury due to the limitations of physical examination in patients with multi-ligament injury. Purpose: To document the appearance of PLC of the knee on three-dimensional (3D) isotropic MR images, and to determine the significance of MRI findings in patients with confirmed posterolateral rotatory instability. Material and Methods: Twenty-five patients that underwent surgery for posterolateral instability, and 25 individuals with normal MRI constituted the study cohort. The PLC appearances (popliteofibular, fabellofibular, arcuate ligaments, popliteomeniscal fascicle) were analyzed using 3D isotropic proton density sequence and routine two-dimensional (2D) MRI. In addition, the "fibular cap" sign was evaluated. Statistical analysis was performed using the Chi-square and McNemar's tests. Results: Thickening of popliteofibular, fabellofibular, arcuate ligaments, and popliteomeniscal fascicle was significantly more frequent in the PLC injury group than in the control group (P < 0.05). The sensitivity and specificity of 3D MRI for popliteofibular, fabellofibular, arcuate ligaments, and popliteomeniscal fascicle injury were 63/92%, 54/100%, 46/100%, and 58/92%, respectively. On comparing 3D and 2D images with respect to injury detectability (grade 3 or 4), both modalities visualized injuries, but 3D detected grade 3 or grade 1 rather than grade 4 or 0, respectively. The fibular cap sign was observed significantly more frequently in PLC group, with 58% sensitivity and 100% specificity, and was better observed by 3D than 2D (P < 0.05). Conclusion: 3D MRI is a valid modality for detecting PLC abnormalities as it visualizes pathologies in each component and exhibits the positive fibular cap sign. (© The Foundation Acta Radiologica 2016.) |
| Contributed Indexing: | Keywords: Posterolateral corner; knee; magnetic resonance imaging (MRI); three-dimensional isotropic imaging |
| Entry Date(s): | Date Created: 20160130 Date Completed: 20170127 Latest Revision: 20170127 |
| Update Code: | 20260130 |
| DOI: | 10.1177/0284185115626470 |
| PMID: | 26823457 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1600-0455 |
|---|---|
| DOI: | 10.1177/0284185115626470 |