Altered signal intensity in the posterior horn of the medial meniscus: an MR finding of questionable significance
| العنوان: | Altered signal intensity in the posterior horn of the medial meniscus: an MR finding of questionable significance |
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| المؤلفون: | F. Khan, J. A. Sproule, P. Nicholson, J. J. Rice, J. P. McElwain |
| المصدر: | Archives of Orthopaedic and Trauma Surgery. 125:267-271 |
| بيانات النشر: | Springer Science and Business Media LLC, 2004. |
| سنة النشر: | 2004 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Adolescent, Physical examination, Knee Injuries, Meniscus (anatomy), Menisci, Tibial, Arthroscopy, medicine, Humans, Orthopedics and Sports Medicine, Retrospective Studies, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, General Medicine, musculoskeletal system, Magnetic Resonance Imaging, Tibial Meniscus Injuries, medicine.anatomical_structure, Orthopedic surgery, Tears, Female, Surgery, Radiology, business, Medial meniscus |
| الوصف: | Introduction MR imaging has emerged as an important modality in the non-invasive evaluation of osseous and soft-tissue structures in the post-traumatic knee. However, it is sometimes impossible to determine with confidence if a focus of high signal intensity in the meniscus is confined to the substance of the meniscus or if it extends to involve the joint surface. This is a critical differentiation because the latter represents meniscal tears that can be found and treated arthroscopically, whereas the former represents degeneration, intrasubstance tears or perhaps normal variants that are not amenable to arthroscopic intervention. The aim of this study was to investigate the occurrence of such borderline findings in relation to the posterior horn of the medial meniscus and to correlate the arthroscopic results. Materials and methods Sixty-four patients with suspected post-traumatic internal derangements of the knee who underwent MR imaging prior to arthroscopy were evaluated retrospectively. There were 48 men and 16 women. Their mean age was 28.2 years. Results Tears of the posterior horn of the medial meniscus were diagnosed unequivocally (grade 3 signal) in 18 patients and equivocally (grade 2/3 signal) in 10 patients. Arthroscopic correlation revealed 16 tears (89%) in the unequivocal group and only 1 tear (10%) in the equivocal group. Conclusion A meniscal tear is unlikely when MR shows a focus of high signal intensity in the posterior horn of the medial meniscus that does not unequivocally extend to involve the inferior or superior joint surface. An appropriate trial of conservative treatment is recommended in such questionable cases. MR is a useful diagnostic tool-however, it should be used selectively, and in conjunction with history and clinical examination in evaluating internal derangements of the knee. |
| تدمد: | 1434-3916 0936-8051 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21596f611a1c10c354a3ee20c5ddb51e https://doi.org/10.1007/s00402-004-0740-z |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....21596f611a1c10c354a3ee20c5ddb51e |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14343916 09368051 |
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