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Assessment of the Relationship between the Shape of the Lateral Meniscus and the Risk of Extrusion Based on MRI Examination of the Knee Joint
Abstract
Background Meniscus extrusion is a serious and relatively frequent clinical problem. For this reason the role of different risk factors for this pathology is still the subject of debate. The goal of this study was to verify the results of previous theoretical work, based on the mathematical models, regarding a relationship between the cross-section shape of the meniscus and the risk of its extrusion. Materials and Methods Knee MRI examination was performed in 77 subjects (43 men and 34 women), mean age 34.99 years (range: 18–49 years), complaining of knee pain. Patients with osteoarthritic changes (grade 3 and 4 to Kellgren classification), varus or valgus deformity and past injuries of the knee were excluded from the study. A 3-Tesla MR device was used to study the relationship between the shape of the lateral meniscus (using slope angle, meniscus-cartilage height and meniscus-bone angle) and the risk of extrusion. Results Analysis revealed that with values of slope angle and meniscus-bone angle increasing by one degree, the risk of meniscus extrusion raises by 1.157 and 1.078 respectively. Also, an increase in meniscus-cartilage height by 1 mm significantly elevates the risk of extrusion. At the same time it was demonstrated that for meniscus-bone angle values over 42 degrees and slope angle over 37 degrees the risk of extrusion increases significantly. Conclusions This was the first study to demonstrate a tight correlation between slope angle, meniscus-bone angle and meniscus-cartilage height values in the assessment of the risk of lateral meniscus extrusion. Insertion of the above parameters to the radiological assessment of the knee joint allows identification of patients characterized by an elevated risk of development of this pathology.
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Authors (9)
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Arkadiusz Szarmach
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Piotr Luczkiewicz
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Monika Skotarczak
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Pawel Winklewski
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Jaroslaw Dzierzanowski
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Maciej Piskunowicz
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Edyta Szurowska
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Bogusław Baczkowski
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1371/journal.pone.0159156
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
PLOS ONE
no. 11,
edition 7,
pages 1 - 12,
ISSN: 1932-6203 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Szarmach A., Luczkiewicz P., Skotarczak M., Kaszubowski M. F., Winklewski P., Dzierzanowski J., Piskunowicz M., Szurowska E., Baczkowski B.: Assessment of the Relationship between the Shape of the Lateral Meniscus and the Risk of Extrusion Based on MRI Examination of the Knee Joint// PLOS ONE. -Vol. 11, iss. 7 (2016), s.1-12
- DOI:
- Digital Object Identifier (open in new tab) 10.1371/journal.pone.0159156
- Verified by:
- Gdańsk University of Technology
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