ID | 59980 |
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KSSTA_Tables.pptx
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Author |
Hiranaka, Takaaki
Department of Orthopaedic Surgery, Okayama University Hospital
Okazaki, Yuki
Department of Orthopaedic Surgery, Okayama University Hospital
Yamawaki, Tadashi
Department of Orthopaedic Surgery, Kousei Hospital
Okazaki, Yoshiki
Department of Orthopaedic Surgery, Okayama University Hospital
Kodama, Yuya
Department of Orthopaedic Surgery, Okayama University Hospital
Kamatsuki, Yusuke
Department of Orthopaedic Surgery, Okayama University Hospital
Ozaki, Toshifumi
Department of Orthopaedic Surgery, Okayama University Hospital
Kaken ID
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Abstract | Purpose
Contralateral medial meniscus posterior root tear (MMPRT) can sometimes occur after primary surgeries for MMPRT and lead to unsatisfactory outcomes. The incidence rate and risk factors for contralateral MMPRT have not been well investigated, despite their clinical importance. Therefore, the incidence and predictors of bilateral MMPRT were aimed to be evaluated.
Methods
Fourteen patients with bilateral MMPRT (group B) and 169 patients with unilateral MMPRT (group U) were enrolled in this study. Sex, age, body mass index, time between injury and surgery, and medial tibial slope angle (MTSA) were compared between the groups. MTSA was measured using lateral radiographs.
Results
The incidence rate of bilateral MMPRT was 6.2% among all patients with MMPRTs. Multivariate logistic regression analysis showed that a prolonged time between injury and surgery (odds ratio [OR], 1.0; 95% confidence interval [CI] 1.00–1.01; P < 0.05) and steeper MTSA (OR, 1.85; 95% CI 1.21–2.64; P < 0.01) were significantly associated with the development of bilateral MMPRT. Receiver operating characteristic curve analysis showed that MTSA > 10.0° was associated with bilateral MMPRT, with a sensitivity of 93% and specificity of 69%.
Conclusion
A longer time between injury and surgery and steeper MTSA were risk factors for the development of bilateral MMPRT. Surgeons need to pay close attention to the contralateral knee in addition to the primary injured knees when treating knees with steep MTSA. Besides, early meniscal repair of primary MMPRT would be important to prevent the events of contralateral MMPRT.
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Keywords | Medial meniscus
Posterior root tear
Bilateral injury
Predictor
Medial tibial slope
Sensitivity and specificity
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Note | This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-020-06079-1.
This fulltext is available in June 2021.
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Published Date | 2020-06-01
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Publication Title |
Knee Surgery, Sports Traumatology, Arthroscopy
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Volume | volume29
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Publisher | Springer
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Start Page | 1052
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End Page | 1057
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ISSN | 0942-2056
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NCID | AA10973641
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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File Version | author
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Related Url | isVersionOf https://doi.org/10.1007/s00167-020-06079-1
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