このエントリーをはてなブックマークに追加
ID 59980
Author
Hiranaka, Takaaki Department of Orthopaedic Surgery, Okayama University Hospital
Furumatsu, Takayuki Department of Orthopaedic Surgery, Okayama University Hospital Kaken ID publons
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 publons researchmap
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.
Keywords
Medial meniscus
Posterior root tear
Bilateral injury
Predictor
Medial tibial slope
Sensitivity and specificity
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.
Published Date
2020-06-01
Publication Title
Knee Surgery, Sports Traumatology, Arthroscopy
Publisher
Springer
ISSN
0942-2056
NCID
AA10973641
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
File Version
Author
PubMed ID
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1007/s00167-020-06079-1