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The distance between the tibial tunnel aperture and meniscal root attachment is correlated with meniscal healing status following transtibial pullout repair for medial meniscus posterior root tear.

Authors :
Hiranaka T
Furumatsu T
Kamatsuki Y
Miyazawa S
Okazaki Y
Masuda S
Okazaki Y
Kodama Y
Ozaki T
Source :
The Knee [Knee] 2020 Jun; Vol. 27 (3), pp. 899-905. Date of Electronic Publication: 2020 Apr 02.
Publication Year :
2020

Abstract

Background: To investigate the relationship between tibial tunnel aperture location and postoperative meniscal healing.<br />Methods: We enrolled 25 patients (20 women and five men, mean age: 62.5 years) who underwent transtibial pullout repair for medial meniscus (MM) posterior root repair. The expected MM posterior root attachment center (AC) and tibial tunnel center (TC) were identified using three-dimensional computed tomography, and the minimum AC-TC distance was calculated. The meniscal healing status following transtibial pullout repair was assessed by second-look arthroscopy (mean postoperative period: 15 months) using a previously reported scoring system (meniscal healing score; range: 0-10). The association between AC-TC distance and meniscal healing score was investigated using univariate linear regression models. The optimal AC-TC distance cut-off for improved MM healing score (≥7) was determined using receiver operating characteristic analysis.<br />Results: The AC-TC distance and meniscal healing score were significantly associated (y = -0.42x + 9.48, R <superscript>2</superscript>  = 0.342; P = 0.002), with the optimum AC-TC distance being 5.8 mm. This cut-off had a sensitivity of 100% and specificity of 53%.<br />Conclusions: This study demonstrates that AC-TC distance is significantly correlated with postoperative meniscal healing. Anatomical repair within 5.8 mm of the AC may result in improved meniscal healing.<br />Competing Interests: Declaration of competing interest The authors have no conflicts of interest to declare.<br /> (Copyright © 2020 Elsevier B.V. All rights reserved.)

Details

Language :
English
ISSN :
1873-5800
Volume :
27
Issue :
3
Database :
MEDLINE
Journal :
The Knee
Publication Type :
Academic Journal
Accession number :
32249020
Full Text :
https://doi.org/10.1016/j.knee.2020.02.025