Highlights
- •Medial meniscus posterior root repair led to good clinical outcomes.
- •Posterior anchoring decreased posterior suture translation during knee flexion.
- •No correlation was observed between suture translation and medial meniscus morphology.
- •Addition of posterior anchoring with root repair may lead to better clinical outcomes.
Abstract
Background
The medial meniscus (MM) translates posteriorly and extrudes severely from the medial
tibial plateau (MTP) during knee flexion in the MM posterior root tear (PRT) knee.
Transtibial pullout repair of the MMPRT has been performed to regulate MM extrusion.
This study aimed to evaluate pullout suture translation during knee flexion before
and after posterior anchoring during pullout repair. We hypothesized that suture translation
after posterior anchoring would be significantly decreased relative to that before
posterior anchoring.
Methods
Thirty-five patients who underwent MM posterior root repair were prospectively investigated.
Pullout repair was performed using two cinch sutures (outer and inner sutures) and
posterior anchoring through the MM posterior horn and an additional bone tunnel on
the MTP. The translation of the outer suture from 0° to 90° of knee flexion was measured
and compared before and after posterior anchoring intraoperatively. The MM morphologic
features were measured using preoperative magnetic resonance imaging, and the correlation
between these values and outer suture translation was evaluated.
Results
The average outer suture translation after posterior anchoring (1.6 ± 1.5 mm) was
significantly decreased relative to that before posterior anchoring (2.5 ± 1.7 mm,
P < 0.01). No significant correlations were observed between the MM morphological
features and outer suture translation.
Conclusions
The posterior anchoring method with an MM posterior root repair is useful in decreasing
posterior translation of the pullout suture during knee flexion, which might have
an advantage in preventing suture pullout from the repaired MM, leading to good clinical
outcomes.
Keywords
Abbreviations:
MM (Medial meniscus), MMME (Medial meniscus medial extrusion), MMPRT (Medial meniscus posterior root tear), MMBW (Medial meniscus body width), MMPH (Medial meniscus posterior height), MMPW (Medial meniscus posterior width), MRI (Magnetic resonance imaging), MTP (Medial tibial plateau), PRT (Posterior root tear)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: February 24, 2022
Accepted:
February 7,
2022
Received in revised form:
November 12,
2021
Received:
July 29,
2021
Identification
Copyright
© 2022 Elsevier B.V. All rights reserved.
