La Réparation en «pull out» transtibial des lésions de la racine postérieure du ménisque médial restaure la rotation physiologique du ménisque médial sur un genou fléchi

Translated title of the contribution: Transtibial pullout repair of medial meniscus posterior root tear restores physiological rotation of the tibia in the knee-flexed position

Y. Okazaki, T. Furumatsu, Y. Kodama, T. Hino, Y. Kamatsuki, S. Masuda, S. Miyazawa, Hirosuke Endo, T. Tetsunaga, K. Yamada, T. Ozaki

Research output: Contribution to journalArticle

Abstract

Background: Medial meniscus posterior root tear (MMPRT) results in joint overloading and degenerative changes in the knee. Favorable clinical outcomes have been reported after transtibial pullout repair of MMPRT. To date, however, in vivo tibial rotational changes before and after root repair remain poorly understood. The purpose of this study was to investigate postoperative changes in tibial rotation following MMPRT pullout repair. Hypothesis: Pathological external rotation in the knee-flexed position is caused by MMPRT and is reduced after transtibial pullout repair. Patients and methods: Fifteen patients who underwent MMPRT pullout repair and 7 healthy volunteers were included. Magnetic resonance imaging examinations were performed in the 10° and 90° knee-flexed positions. The angles between the surgical epicondylar axis and a line between the medial border of the patellar tendon and the apex of the medial tibial spine were measured. Baseline was defined as a line lying at a right angle to the other, and a value was positive and negative when the tibia rotated internally and externally, respectively. Results: In the volunteer's normal knees, tibial internal rotation was +1.00° ± 3.27° at 10° flexion and +4.14° ± 3.46° at 90° flexion. In the MMPRT preoperative knees, tibial internal rotation was +1.07° ± 3.01° at 10° flexion and +1.27° ± 2.96° at 90° flexion. In the postoperative knees, tibial internal rotation was +1.60° ± 2.85° at 10° flexion and +4.33° ± 2.89° at 90° flexion. Discussion: This study demonstrates discontinuity of the MM posterior root may induce a pathological external rotation of the tibia during knee flexion and that MMPRT pullout repair reduces the pathological external rotation of the tibia in the knee-flexed position. Level of evidence: III, comparative retrospective study.

Original languageFrench
JournalRevue de Chirurgie Orthopedique et Traumatologique
DOIs
Publication statusAccepted/In press - Jan 1 2018

Fingerprint

Tibial Meniscus
Tibia
Tears
Knee
Healthy Volunteers
Patellar Ligament
Spine
Retrospective Studies
Joints
Magnetic Resonance Imaging

Keywords

  • Magnetic resonance imaging
  • Medial meniscus
  • Posterior root tear
  • Tibial rotation
  • Transtibial pullout repair

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

@article{ecedd438249941c5948746e7bbf53298,
title = "La R{\'e}paration en «pull out» transtibial des l{\'e}sions de la racine post{\'e}rieure du m{\'e}nisque m{\'e}dial restaure la rotation physiologique du m{\'e}nisque m{\'e}dial sur un genou fl{\'e}chi",
abstract = "Background: Medial meniscus posterior root tear (MMPRT) results in joint overloading and degenerative changes in the knee. Favorable clinical outcomes have been reported after transtibial pullout repair of MMPRT. To date, however, in vivo tibial rotational changes before and after root repair remain poorly understood. The purpose of this study was to investigate postoperative changes in tibial rotation following MMPRT pullout repair. Hypothesis: Pathological external rotation in the knee-flexed position is caused by MMPRT and is reduced after transtibial pullout repair. Patients and methods: Fifteen patients who underwent MMPRT pullout repair and 7 healthy volunteers were included. Magnetic resonance imaging examinations were performed in the 10° and 90° knee-flexed positions. The angles between the surgical epicondylar axis and a line between the medial border of the patellar tendon and the apex of the medial tibial spine were measured. Baseline was defined as a line lying at a right angle to the other, and a value was positive and negative when the tibia rotated internally and externally, respectively. Results: In the volunteer's normal knees, tibial internal rotation was +1.00° ± 3.27° at 10° flexion and +4.14° ± 3.46° at 90° flexion. In the MMPRT preoperative knees, tibial internal rotation was +1.07° ± 3.01° at 10° flexion and +1.27° ± 2.96° at 90° flexion. In the postoperative knees, tibial internal rotation was +1.60° ± 2.85° at 10° flexion and +4.33° ± 2.89° at 90° flexion. Discussion: This study demonstrates discontinuity of the MM posterior root may induce a pathological external rotation of the tibia during knee flexion and that MMPRT pullout repair reduces the pathological external rotation of the tibia in the knee-flexed position. Level of evidence: III, comparative retrospective study.",
keywords = "Magnetic resonance imaging, Medial meniscus, Posterior root tear, Tibial rotation, Transtibial pullout repair",
author = "Y. Okazaki and T. Furumatsu and Y. Kodama and T. Hino and Y. Kamatsuki and S. Masuda and S. Miyazawa and Hirosuke Endo and T. Tetsunaga and K. Yamada and T. Ozaki",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.rcot.2018.11.005",
language = "French",
journal = "Revue de Chirurgie Orthopedique et Traumatologique",
issn = "1877-0517",
publisher = "Elsevier Masson",

}

TY - JOUR

T1 - La Réparation en «pull out» transtibial des lésions de la racine postérieure du ménisque médial restaure la rotation physiologique du ménisque médial sur un genou fléchi

AU - Okazaki, Y.

AU - Furumatsu, T.

AU - Kodama, Y.

AU - Hino, T.

AU - Kamatsuki, Y.

AU - Masuda, S.

AU - Miyazawa, S.

AU - Endo, Hirosuke

AU - Tetsunaga, T.

AU - Yamada, K.

AU - Ozaki, T.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Background: Medial meniscus posterior root tear (MMPRT) results in joint overloading and degenerative changes in the knee. Favorable clinical outcomes have been reported after transtibial pullout repair of MMPRT. To date, however, in vivo tibial rotational changes before and after root repair remain poorly understood. The purpose of this study was to investigate postoperative changes in tibial rotation following MMPRT pullout repair. Hypothesis: Pathological external rotation in the knee-flexed position is caused by MMPRT and is reduced after transtibial pullout repair. Patients and methods: Fifteen patients who underwent MMPRT pullout repair and 7 healthy volunteers were included. Magnetic resonance imaging examinations were performed in the 10° and 90° knee-flexed positions. The angles between the surgical epicondylar axis and a line between the medial border of the patellar tendon and the apex of the medial tibial spine were measured. Baseline was defined as a line lying at a right angle to the other, and a value was positive and negative when the tibia rotated internally and externally, respectively. Results: In the volunteer's normal knees, tibial internal rotation was +1.00° ± 3.27° at 10° flexion and +4.14° ± 3.46° at 90° flexion. In the MMPRT preoperative knees, tibial internal rotation was +1.07° ± 3.01° at 10° flexion and +1.27° ± 2.96° at 90° flexion. In the postoperative knees, tibial internal rotation was +1.60° ± 2.85° at 10° flexion and +4.33° ± 2.89° at 90° flexion. Discussion: This study demonstrates discontinuity of the MM posterior root may induce a pathological external rotation of the tibia during knee flexion and that MMPRT pullout repair reduces the pathological external rotation of the tibia in the knee-flexed position. Level of evidence: III, comparative retrospective study.

AB - Background: Medial meniscus posterior root tear (MMPRT) results in joint overloading and degenerative changes in the knee. Favorable clinical outcomes have been reported after transtibial pullout repair of MMPRT. To date, however, in vivo tibial rotational changes before and after root repair remain poorly understood. The purpose of this study was to investigate postoperative changes in tibial rotation following MMPRT pullout repair. Hypothesis: Pathological external rotation in the knee-flexed position is caused by MMPRT and is reduced after transtibial pullout repair. Patients and methods: Fifteen patients who underwent MMPRT pullout repair and 7 healthy volunteers were included. Magnetic resonance imaging examinations were performed in the 10° and 90° knee-flexed positions. The angles between the surgical epicondylar axis and a line between the medial border of the patellar tendon and the apex of the medial tibial spine were measured. Baseline was defined as a line lying at a right angle to the other, and a value was positive and negative when the tibia rotated internally and externally, respectively. Results: In the volunteer's normal knees, tibial internal rotation was +1.00° ± 3.27° at 10° flexion and +4.14° ± 3.46° at 90° flexion. In the MMPRT preoperative knees, tibial internal rotation was +1.07° ± 3.01° at 10° flexion and +1.27° ± 2.96° at 90° flexion. In the postoperative knees, tibial internal rotation was +1.60° ± 2.85° at 10° flexion and +4.33° ± 2.89° at 90° flexion. Discussion: This study demonstrates discontinuity of the MM posterior root may induce a pathological external rotation of the tibia during knee flexion and that MMPRT pullout repair reduces the pathological external rotation of the tibia in the knee-flexed position. Level of evidence: III, comparative retrospective study.

KW - Magnetic resonance imaging

KW - Medial meniscus

KW - Posterior root tear

KW - Tibial rotation

KW - Transtibial pullout repair

UR - http://www.scopus.com/inward/record.url?scp=85056759051&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056759051&partnerID=8YFLogxK

U2 - 10.1016/j.rcot.2018.11.005

DO - 10.1016/j.rcot.2018.11.005

M3 - Article

AN - SCOPUS:85056759051

JO - Revue de Chirurgie Orthopedique et Traumatologique

JF - Revue de Chirurgie Orthopedique et Traumatologique

SN - 1877-0517

ER -