Knee Flexion-induced Translation of Pullout Sutures Used in the Repair of Medial Meniscus Posterior Root Tears

Haowei Xue, Takayuki Furumatsu, Yuki Okazaki, Takaaki Hiranaka, Keisuke Kintaka, Masataka Fujii, Ximing Zhang, Toshifumi Ozaki

Research output: Contribution to journalArticlepeer-review

Abstract

Medial meniscus posterior root tears (MMPRTs) have recently attracted considerable interest in orthopedics. To date, no in vivo human study has investigated suture translation changes in repaired MMPRTs with different degrees of knee flexion. This study examined suture translation at various degrees of knee flexion in 30 patients undergoing medial meniscus posterior root repair using the modified Mason-Allen suture technique between August 2016 and September 2017. Intraoperatively, sutures were provisionally fixed to an isometric positioner at the tibial site of the desired meniscal attachment, and the suture translation was measured at 0°, 30°, 60°, and 90° of knee flexion. The results showed significant increases in mean suture translation at the knee flexion positions from 0° to 30°, 30° to 60°, and 60° to 90° (p<0.01 for all). Our findings indicate that surgeons should carefully assess the degree of knee flexion at the moment when the meniscus is refixed by surgical sutures.

Original languageEnglish
Pages (from-to)147-152
Number of pages6
JournalActa medica Okayama
Volume75
Issue number2
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • arthroscopic repair
  • knee flexion
  • medial meniscus
  • posterior root tear
  • suture translation

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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