Two simple stitches for medial meniscus posterior root repair prevents the progression of meniscal extrusion and reduces
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ORIGINAL ARTICLE
Two simple stitches for medial meniscus posterior root repair prevents the progression of meniscal extrusion and reduces intrameniscal signal intensity better than modified Mason‑Allen sutures Yuki Okazaki1 · Takayuki Furumatsu1 · Takaaki Hiranaka1 · Yuya Kodama1 · Yusuke Kamatsuki1 · Keisuke Kintaka1 · Toshifumi Ozaki1 Received: 11 August 2020 / Accepted: 10 November 2020 © Springer-Verlag France SAS, part of Springer Nature 2020
Abstract Purpose Medial meniscus posterior root tears (MMPRTs) can cause severe medial extrusion of the medial meniscus (MMME) and the progression of knee degenerative changes, inducing a high signal intensity of the meniscus on magnetic resonance imaging (MRI). Although MMME and intrameniscal signal intensity (IMSI) reportedly decreased within 3 months after MMPRT repair, no previous studies have reported these changes after a 1-year follow-up. This study aimed to investigate the 1-year postoperative changes in MMME and IMSI on MRI after using different suture techniques. Methods Overall, 33 patients with MMPRT were evaluated, 22 underwent FasT-Fix-dependent modified Mason–Allen suture (F-MMA) repair, and 11 underwent two simple stitches (TSS) repair. MRI examinations were performed preoperatively and 1 year postoperatively. MMME and IMSI were determined using MRI. Results A significant decrease in postoperative MMME was observed in the TSS group (4.1 ± 1.0) relative to that in the F-MMA group (5.1 ± 1.4, P = 0.03). A significant decrease in postoperative IMSI (0.75 ± 0.14) was observed relative to preoperative IMSI in the TSS group (P
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