scholarly journals Comparison of two simple stitches and modified Mason-Allen suture for medial meniscus posterior root tear based on the progression of meniscal posterior extrusion: A retrospective cohort study

2021 ◽  
Vol 29 (3) ◽  
pp. 230949902110495
Author(s):  
Keisuke Kintaka ◽  
Takayuki Furumatsu ◽  
Yuki Okazaki ◽  
Shin Masuda ◽  
Takaaki Hiranaka ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Medial Meniscus ◽  
Cartilage Degeneration ◽  
Knee Extension ◽  
Posterior Root ◽  
Open Magnetic Resonance Imaging ◽  
Significant Difference ◽  
Pullout Repair ◽  
The Difference ◽  
Repair Techniques

Purpose: Medial meniscus (MM) posterior root (PR) tear leads to severe MM posterior extrusion (PE), resulting in rapid knee cartilage degeneration. MMPR repairs are recommended to reduce MMPE, especially during knee flexion. However, the difference in MMPE between different repair techniques remains unknown. This study aimed to investigate preoperative and postoperative MMPE following several pullout repair techniques. We hypothesized that a technique using two simple stitches (TSS) would be more useful than FasT-Fix-dependent modified Mason-Allen suture (F-MMA) to prevent the progression of MMPE in knee extension. Methods: This retrospective study included 35 patients who underwent MMPR repair. To compare MMPE, patients were divided into two groups according to the use of F-MMA while grasping the posterior capsule and TSS without grasping it. Open magnetic resonance imaging was performed at 10° and 90° knee flexion preoperatively, and at 3 and 12 months postoperatively, and the MMPE of both groups was evaluated. Results: A significant difference was observed between preoperative and 3-month postoperative MMPE at 90° knee flexion in both groups ( p < .01). A significant difference was observed in 3- and 12-month postoperative MMPE at 10° knee flexion between both groups ( p = .04/.02), whereas no significant difference in the preoperative MMPE at 10° knee flexion was observed between them ( p = .45). Conclusions: Both repairs were found to be useful to reduce MMPE in knee flexion. Further, F-MMA repair increased MMPE in knee extension, unlike TSS repair. These findings suggest that TSS might have more advantages for load distribution when standing or walking.

Preoperative morphologic changes of the medial meniscus correlate with suture translations during knee flexion in pullout repair of medial meniscus posterior root tear

The Knee ◽  
2021 ◽  
Vol 28 ◽  
pp. 346-353
Author(s):  
Takaaki Hiranaka ◽  
Takayuki Furumatsu ◽  
Yuki Okazaki ◽  
Yuya Kodama ◽  
Yusuke Kamatsuki ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Medial Meniscus ◽  
Posterior Root ◽  
Root Tear ◽  
Posterior Root Tear ◽  
Pullout Repair ◽  
Morphologic Changes

scholarly journals Muscular Force Patterns during Level Walking in ACL-Deficient Patients with a Concomitant Medial Meniscus Tear

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Hongshi Huang ◽  
Wei Yin ◽  
Shuang Ren ◽  
Yuanyuan Yu ◽  
Si Zhang ◽  
...  
Keyword(s):  
Stance Phase ◽  
Medial Meniscus ◽  
Rectus Femoris ◽  
Cartilage Degeneration ◽  
Meniscus Tear ◽  
Muscular Force ◽  
Acl Deficiency ◽  
Level Walking ◽  
Significant Difference ◽  
Acl Deficient

Background. The abnormal knee joint motion patterns caused by anterior cruciate ligament (ACL) deficiency are thought to be associated with articular cartilage degeneration. High rates of meniscus tear combined with ACL rupture are observed, and these knees suffer a higher risk of early cartilage degeneration. Research Question. This study investigated lower limb muscular force patterns of ACL-deficient knees with a concomitant medial meniscus tear. Methods. 12 volunteers and 22 patients were recruited, including 12 patients with isolated ACL deficiency (ACLD) and 10 ACL-deficient patients with a concomitant medial meniscus tear (ACLDM). Level walking data at a self-selected speed were collected before surgery. Then, a musculoskeletal dynamic analysis system, AnyBody, was applied to simulate tibiofemoral flexion moments and muscle forces. Results. Our results indicate that the tibiofemoral peak flexion and extension moments in ACLDM patients are significantly lower than in controls. The rectus femoris force in ACLDM patients was significantly lower than in isolated ACL-deficient patients and the controls during mid and terminal stance phase, while no significant difference was found in hamstring and vastus force. Additionally, the gastrocnemius force in ACL-deficient patients both with and without a medial meniscus tear was lower than in controls during mid-stance phase. Significance. The ACLDM patients had lower peak tibiofemoral flexion moment, lower gastrocnemius force in mid-stance phase, and lower rectus femoris force during the mid and terminal stance phase. These results may help clinicians to better understand the muscle function and gait pattern in ACL-deficient patients with a concomitant medial meniscus tear.

scholarly journals Augmentation of the Pullout Repair of a Medial Meniscus Posterior Root Tear by Arthroscopic Centralization

2017 ◽  
Vol 6 (4) ◽  
pp. e1335-e1339 ◽  
Author(s):  
Hideyuki Koga ◽  
Toshifumi Watanabe ◽  
Masafumi Horie ◽  
Hiroki Katagiri ◽  
Koji Otabe ◽  
...  
Keyword(s):  
Medial Meniscus ◽  
Posterior Root ◽  
Root Tear ◽  
Posterior Root Tear ◽  
Pullout Repair

scholarly journals Criterion-Related Validity of Knee Joint-Position-Sense Measurement Using Image Capture and Isokinetic Dynamometry

2015 ◽  
Vol 24 (1) ◽  
Author(s):  
Nicola Relph ◽  
Lee Herrington
Keyword(s):  
Knee Joint ◽  
Knee Flexion ◽  
Cost Effective ◽  
Absolute Error ◽  
Knee Extension ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Image Capture ◽  
Significant Difference

Context: Clinicians require portable, valid, and cost-effective methods to monitor knee joint-position-sense (JPS) ability. Objective: To examine the criterion-related validity of image-capture JPS measures against an isokinetic-dynamometer (IKD) procedure. Design: Random crossover design providing a comparison of knee JPS measures from image capture and IKD procedures. Participants: 10 healthy participants, 5 female, age 28.0 ± 13.29 y, mass 60.3 ± 9.02 kg, height 1.65 ± 0.07 m, and 5 male, 29.6 ± 10.74 y, mass 73.6 ± 5.86 kg, height 1.75 ± 0.07 m. Main Outcome Measures: The dependent variables were absolute error scores (AES) provided by 2 knee directions (flexion and extension). The independent variables were the method (image capture and IKD). Results: There was no significant difference between clinical and IKD AED into knee-extension data (P = .263, r = 0.55). There was a significant difference between clinical and IKD AES into knee-flexion data (P = .016, r =.70). Conclusions: Analysis of photographic images to assess JPS measurements using knee flexion is valid against IKD techniques. However, photo-analysis measurements provided a lower error score using knee-extension data and thus may provide an optimal environment to produce maximal knee JPS acuity. Therefore, clinicians do not need expensive equipment to collect representative JPS ability.

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