Prevalence and effect of medial meniscus tear in elderly persons -the bunkyo health study

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.

Download Full-text

Meniscus tear developed by pulling of the anomalous insertion of medial meniscus on anterior cruciate ligament

Knee Surgery Sports Traumatology Arthroscopy ◽

10.1007/s00167-011-1464-6 ◽

2011 ◽

Vol 19 (10) ◽

Cited By ~ 2

Author(s):

Joon Ho Wang ◽

Andrew K. Wong ◽

James R. Romanowski ◽

Freddie H. Fu

Keyword(s):

Anterior Cruciate Ligament ◽

Medial Meniscus ◽

Cruciate Ligament ◽

Meniscus Tear ◽

Anomalous Insertion ◽

Anterior Cruciate

Download Full-text

Medial and lateral meniscus have a different role in kinematics of the ACL-deficient knee: a systematic review

Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine ◽

10.1136/jisakos-2019-000293 ◽

2019 ◽

Vol 4 (5) ◽

pp. 233-241

Author(s):

Alberto Grassi ◽

Giacomo Dal Fabbro ◽

Stefano Di Paolo ◽

Federico Stefanelli ◽

Luca Macchiarola ◽

...

Keyword(s):

Systematic Review ◽

Medial Meniscus ◽

Lateral Meniscus ◽

Meniscus Tear ◽

Pivot Shift Test ◽

Anterior Tibial ◽

Kinematic Evaluation ◽

Tibial Translation ◽

Acl Deficient ◽

Deficient Knee

ImportanceMeniscal tears are frequently associated with anterior cruciate ligament (ACL) injury and the correct management of this kind of lesion during ACL-reconstruction procedure is critical for the restoration of knee kinematics. Although the importance of meniscus in knee biomechanics is generally accepted, the influence of medial and lateral meniscus in stability of ACL-deficient knee is still unclear.ObjectiveThe aim of this study was to review literature, which analysed effects in cadaveric specimens of meniscal tear and meniscectomy of medial and lateral meniscus on laxity in the ACL-deficient knee.Evidence reviewAuthors performed a systematic search for cadaveric studies analysing the effect of medial and lateral meniscus tears or resection on kinematics of ACL-deficient knee. Extracted data included year of publications, number of human cadaver knee specimens, description of apparatus testing and instrumented kinematic evaluation, testing protocol and results.FindingsAuthors identified 18 studies that met inclusion and exclusion criteria of current review. The major finding of the review was that the works included reported a difference role of medial and lateral meniscus in restraining ACL-deficient knee laxity. Medial meniscus tear or resection resulted in a significant increase of anterior tibial displacement. Lateral meniscus lesions or meniscectomy on the other hand significantly increased rotation and translation under a coupled valgus stress and internal-rotation torque/pivot shift test.ConclusionsMedial and lateral meniscus have a different role in stabilising the ACL-deficient knee: while the medial meniscus functions as a critical secondary stabilisers of anterior tibial translation under an anterior/posterior load, lateral meniscus appears to be a more important restraint of rotational and dynamic laxity.Level of evidenceLevel IV, systematic review of level I–IV studies.

Download Full-text

MEDIAL MENISCUS TEAR IN A SOCCER PLAYER

Medicine & Science in Sports & Exercise ◽

10.1097/00005768-200105001-01315 ◽

2001 ◽

Vol 33 (5) ◽

pp. S234

Author(s):

C J Veneziano ◽

R M Selby

Keyword(s):

Soccer Player ◽

Medial Meniscus ◽

Meniscus Tear

Download Full-text

Medial meniscus tear morphology and related clinical symptoms in patients with medial knee osteoarthritis

Knee Surgery Sports Traumatology Arthroscopy ◽

10.1007/s00167-014-2939-z ◽

2014 ◽

Vol 23 (1) ◽

pp. 158-163 ◽

Cited By ~ 7

Author(s):

Masayuki Kamimura ◽

Jutaro Umehara ◽

Atsushi Takahashi ◽

Toshimi Aizawa ◽

Eiji Itoi

Keyword(s):

Knee Osteoarthritis ◽

Medial Meniscus ◽

Clinical Symptoms ◽

Meniscus Tear ◽

Medial Knee ◽

Medial Knee Osteoarthritis

Download Full-text

Effect of Leukocyte-Rich and Platelet-Rich Plasma on Healing of a Horizontal Medial Meniscus Tear in a Rabbit Model

BioMed Research International ◽

10.1155/2015/179756 ◽

2015 ◽

Vol 2015 ◽

pp. 1-7 ◽

Cited By ~ 8

Author(s):

Kyun Ho Shin ◽

Haseok Lee ◽

Seonghyun Kang ◽

You-Jin Ko ◽

Seung-Yup Lee ◽

...

Keyword(s):

Medial Meniscus ◽

Single Injection ◽

Platelet Rich Plasma ◽

Rabbit Model ◽

Meniscus Tear ◽

Control Group ◽

Mature Adult ◽

Meniscus Tears ◽

Meniscus Healing ◽

Positive Effect

There are limited reports on the effect of platelet-rich plasma (PRP) on meniscus healing. The purpose of this study was to investigate the effect of leukocyte-rich PRP (L-PRP) on potential healing of the horizontal medial meniscus tears in a rabbit model. A horizontal medial meniscus tear was created in both knees of nine skeletally mature adult rabbits. Left or right knees were randomly assigned to a L-PRP group, or a control group. 0.5 mL of L-PRP from 10 mL of each rabbit’s whole blood was prepared and injected into the horizontal tears in a L-PRP group. None was applied to the horizontal tears in a control group. The histological assessment of meniscus healing was performed at two, four, and six weeks after surgery. We found that there were no significant differences of quantitative histologic scoring between two groups at 2, 4, and 6 weeks after surgery (p>0.05). This study failed to show the positive effect of single injection of L-PRP on enhancing healing of the horizontal medial meniscus tears in a rabbit model. Single injection of L-PRP into horizontal meniscus tears may not effectively enhance healing of horizontal medial meniscus tears.

Download Full-text

Evaluation of associated meniscal and chondral injuries in patients undergoing arthroscopic anterior cruciate ligament reconstruction

Journal of Arthroscopic Surgery and Sports Medicine ◽

10.25259/jassm_37_2020 ◽

2021 ◽

Vol 2 ◽

pp. 34-40

Author(s):

Prateek Gupta ◽

Shakti Swaroop ◽

Rakesh Arya

Keyword(s):

Acl Reconstruction ◽

Medial Meniscus ◽

Cruciate Ligament ◽

Lateral Meniscus ◽

Acl Injury ◽

Meniscus Tear ◽

Chondral Lesions ◽

Meniscal Lesions ◽

Meniscus Lesions ◽

Anterior Cruciate

Objectives: Anterior cruciate ligament (ACL) injury of the knee is commonly associated with meniscal and chondral lesions. This study was performed to assess the relative risk factors as well as the extent of the meniscal and chondral pathology at the time of arthroscopic ACL reconstruction. Materials and Methods: In this prospective study, patients undergoing ACL reconstruction were enrolled. Association of meniscal and chondral lesions was analyzed with age, sex, body mass index (BMI), mechanism of injury (sports-related or not), time gap between injury and surgery (<3 month and >3 months), and instability episodes. Logistic regression and Pearson Chi-square test were applied for evaluating the association. Results: A total of 55 patients (mean age 30 years [19–50 years]; 45 male:10 female) underwent arthroscopic ACL reconstruction, out of which 20 (36.3%) had isolated lateral meniscus tear, 14 (25.4%) had isolated medial meniscus tear, and 3 (5.4%) had both lateral and medial meniscus tear. BMI (P = 0.031) and instability episodes (P = 0.033) were predictor for meniscal lesions. Male sex was associated with significantly higher medial (P = 0.049) and lateral meniscal (P = 0.008) lesions. The older age group (>30 years) was associated with medial meniscus lesions (P = 0.047), while the younger age group (<30 years) had significantly higher lateral meniscal lesions (P = 0.008). Chronic ACL injuries (>3 months) had a significantly higher risk of medial meniscus lesions (P = 0.006). Age (>30 years) (P = 0.002) and obesity (BMI >30 kg/m2) (P = 0.043) were predictors of chondral lesions. Conclusion: Significant association is observed between age (>30 years), male gender, obesity, and chronicity with medial meniscal injuries in patients with an ACL injury, while younger patients (<30 years) and patient operated within 3 months had a higher incidence of lateral meniscus lesions. Age and BMI (>30 kg/m2) were predictors of chondral lesions in ACL injury.

Download Full-text