Role of the mechanical axis of lower limb and body weight in the horizontal tear and root ligament tear of the posterior horn of the medial meniscus

Kim, Young-Mo; Joo, Yong Bum; Min, Soo; Hwang, Jung-Mo

doi:10.1007/s00264-012-1596-4

Cited by 21 publications

(19 citation statements)

References 24 publications

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“…Plain radiographic examination of the knee under loading conditions is recommended when examining patients with meniscal tears [24]. Meniscal extrusion after an MMPRT often leads to radiographic changes, such as MJS narrowing and varus deformity of the knee [25]. We demonstrated that these intra-articular changes, caused by MMPRT, are measurable on the radiographic Rosenberg view (Fig.…”

Section: Discussionmentioning

confidence: 70%

“…The internal rotation of the tibia is influenced by the properties and activities of various muscles, including the popliteal muscle and the semitendinosus, semimembranosus, sartorius, and gracilis muscles. However, in a study evaluating the rotation of the tibia using upright weight-bearing computed tomography (CT) imaging, internal rotation of the tibiofemoral joint did not increase between 30°and 60°of knee flexion [25]. Therefore, considering the Rosenberg view is obtained with the knee in 45°of flexion, we infer that the internal rotation of the tibia during imaging was not influenced by the state of muscle contraction.…”

Section: Discussionmentioning

confidence: 91%

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Preliminary diagnosis of medial meniscus posterior root tears using the Rosenberg radiographic view

Kodama

Furumatsu

Kamatsuki

et al. 2019

Knee Surg & Relat Res

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Purpose: To verify the effectiveness of detecting medial meniscus posterior root tears (MMPRTs) using weightbearing posterior-anterior (PA) radiographs. Materials and methods: Twenty-three patients were diagnosed with an MMPRT using magnetic resonance imaging (Group A), with 23 matched individuals forming the control group (Group B). The distance between medial tibial eminence and the lateral edge of the medial femoral condyle (MTE-MFC distance) and medial joint space (MJS) width were measured on weight-bearing PA radiographs, with the knee flexed at 45°(Rosenberg view). Absolute medial meniscus extrusion (MME) was measured on magnetic resonance images. Results: The MTE-MFC distance was greater and the MJS width was smaller in Group A than Group B (7.7 ± 1.7 mm versus 6.0 ± 1.24 mm and 3.2 ± 0.8 mm versus 4.5 ± 0.7 mm, respectively; P < 0.05). The MTE-MFC distance and MJS width correlated with MME (r = 0.603 and 0.579, respectively; P < 0.05), and the extent of MME was greater in Group A than Group B (4.1 ± 1.1 mm versus 1.8 ± 1.5 mm, respectively; P < 0.05). Conclusions: MMPRTs increase the MTE-MFC distance and decrease the MJS width, with these measurements correlating to the MME. Therefore, measurement of the MTE-MFC distance and MJS width on the Rosenberg view could be a useful preliminary method for the diagnosis of an MMPRT.

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Section: Discussionmentioning

confidence: 70%

Section: Discussionmentioning

confidence: 91%

Preliminary diagnosis of medial meniscus posterior root tears using the Rosenberg radiographic view

Kodama

Furumatsu

Kamatsuki

et al. 2019

Knee Surg & Relat Res

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“…5 As a degenerated tear, horizontal tear is the most common type in medial meniscus tear. 6 Long-term abrasion and extrusion could lead to internal degeneration of meniscus, which moves back and forth between tibiofemoral articular surfaces. This movement causes the separation of the upper and lower articular surfaces of meniscus.…”

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confidence: 99%

Risk Factors Comparison for Radial and Horizontal Tears

Huang

Zhao

et al. 2016

J Knee Surg

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Tears in posterior horn of medial meniscus mainly included horizontal tear, transversal tear, radial tear, complex tear, and bucket handle tear. We analyzed and compared the risk factors for radial tear and horizontal tear in the posterior horn of medial meniscus. A total of 407 consecutive cases who received arthroscopic treatment of medial meniscus tears were analyzed retrospectively. Among them, 103 cases were radial tear in posterior horn of medial meniscus and 107 were horizontal tear. Clinical data records included patients' age, gender, duration of symptoms, body mass index, trauma history, and slope angle of tibia, valgus angle of knee, and grading of cartilage (Outerbridge Grades) were collected and analyzed. In addition, multiple-factor nonconditional logistic regression was adopted to analyze the related risk factors in these two types of medial meniscus tears. The two groups have no difference in age, trauma history, slope angle of tibia, and duration of symptoms but have significant difference in gender, body mass index, and valgus angle of knee and grading of cartilage. Multiple factors analysis indicated that valgus angle, age, and grading of cartilage were risk factors in medial meniscus tears. Patients with posterior horn tear in medial meniscus have higher incidence among senile osteoarthritis, while radial tear was more likely to occur in elderly patients with knee-joint varus and serious cartilage degeneration.

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“…To restore the physiological relationship between femur, meniscus and tibia, accurate positioning of the meniscus based on precise meniscal sizing is critical in meniscus repair and replacement [24]. Several variables, such as patient height and weight and radiographic measurements of the medial tibial plateau are considered good candidates for determining medial meniscal size [25]. Height has linear [15].…”

Section: Discussionmentioning

confidence: 99%

Postoperative change in medial meniscal length in concurrent all-inside meniscus repair with anterior cruciate ligament reconstruction

Furumatsu

Miyazawa

Tanaka

et al. 2013

International Orthopaedics (SICOT)

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Purpose Meniscus repair can restore meniscal function that transfers the axial compressive force to circumferential tensile strain. However, few reports have investigated the relationship between concurrent meniscus repair with acute anterior cruciate ligament (ACL) reconstruction and postoperative meniscal position. This study aimed to evaluate medial meniscal size and clinical results in patients who underwent ACL reconstruction and concomitant all-inside medial meniscus repair. Methods Twenty patients underwent ACL reconstruction and concurrent medial meniscus repair of a peripheral longitudinal tear using the FasT-Fix meniscal repair device. Medial tibial plateau length (MTPL) and width (MTPW) were determined by radiographic images. We evaluated the Lysholm score, anteroposterior instability, meniscal healing and magnetic resonance imaging (MRI)-based medial meniscal length (MML) and width (MMW). Correlations between MRI-based meniscal size, radiographic measurement and height were investigated. Results All patients showed complete healing of the repaired meniscus in arthroscopic evaluation. However, one patient needed a subsequent meniscus repair during the follow-up period. Lysholm score and anteroposterior instability improved significantly. A better correlation was observed between MMW and MTPW than between MML and MTPL. Concurrent all-inside medial meniscus repair with ACL reconstruction significantly increased MML percentage (%MML) (100 MML/MTPL) but did not affect MMW percentage (%MMW) (100 MMW/MTPW).Conclusions Concurrent all-inside medial meniscus repair with ACL reconstruction had satisfactory clinical results. %MML was increased by concurrent medial meniscus repair without affecting %MMW. Our results suggest that medial meniscus repair associated with ACL reconstruction may restore meniscal function by adjusting the anteroposterior length of the torn medial meniscus.

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Role of the mechanical axis of lower limb and body weight in the horizontal tear and root ligament tear of the posterior horn of the medial meniscus

Cited by 21 publications

References 24 publications

Preliminary diagnosis of medial meniscus posterior root tears using the Rosenberg radiographic view

Preliminary diagnosis of medial meniscus posterior root tears using the Rosenberg radiographic view

Risk Factors Comparison for Radial and Horizontal Tears

Postoperative change in medial meniscal length in concurrent all-inside meniscus repair with anterior cruciate ligament reconstruction

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