scholarly journals A CADAVERIC STUDY INDICATING CLINICAL SIGNIFICANCE OF RELATION BETWEEN AREA OF MENISCI WITH CORRESPONDING TIBIAL PLATEAU AND THAT OF DISTANCE BETWEEN ANTERIOR HORN AND POSTERIOR HORN OF MENISCI

2019 ◽  
Vol 7 (1.2) ◽  
pp. 6198-6203
Author(s):  
Shital Bhishma Hathila ◽  
◽  
Bharat J. Sarvaiya ◽  
Vaniya V.H. ◽  
Maitreyee Kulkarni ◽  
...  
Keyword(s):  
Clinical Significance ◽  
Tibial Plateau ◽  
Posterior Horn ◽  
Cadaveric Study ◽  
Anterior Horn

Tibial Plateau Cysts at the Meniscal Root Insertions: Incidence and Association

2011 ◽  
Vol 1 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Manjiri M Didolkar ◽  
Emily N Vinson
Keyword(s):  
Retrospective Study ◽  
Tibial Plateau ◽  
Posterior Horn ◽  
Anterior Horn ◽  
Level Of Evidence ◽  
Meniscal Root ◽  
Knee Mri ◽  
Institutional Review ◽  
Level Ii ◽  
Meniscal Pathology

ABSTRACT Background The purpose of this study is to identify a possible relationship between high T2-signal cyst-like foci in the tibial plateau at the meniscal root insertions and meniscal pathology. Methods Institutional review board approval was obtained for this retrospective study. HIPAA compliance was maintained throughout this study. Two radiologists reviewed 200 knee MRI examinations for tibial plateau cysts at the meniscal root insertion sites; meniscal tears and intrameniscal cysts were also noted. The knee MRI examinations were also evaluated for articular cartilage abnormalities of the medial and lateral tibial plateaus. Results Of the 200 knee examinations, 83(41.5%) demonstrated medial meniscal pathology and 47(23.5%) demonstrated lateral meniscal pathology. Twenty (10%) demonstrated cysts in at least one of the described locations; two knees had cysts in two separate locations. four (2%) examinations had cysts at the anterior horn medial meniscal insertion, and all four (100%) had medial meniscal pathology (p = 0.028). Eleven (5.5%) examinations demonstrated cysts at the posterior horn medial meniscal insertion, and eight (72.7%) had medial meniscal pathology (p = 0.031). five (2.5%) examinations demonstrated cysts at the anterior horn lateral meniscal insertion, and one (20%) had lateral meniscal pathology (p = 0.374). Two (1%) examinations demonstrated cysts at the posterior horn lateral meniscal insertion, and one (50%) had lateral meniscal pathology (p = 0.852). Conclusions Cysts at the meniscal insertions are often seen on knee MRI. Cysts located at the insertions of the medial meniscus have a statistically significant association with meniscal pathology. Level of evidence Level II, retrospective study with development of diagnostic criteria on the basis of consecutive patients.

CORRELATION OF TIBIAL MENISCUS WITH TIBIAL PLATEAU AND ITS CLINICAL SIGNIFICANCE: A CADAVERIC STUDY

2015 ◽  
Vol 3 (2) ◽  
pp. 1073-1078
Author(s):  
Soniya Arunkumar Gupta ◽  
◽  
Saiprasad Prabhakar Bhavsar ◽  
Medha V Ambiye ◽  
◽  
...  
Keyword(s):  
Clinical Significance ◽  
Tibial Plateau ◽  
Cadaveric Study

Conformation of the proximal tibia and cranial cruciate ligament disease in small breed dogs

2017 ◽  
Vol 30 (03) ◽  
pp. 178-183 ◽  
Author(s):  
Michal Kyllar ◽  
Duncan Midgley ◽  
Martin Owen ◽  
Jan Janovec
Keyword(s):  
Body Weight ◽  
Clinical Significance ◽  
Tibial Plateau ◽  
Proximal Tibia ◽  
Cruciate Ligament ◽  
Tibial Tuberosity ◽  
Cranial Cruciate Ligament ◽  
Relative Body Weight ◽  
Cranial Cruciate Ligament Disease ◽  
Small Breed

SummaryObjectives: To investigate the conformation of the proximal tibia in small breed dogs with and without cranial cruciate ligament disease (CCLD) and to identify morphologic abnormalities that may predispose to development of CCLD.Methods: Mediolateral radiographs of the entire tibia of dogs <15 kg with surgically confirmed CCLD were retrospectively evaluated. Proximal tibial width (PTW), tibial plateau length (TPL), tibial plateau angle as described by Slocum and Slocum (sTPA), proximal tibial tuberosity angle (PTTA), tibial plateau angle as described by Inauen and colleagues (nTPA), and diaphyseal tibial width (DTW) were measured. The same variables were obtained from mediolateral radiographs of the entire tibia of dogs <15 kg without CCLD. In addition, a quotient nTPA/ PTW, relative tibial tuberosity width (rTTW), and relative body weight (rBW) were calculated for each dog. Independent two-sample t-test (p = 0.05) was used to compare mean ± SD of all measured variables between the two groups.Results: Gender, age, and weight mean ± SD were not significantly different between the two groups of dogs (p <0.05). Dogs with CCLD had significantly greater sTPA (p = 0.015) and rBW (p = 0.016).Clinical significance: In dogs of small breeds, a combination of an excessively steep tibial plateau and an increased relative body weight may predispose to early CCLD development. The slope of the tibial plateau was found to be caused by an abnormal caudal angulation of the proximal tibia, a phenomenon previously associated with CCLD development in small breed dogs in individual cases.

What Is the Relationship Between the Distal Semimembranosus Tendon and the Medial Meniscus? A Gross and Microscopic Analysis From the SANTI Study Group

2020 ◽  
pp. 036354652098007
Author(s):  
Etienne Cavaignac ◽  
Rémi Sylvie ◽  
Maxime Teulières ◽  
Andrea Fernandez ◽  
Karl-Heinz Frosch ◽  
...  
Keyword(s):  
Laboratory Study ◽  
Tibial Plateau ◽  
Medial Meniscus ◽  
Sagittal Plane ◽  
Microscopic Analysis ◽  
Joint Capsule ◽  
Posterior Horn ◽  
Ligament Injury ◽  
Semimembranosus Tendon ◽  
Meniscotibial Ligament

Background: Some authors have suggested that the semimembranosus tendon is involved in the pathophysiology of ramp lesions. This led us to conduct a gross and microscopic analysis of the posterior horn of the medial meniscus and the structures inserted on it. Hypothesis: (1) The semimembranosus tendon has a tendinous branch inserting into the posterior horn of the medial meniscus, and (2) the meniscotibial ligament is inserted on the posteroinferior edge of the medial meniscus. Study Design: Descriptive laboratory study. Methods: In total, 14 fresh cadaveric knees were dissected. From each cadaveric donor, a stable anatomic specimen was harvested en bloc, including the medial femoral condyle, medial tibial plateau, whole medial meniscus, cruciate ligaments, joint capsule, and distal insertion of the semimembranosus tendon. The harvested blocks were cut along the sagittal plane to isolate the distal insertion of the semimembranosus tendon on the posterior joint capsule and the posterior horn of the medial meniscus in a single slice. Histological slides were made from these samples and analyzed under a microscope. Results: In all knees, gross examination revealed a direct branch of the semimembranosus and a tendinous capsular branch ending behind the posterior horn of the medial meniscus. This capsular branch protruded over the joint capsule, over the meniscotibial ligament below and the meniscocapsular ligament above, but never ended directly in the meniscal tissue. The capsular branch was 14.3 ± 4.4 mm long (mean ± SD). The direct tendon inserted 11 ± 2.8 mm below the articular surface of the tibial plateau. The meniscotibial ligament inserted on the posteroinferior edge of the medial meniscus, and the meniscocapsular ligament insertion was on its posterosuperior edge. Highly vascularized adipose tissue was found, delimited by the posterior horn of the medial meniscus, meniscotibial ligament, meniscocapsular ligament, and capsular branch of the semimembranosus tendon. Conclusion: In all knees, our study found a capsular branch of the semimembranosus tendon inserted behind the medial meniscus. The meniscotibial ligament was inserted on the posteroinferior edge of the medial meniscus. Histological analysis of this area revealed that this ligament inserted differently from the insertion previously described in the literature. Clinical Relevance: This laboratory study provides insight into the pathophysiology of ramp lesions frequently associated with anterior cruciate ligament injury. To restore anatomy, it is mandatory to reestablish meniscotibial ligament continuity in ramp repairs.

MR imaging of the anatomy of the anterior horn of the medial meniscus

2016 ◽  
Vol 58 (4) ◽  
pp. 464-471 ◽  
Author(s):  
Tineke De Coninck ◽  
Frederik Vanrietvelde ◽  
Patrick Seynaeve ◽  
Peter Verdonk ◽  
Koenraad Verstraete
Keyword(s):  
Radial Displacement ◽  
Tibial Plateau ◽  
Medial Meniscus ◽  
Anterior Horn ◽  
Observer Agreement ◽  
Type I ◽  
Tibial Spine ◽  
Tibial Plateau Slope ◽  
Significant Difference ◽  
Anterior Tibial

Background In cadaveric and arthroscopic studies different insertion locations of the anterior horn of the medial meniscus (AHMM) have been described. Purpose To investigate if the different insertion locations of the AHMM, as described in cadaveric studies, can be determined on magnetic resonance imaging (MRI). Material and Methods MR images of 100 patients without meniscal tears on MRI were retrospectively evaluated. Two observers classified the AHMM insertion based on its position relative to the anterior tibial edge and the medial tibial spine. The association between AHMM insertion and tibial plateau slope, meniscal radial displacement, and anterior intermeniscal ligament (AIL) presence was investigated. Results The AHMM inserted posterior to the anterior tibial edge in 93 knees and anterior to the tibial edge in seven knees (= type III). Of the 93 knees with AHMM insertion posterior to the anterior tibial edge, 63 inserted lateral to the medial tibial spine (= type I) and 30 medial (= type II). The AHMMs inserting anterior to the tibial edge had a significantly ( P < 0.05) steeper anterior tibial plateau slope and a significantly ( P < 0.05) higher presence of the AIL. No significant difference in radial displacement was observed between the three insertion types ( P > 0.05). A strong inter- and intra-observer agreement was observed. Conclusion Three different bony insertion locations of the AHMM, as described in cadaveric studies, could be identified on MRI. All AHMMs inserting anterior to the tibial edge displayed an AIL. Whether there is a clinical correlation with these insertion patterns remains unclear.

Evaluation of Meniscal Tissue after Meniscal Repair Using Ultrahigh Field MRI

2020 ◽  
Author(s):  
Beate Stelzeneder ◽  
Bernhard Michael Trabauer ◽  
Silke Aldrian ◽  
David Stelzeneder ◽  
Vladimir Juras ◽  
...  
Keyword(s):  
T2 Mapping ◽  
Lateral Meniscus ◽  
Posterior Horn ◽  
Anterior Horn ◽  
7 Tesla ◽  
Control Group ◽  
White Zone ◽  
Meniscal Tissue ◽  
Lateral Posterior

AbstractThe study evaluates the meniscal tissue after primary meniscal suturing using 7-Tesla (T) magnetic resonance imaging with T2* mapping at 6 and 12 months after surgery to investigate the differences between repaired meniscal tissue and healthy meniscal tissue in the medial and lateral compartment. This prospective study included 11 patients (9m/2f) with a mean age of 30.6 years (standard deviation 9.0). Patients with a meniscal tear that was treated arthroscopically with meniscus suturing, using an all-inside technique, were included. All patients and seven healthy volunteers were imaged on a 7-T whole-body system. T2* mapping of the meniscus was applied on sagittal slices. Regions-of-interest were defined manually in the red and white zone of each medial and lateral meniscus to measure T2*-values. In the medial posterior and medial anterior horn similar T2*-values were measured in the red and white zone at 6- and 12-month follow-up. Compared with the control group higher T2*-values were found in the repaired medial meniscus. After 12-months T2*-values decreased to normal values in the anterior horn and remained elevated in the posterior horn. In the red zone of the lateral posterior horn a significant decrease in the T2*-values (from 8.2 milliseconds to 5.9 milliseconds) (p = 0.04), indicates successful repair; a tendency toward a decrease in the white zone between the 6 and 12 months follow-up was observed. In the red zone of the lateral anterior horn the T2*-values decreased significantly during follow-up and in the white zone of the lateral anterior horn T2*-values were comparable. In comparison to the control group higher T2*-values were measured at 6-months; however, the T2*-values showed comparable values in the repaired lateral meniscus after 12 months. The T2* mapping results of the current study indicated a better healing response of the red zone of the lateral posterior horn compared with the medial posterior horn.

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