Bony landmark between the attachment of the medial meniscus posterior root and the posterior cruciate ligament: CT and MR imaging assessment

2017 ◽  
Vol 46 (8) ◽  
pp. 1041-1045 ◽  
Author(s):  
Masataka Fujii ◽  
Takayuki Furumatsu ◽  
Shinichi Miyazawa ◽  
Yuya Kodama ◽  
Tomohito Hino ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Posterior Cruciate Ligament ◽  
Medial Meniscus ◽  
Cruciate Ligament ◽  
Posterior Root ◽  
Bony Landmark

MR imaging of the posterior cruciate ligament: normal, abnormal, and associated injury patterns.

Radiographics ◽  
1995 ◽  
Vol 15 (3) ◽  
pp. 551-561 ◽  
Author(s):  
A H Sonin ◽  
S W Fitzgerald ◽  
F L Hoff ◽  
H Friedman ◽  
M E Bresler
Keyword(s):  
Mr Imaging ◽  
Posterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Injury Patterns ◽  
Associated Injury

scholarly journals The morphology and histology study on rabbit degenerated medial meniscus after posterior cruciate ligament rupture

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Zhenhan Deng ◽  
Wei Luo ◽  
Shanshan Gao ◽  
Zhan Liao ◽  
Yihe Hu ◽  
...  
Keyword(s):  
Posterior Cruciate Ligament ◽  
Medial Meniscus ◽  
Cruciate Ligament ◽  
Tissue Inhibitors Of Metalloproteinases ◽  
Histological Evaluation ◽  
Control Side ◽  
Ligament Rupture ◽  
Experimental Side ◽  
High Level ◽  
Posterior Cruciate Ligament Rupture

Abstract The morphology and histology changes in the medial meniscus after posterior cruciate ligament (PCL) rupture are poorly understood. Forty-eight rabbits were divided into matched mode pairs; each rabbit had an experimental side, in which the PCL was transacted, and a control side. At the 4, 8, 16 and 24 weeks after the PCL transection, each of the 12 rabbits was killed. Histology was performed to detect the expression of the tissue inhibitors of metalloproteinases-1 (TIMP-1), matrix metalloproteinase (MMP)-1 and MMP-13 in the medial meniscus. We found that medial meniscus displayed significant degenerative characteristics in morphology. The histological evaluation of the degeneration found that the expression levels of TIMP-1, MMP-1 and MMP-13 in the medial meniscus were higher in the experiment side than those in the control side (P<0.05). The expression of both TIMP-1 and MMP-13 was initially elevated and then decreased. The MMP-1 expression reached its peak swiftly and then maintained a relatively high level. There were clear time-dependent degenerative changes in the histology of the medial meniscus after PCL rupture. The high expression of TIMP-1, MMP-1 and MMP-13 in the cartilage may be responsible for the degeneration, and PCL rupture may trigger meniscus degradation and ultimately osteoarthritis.

scholarly journals Posterior cruciate ligament: MR imaging.

Radiology ◽  
1990 ◽  
Vol 174 (2) ◽  
pp. 527-530 ◽  
Author(s):  
J S Grover ◽  
L W Bassett ◽  
M L Gross ◽  
L L Seeger ◽  
G A Finerman
Keyword(s):  
Mr Imaging ◽  
Posterior Cruciate Ligament ◽  
Cruciate Ligament

scholarly journals Tibial Avulsion with Intra-Articular Entrapment of Medial Collateral Ligament with Posterior Cruciate Ligament Tear with Posterior Root Medial Meniscus Tear: A Case Report of an Unusual Injury Triad

2021 ◽  
Vol 11 (8) ◽  
Author(s):  
Ishan Shevate ◽  
Girish Nathani ◽  
Ashwin Deshmukh ◽  
Anirudh Kandari
Keyword(s):  
Case Report ◽  
Medial Collateral Ligament ◽  
Medial Meniscus ◽  
Cruciate Ligament ◽  
Stress Test ◽  
Joint Line ◽  
Posterior Root ◽  
Collateral Ligament ◽  
Valgus Stress ◽  
Medial Knee

Introduction: The medial collateral ligament (MCL) is the most commonly injured ligament of the knee joint; however, its displacement into the medial knee compartment is rare. Traumatic posterior root of medial meniscus (PRMM) tears are commonly found in high-grade injuries involving anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL) tears along with MCL tears. Diagnosis of these injuries can be made by a preoperative magnetic resonance imaging (MRI), but they can be missed at times due to severe soft-tissue swelling in the acute phase. Case Report: A 25-year-old gentleman presented with injury to the front of his left knee 5 days back. On examination, he had a Grade 3 effusion with valgus stress test and posterior drawer test being positive and medial joint line tenderness was present. A firm localized swelling was palpable on the medial joint line. MRI scan revealed a mid-substance PCL tear, ACL sprain, PRMM tear, and tibial side rupture of superficial MCL with proximally migrated wavy MCL fibers lying below the medial meniscus confirmed on arthroscopy. Medial meniscus root repair by pull through technique and PCL reconstruction with a 3-strand peroneus longus graft followed by open MCL repair with augmentation using a semitendinosus graft was performed. Postoperatively, the knee was kept in a straight knee brace for 4 weeks, followed by a hinged knee brace and appropriate physiotherapy were started. At 2 years follow-up, the patient had attained full range of knee motion with good quadriceps strength, tibial step off maintained, and negative posterior drawer test and valgus stress test. Displacement of torn MCL into the medial knee compartment is an extremely rare injury. Proximal or distal avulsion of MCL with intra-articular incarceration has been reported in isolation or associated with ACL tear. Such an injury triad as reported here has not been reported in the literature to the best of our review. Conclusion: In our case, we report a ver

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