Medial Gutter Knee Anatomy

The vastus medialis obliquus originates from the abductor tubercle and distal medial intermuscular septum at an angle of approximately 65 degrees medially off the axis of the femur.

Medial gutter knee anatomy.

The medial patellofemoral ligament mpfl belongs to the anterior medial supporting structures of the knee 1 3 and it is the main structure preventing the patella from lateral displacement at 50 60 restraining force 1 7 9. Three or four sagittal images should be seen through the anterior and posterior horns of the menisci fig. Between a narrow and curved femoral condyle and an oval tibial articular surface with a long anteroposterior length. A medial arthrotomy of the knee is defined as a capsular incision located medial to the patella and the patellar tendon and includes the medial parapatellar arthrotomy the midvastus arthrotomy and the subvastus arthrotomy.

Evaluation of meniscal injury accounts for most requests for mr imaging of the knee at most institutions. Meniscus lateral and medial cruciate ligaments vastus lateralis intermedius medialis tibial and fibular collateral ligaments. The medial ligamentous complex has two layers. There are medial and lateral articular facets on the tibial plateau and medial and lateral femoral condyles on the distal femur with are convex and circular shaped.

Medial intermuscular septum medially approximately 50 degrees off the axis of the femur. Patellar tendon the patellar tendon extends from the inferior pole of. It is a broad flat. The deeply situated capsular reinforcements with an anterior medial and.

In revision surgery the term medial arthrotomy usually refers to the medial parapatellar arthrotomy which is considered the. Inspection of the medial compartment is performed with the knee slightly flexed to allow the scope to enter the compartment over the anterior horn of the medial meniscus. 15 4 with the posterior horn of the medial meniscus usually larger than the anterior horn. The mcl is the primary stabilizer of the medial side of the knee.

It is one of the medial patellar stabilizers together with the medial retinaculum and the vastus medialis oblique muscle 5. The medial and the lateral menisci should have two contiguous images of the body of the meniscus if 4 or 5 mm thick slices are obtained. Anatomy of the knee on a coronal slice mri. Hile the medial collateral ligament is the most fre quently injured ligament in the knee1 4 and while a better understanding of its functional anatomy biomechanics and healing has been obtained over the past twenty years5 9 we have found that its anatomy has only been.

Posterior part and the strong and more superficially localized medial collateral ligament mcl. Mr imaging is reliable in the detection of meniscal tears and identification of meniscal fragmentation and displacement 1 2 3 4 displaced meniscal fragments are often clinically significant lesions requiring surgical intervention and therefore are important to identify.