The authors studied the articular cartilage surface anatomy of the patellofemoral joint in the sagittal and axial planes. On sagittal and axial cryosections and on multiplanar MR arthrotomograms, biplanar contour differences of the retropatellar articular cartilage surfaces and curvatures with respect to the corresponding subchondral osseous contours of the patellofemoral joint were determined. On multiplanar arthrotomograms, the surface geometry of the articular cartilage of the patella and of the femoral trochlea were compared.
View Article and Find Full Text PDFObjective: The purpose of this study was to quantify quadriceps tendon length, thickness, and insertion in relation to the suprapatellar fat pad.
Subjects And Methods: We used three methods to analyze the anatomy of intact quadriceps tendons and insertions into the patellar base: MR arthrography (53 knees with intact extensor mechanisms), gross anatomy (16 cadaveric knees), and cryosections (four cadaveric knees). With an electronic cursor, two observers independently quantified the extensor mechanism on midline sagittal T1-weighted spin-echo sequences acquired on a low-field-strength (0.
We assessed the anatomy of the anterior cruciate ligament (ACL) and femoral intercondylar notch on cryosections from one cadaveric knee specimen in the coronal oblique plane oriented parallel to the intercondylar roof. We determined the course of the ACL, the widths of the cruciate ligaments at intersection, and the intercondylar notch configuration on coronal oblique plane magnetic resonance images in 51 adult cruciate ligament-intact knees (25 women, 26 men; age range, 16 to 47 years). The intercondylar notch widths were measured at the notch entrance, at the intersection of the ACL and posterior cruciate ligament (PCL), and at the notch outlet.
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