Posteromedial corner of the knee: MR imaging with gross anatomic correlation.
OBJECTIVE
The objective of this study was to illustrate the magnetic resonance (MR) image appearance of the structures of the posteromedial "corner" of the knee with particular emphasis on the anatomy and differentiation between the medial collateral ligament and the posterior oblique ligament.


METHODS
Six cadaveric knee specimens underwent MR imaging, before and following instillation of intra-articular contrast material. The knees were sectioned in the axial, coronal, and coronal oblique planes and the gross morphology of the posteromedial corner and surrounding structures was studied and correlated with the MR images.


METHODS
The human cadaveric specimens were from two female and four male patients (age at death, 72-86 years; average, 78 years).


CONCLUSIONS
The contrast-enhanced sequences and the coronal oblique images allowed for improved visualization of the structures.
Loredo
R
R
Department of Radiology, The University of Texas at San Antonio, 78284-7800, USA.
Hodler
J
J
Pedowitz
R
R
Yeh
L R
LR
Trudell
D
D
Resnick
D
D
D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D019786:Gadolinium DTPA / Q000008:administration & dosage; D006801:Humans; D007270:Injections, Intra-Articular; D007719:Knee Joint / Q000033:anatomy & histology*; D008279:Magnetic Resonance Imaging; D008297:Male; D017888:Medial Collateral Ligament, Knee / Q000033:anatomy & histology*
D003287:Contrast Media; D019786:Gadolinium DTPA