There is a small joint effusion, smaller than previously seen.
Trace amount of fluid in the expected region of the popliteal
(Baker's) cyst is seen.
The anterior cruciate ligament is intact.
The posterior cruciate ligament is intact.
The extensor mechanism is unremarkable.
The medial collateral ligament is intact.
The lateral collateral ligament, the biceps tendon, and the distal
iliotibial band is unremarkable.
Medial meniscus: Unchanged in appearance. Degenerative intrasubstance
signal involving the posterior horn and junction of the posterior horn
with body, without convincing extension to the meniscal surface to
suggest a superimposed tear. Trace amount of intermediate signal
involving the free edge of the medial meniscus body suggestive of
superficial fraying. Cartilage flap measuring approximately 1.3 x 0.4
cm involving the lateral weightbearing aspect of the medial femoral
condyle, with small underlying subchondral cyst, more pronounced than
before. This is best seen on coronal image 8 series 5, and sagittal
image 9 series 7. Cartilage thinning involving the medial tibial
plateau, without a discrete fluid-filled cartilage signal.
The lateral meniscus is intact. Cartilage surfaces in the lateral
compartment are intact.
Early chondromalacia involving the inferior aspect of the junction of
the facets of the femoral trochlea with heterogeneous cartilage signal
in this region, without a discrete fluid-filled cartilage defect. The
cartilage surfaces in the patellofemoral compartment are otherwise
1. A 1.3 cm cartilage flap involving the lateral aspect of
the medial femoral condyle. This is in the area of previously seen
degenerative bone cyst.
2. Stable appearance of the medial meniscus with degenerative
intrasubstance signal involving the posterior horn and junction of the
posterior horn and body, without MR apparent discrete superimposed
3. Tiny joint effusion, decreased in size from prior