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Case review MSK

Terms

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fragmentation of the tibial tuberosity
if there is associated soft tissue swelling in a young adolescent, it is OSGOOD SCHLATTER. There must be associated soft tissue swelling.

The condition is osteochondrosis of the tibial tuberosity ossification centers.

Complications are nonunion of the fragments, patellar subluxation, chondromalacia patella, and avulsion of the patellar tendon
Wavy syndesmophytes in spine and calcification of tendons/ligaments in pelvis and trochanteric regions.
DISH can have enthesopathy, so dont let that fool you into thinking you are seeing AS
Spine calcs in AS
Syndesmophytes = CALCIFICATION IN THE ANNULUS FIBROSIS.


Also see calcification in the interspinous ligaments
DDx for widened intercondylar notch
Hemophilia


Septic arthritis


Sometimes JCA


DONT SAY PVNS OR SYNOVIAL OC, because erosions do NOT occur in the knee with this because the knee bursae are capacious
Cause of intercondylar notch widening
Hemorrhage into the origins of the cruciate ligaments
Hemophiliac pseudotumor
It is an intraosseous or subperiosteal hemorrhage which looks like a LYTIC EXPANSILE PERIPHERAL LESION.

Occurs most commonly at the Ilium, femur and tibia
Hemophilia diagnosis
Findings occur because of chronic irritation by blood products which cause synovial hypertrophy which causes articular cartilage erosion and subchondral sclerosis.


ON MRI THERE IS HEMOSIDERIN DEPOSITION, SO THAT THE DDX IS ALWAYS BETWEEN PVNS AND HEMOPHILIA!!!
What is Poland syndrome associated with?
Syndactyly
What are syndactyly associations
Ellis van Creveld


Down's, and Trisomy 13, 18


Fanconi


Neurofibromatosis


TAR (Thrombocytopenia absent radius)
What is the DDx clinically for hemophiliac arthropathy
Septic arthritis. The joint gets swollen and hot.
Cranial abnormalities associated with osteopetrosis
Hydrocephalus


Optic nerve compression resulting in atrophy


Internal auditory canal stenosis resulting in facial paralysis and deafness


Obliteration of sinuses
What happens to osteopetrotic mandibles
osteomyelitis
What is ddx for dense metaphyseal bands
Heavy metal poisoning


Healed rickets


Severe systemic illness


Hypothyroidism

Deck Info

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