Congrats to - Dr. Yoni, Dey, Vosburgh, Lussier, and Bonney!
1. Layering in the joint space - lipohemarthrosis. This signifies either fracture or bone bruise (2 points)
2. Schatzker II. Depression and gap at the articular surface. CT - better define the fracture preoperatively (3 points)
Large arrow shows depressed portion. The smaller arrow points to the vertical cleft.
3. Double PCL sign. Bucket handle tear of the meniscus. Medial (3 points)
4. Anteromedial tibia and fibular styloid. MRI to evaluate for cruciate injury and posterolateral corner injury (1 each for fracture; 1 for MRI, 1 for why; 4 points)
5. Soft tissue mass anterior to the ACL reconstruction - Arthrofibrosis - cyclops lesion; Hates him. Limited extension. ACL reconstruction (3)
6. Comminuted patellar fracture. No. ORIF - Often with circlage wires and sometimes additional screws (3 points)
Bipartite and multipartite patellas - typically are more lateral than diffuse. There is a type involving the inferior patella - but medial is rare. This example is extensively fragmented - therefore it is more likely to be fractured.
7. Quadriceps tear. Rectus femoris (superficial), conjoint vasus lateralis and medialis (middle), vastus intermedius (deep) - (2 points)
8. Prepatellar bursitis. Maid, carpenter, someone working long periods on their knees. (2 points)
9. Limits abduction and may result in anterior dislocation (when hip is placed in forced abduction) (1 point)
10. Stress Shielding - the bone that is not under stress is resorbed (1 point)
11. migration of component, change in alignment of a component with adjacent bone, lucency at bone-hardware interface > 2mm, fracture of cement or hardware in setting of cemented hardware. (2 points)
12. Scapular notching along axillary border of the scapula is often a precursor to loosening and failure (1 point)
bonus - variable answers (2 points possible)
Total possible - 27 points + 2 possible bonus points
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