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Flashcards in Soft Tissue Deck (22):
1

Where does the Menisci distribute load from the covex femoral condyles to?

Relatively flat tibial articular surfaces

2

Is the medial meniscus fixed or mobile?

Fixed

3

Is the lateral meniscus fixed or mobile?

Mobile

4

What happens in regards to the tibia during knee pivoting?

Internally rotates on flexion and externally rotates on extension

5

What ligament resists valgus stress?

Medial collateral ligament

6

What ligament resists varus stress?

Lateral collateral ligament

7

What does the anterior cruciate ligament resist against?

Anterior subluxation of the tibia and internal rotation of the tibia in extension

8

What does the posterior ligament resist against?

Posterior subluxation of the tibia i.e. anterior subluxation of the femur and hyperextension of the knee

9

What resists against external rotation of the tinia in flexion?

The posterolateral corner - The PCL and the LCL with popliteus and other small ligaments

10

What miniscal tears can occur in the over 40's?

Atraumatic spontaneous degenerative tears

11

What meniscal tears wont heal?

Radial tears

12

When would you consider arthroscopic repair?

in acute peripheral tears in younger patient

13

When would a patient have 15 degree springy block to extension?

Displaced bucket handle tear

14

What may develop if the knee remains locked?

FFD

15

What may a degenerative tear represent?

1st stage OA

16

What is a grade 1 knee ligament injury?

Sprain, tear some fibres but macroscopic structure intact

17

What is a grade 2 knee ligament injury?

Partial tear, some fascicles disrupted

18

What is a grade 3 knee ligament injury?

Complete tear

19

What are the options to treat a ruptures ACL?

Autograph - patellar tendon or hamstrings
Allograph - Achilles
Synthetic graft
Stick ACL to PCL

20

How long does rehab take for ACL reconstruction?

3 months to a year

21

What is Osteochondritis Dissecans?

An area of knee that loses its blood supply and cartilage, bone can fragment off

22

What are the options for cartilage regeneration techniques?

Drilling/microfracture
Osteochondral autograph or allograft
Mosaicplasty
MACI - membrane induced autologous chondrocyte implantation