Osteoarthritis: Proteoglycan, Collagen, Bone Dysfunction

Question 1

Osteoarthritis is

inflammatory/non-inflammatory

Answer 1

non-inflammatory

Question 2

Tibiofemoral knee presentation

Answer 2

Medial pain (varus), limited flexion, deformity, instability, mechanical catching, stair difficulty

Question 3

Imaging for OA includes

Answer 3

AP pelvis, true later, frog-leg lateral

Question 4

Characterisitic findings of OA include

Answer 4

Subchondral bone hypertrophy
Cartilage (joint-space) loss
Osteophytes
Subchondral cysts

Question 5

Pharm used for OA injections

Answer 5

cortisone analog
hyaluronate (not recommended)
(cannot regrow cartilage)

Question 6

Patellofemoral knee presentation

Answer 6

anterior knee pain, pain ascending stairs (not as bad as tibiofemoral)

Question 7

Nerve responsible for knee pain with hip arthritis

Answer 7

Obturator nerve referred pain

Question 8

Late issues leading to joint replacement revision

Answer 8

Osteolysis
Loosening
Wear

Question 9

Heberden’s nodes are on

Answer 9

DIP joint

Question 10

Oral pharm for OA

Answer 10

oral NSAIDs

Question 11

Evaluation of OA may include these labs

Answer 11

Inflammatory labs to r/o inflammatory arthritis, infection

Question 12

Bouchard’s nodes are on

Answer 12

PIP joint

Question 13

A medial wedge would be used for

Answer 13

Varus knee moment

Question 14

Fusion might be used in _______ and is effective by _____________

Answer 14

Foot, ankle, spine;

eliminating motion

Question 15

A lateral wedge would be used for

Answer 15

Valgus knee moment

Question 16

Physical risks of hip or knee replacement include

Answer 16

Thromboembolitic disease (DVT, PE)
Neurovascular injury
Bleeding
Wound healing issues
Fracture (intra or post op)
Hip: dislocation, limp, HO, LLD
Knee: stiffness, laxity, PF problems
Cardiopulm: MI, stroke, death