Articular Cartilage Healing (Exam 1)

Question 1

Covers the ends of bone with synovial joints.

Answer 1

Articular cartilage

Question 2

Water and parallel, highly organized collagen fibrils.

Answer 2

Superficial Zone

Question 3

Large diameter, randomly arranged collagen and rounded chondrocytes.

Answer 3

Middle or Transitional Zone

Question 4

Rich in proteoglycans, low water, large organized collagen.

Answer 4

Deep Zone

Question 5

Calcified cartilage.

Answer 5

Calcified Zone

Question 6

Articular cartilage is ____ with inability to stimulate, regulate, or organize intrinsic repair.

Answer 6

Avascular

Question 7

____ cartilage is durable. Capable of bearing loads many times body weight. Frictionless.

Answer 7

Hyaline

Question 8

Three overlapping degenerative events.

Answer 8

Fray or fibrillation.
Blistering.
Splitting or clefting (fissuring) or surface.

Question 9

Dissipates extreme compression, mechanical buffer, shock absorber, joint stability, and joint lubrication.

Answer 9

Articulate Cartilage Functions

Question 10

_____ usually occur in older population, example stepping off a curb.

Answer 10

Degenerative tears (meniscal injury)

Question 11

Zone I - There is blood supply on both sides of the tear.

Answer 11

Red on red.

Question 12

Zone II - There is blood supply one one side of the tear, other side is no blood supply.

Answer 12

Red on white.

Question 13

Zone III - There is no blood supply on either side of tear.

Answer 13

White on white.

Question 14

Zone I and Zone III are considered ____.

Answer 14

Reparable

Question 15

Zone III requires _______.

Answer 15

Surgery

Question 16

Treatments for subtotal or total meniscectomy.

Answer 16

AROM and AAROM immediately.
Isometrics progressing to concentric/eccentric.
CKC once pain, swelling and strength allow.