Ligament Repair(Exam 1)

Question 1

Weak, fragile immature type III collagen is laid down. There is a decrease in type II collagen and type I is laid down (Over weeks).
Collagen is slowly arranged and aligned with response to appropriate applied stresses.

Answer 1

Repair Phase

Question 2

Injured ends retract and a hematoma forms between the ends. Mobilization of substances to the injury site.

Answer 2

Inflammatory Phase

Question 3

Slow process, lasting more than a year.

Type I collagen content increases toward normal.

Answer 3

Remodeling Phase

Question 4

Grade I

Answer 4

Microscopic tearing

Question 5

Grade II

Answer 5

Tearing of some ligament fibers

Question 6

Grade III

Answer 6

Complete rupture

Question 7

Protective bracing and comprehensive and progress rehab for which ligament grades?

Answer 7

Grade I and Grade II

Question 8

Surgical repair for which ligament grade?

Answer 8

Grade III

Question 9

Decreased physiological motion, ligament weight, ligament strength, ligament size.
Muscular atrophy.
Joint stiffness.

Answer 9

Some Effects of Immoblization

Question 10

Rigidly immobilized ligaments produce chemical and morphologic changes _____ weeks after injury.

Answer 10

2-4 Weeks

Question 11

After 8 weeks, ligaments lose ___ % of their weight.

Answer 11

20%

Question 12

First 2 weeks - muscle adaptive shortening.
4 weeks - Loss of normal fiber lubrication, spacing, connective tissue disorganization.
6 weeks - Morphological and biochemical changes more evident.

Answer 12

Immobilization Changes with Time

Question 13

Endurance type exercises produce ___ diameter collagen.

Answer 13

Larger

Question 14

Early protected motion applied to healing soft tissues.

Answer 14

CPM (Continuous Passive Motion)