PATHOLOGY

Detailed explanation-1: -At 2 weeks, the time when many patient come back to have their stitches removed, the skin has only reached 3-5% of its original tensile strength. The skin does however rapidly improve after this time. At 3 weeks, it is 20% of its original strength and by 1 month it reaches 50% of its strength.

Detailed explanation-2: -Fibroblastic (Repair) Phase: 4 days – up to 6 weeks During this phase collagen fibers are set down in the damaged area in the form of scar tissue. This type of tissue is less tensile and weaker making it susceptible to damage if overloaded.

Detailed explanation-3: -The proliferative phase of wound healing is when the wound is rebuilt with new tissue made up of collagen and extracellular matrix. In the proliferative phase, the wound contracts as new tissues are built.

Detailed explanation-4: -Remodelling is the final phase of the healing process in which the granulation tissue matures into scar and tissue tensile strength is increased (Figure 23.5).