Surgery MCQ Answer 31
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DISCUSSION:
Tensile strength measures load per cross-section area at rupture, whereas burst strength measures load required to break a wound, regardless of dimension. Therefore, skin wounds have comparable tensile strength, regardless of thickness. Collagen appears in the wound by 3 to 4 days. Minimal wound strength on day 2 is due to fibrin polymerization and adhesion of globular proteins. Wounds rapidly gain strength for about 4 months and then continue to gain strength at a slower rate for more than a year. Wounds do not regain the strength of normal tissue.
Category: Surgery MCQs
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