Wood splinter foreign body

Figure 26-17 Example of a wood splinter foreign body (arrow). (Courtesy of Pat Caroline.)...

Unfortunately, the currently available prediction tools and definitions fail as soon as we subject the tissue and implant to dynamic mechanical stimulation. Let us consider the simplest case of a wood splinter in your foot. The normal tissue reaction you will receive is early inflammation, and if the splinter is deeply buried it will be encapsulated with coUagen in the process we call foreign body reaction or fibrotic capsule formation. There wiU, however, be a significant difference in the response depending on if you walk and put pressure on the tissue surrounding the splinter or if you completely unload this tissue. Excessive dynamic mechanical stimulation of the tissue will cause prolonged inflammation and also the formation of a thicker collagen capsule than would be the case if you completely rest the same splinter—tissue. 

Foreign bodies can be found in the subcutaneous tissues as the result of traumatic injuries or therapeutic procedures. In a post-traumatic setting, foreign bodies derive from open or penetrating wounds. Most are composed of plant fragments (wood splinters, thorns, etc.), metal or glass. In terms of prevalence, wood fragments are the most frequently found, fol-... 

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