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  • Title: Does aspiration of bones and joints affect results of later bone scanning?
    Author: Canale ST, Harkness RM, Thomas PA, Massie JD.
    Journal: J Pediatr Orthop; 1985; 5(1):23-6. PubMed ID: 3156878.
    Abstract:
    To determine the effect, if any, of needle aspiration on 99mTc bone scanning, three different areas of 15 dogs were first aspirated and then imaged with technetium bone scintigraphy. The hip joint was aspirated, the distal femoral metaphysis was drilled and aspirated, and the tibial periosteum was scraped with an 18- or 20-gauge needle. Varying amounts of trauma were inflicted to simulate varying difficulties at aspiration. 99mTc bone scans were obtained from 5 h to 10 days later. There was no evidence of focal technetium uptake after any hip joint aspiration. This was consistent regardless of the amount of trauma inflicted or the time from aspiration to bone scanning. Metaphyseal cortical drilling and tibial periosteal scraping occasionally caused some focal uptake when scanning was delayed greater than 2 days. When osteomyelitis or pyarthrosis is clinically suspected, joint aspiration can be performed without fear of producing a false-positive bone scan.
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