extraperiosteal

ex·tra·per·i·os·te·al

(eks'tră-per'ē-os'tē-ăl),
Not connected with, or unrelated to, the periosteum.
References in periodicals archive ?
47) The subperiosteal resection was later altered to extraperiosteal removal of the distal ulna to prevent regeneration of the distal ulna.
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