Sequestrum

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Related to sequestrectomy: periosteotomy

sequestrum

[si′kwes·trəm]
(medicine)
A piece of dead or detached bone within a cavity, abscess, or wound.

Sequestrum

 

a piece of tissue that has died as a result of a circulatory disorder and become separated from the surrounding healthy tissue. A sequestrum may develop, for example, during osteomyelitis. Sequestration may also occur in lung, tendon, or muscle tissue. While in the body, a sequestrum continuously promotes the suppurative process. A sequestrum may be discharged from the body with the flow of pus; sometimes, however, it is necessary to remove it surgically