sequestrum

A surgeon carefully removes a sequestrum from the patient's leg.

Definition

1. Noun (plural: sequestra):
   • Medical term: A "sequestrum" is a fragment of dead bone that has become separated from the surrounding healthy bone tissue, typically as a result of infection, trauma, or impaired blood supply. This dead bone fragment often acts as a source of persistent infection and may require surgical removal.

Usage Examples

• (A dead bone fragment was detected in the thigh bone.)
• (The dead bone piece was extracted to stop the infection from spreading.)

Advanced Usage

• "Formation of a sequestrum": the process by which a bone fragment becomes necrotic and detached.

  • Chronic osteomyelitis often leads to the formation of a sequestrum. (A long-term bone infection causes dead bone to separate.)

• "Sequestrum removal": a surgical procedure to extract the dead bone fragment.

  • Sequestrum removal is essential for healing in cases of bone infection. (Taking out the dead bone is necessary for recovery.)

Variants and Related Words

• Sequestral (adj): relating to or characteristic of a sequestrum.

  • The sequestral fragment was clearly visible on the scan. (The dead bone piece was easy to see.)

• Sequestration (n): the process of forming a sequestrum or separating dead tissue.

  • Bone sequestration occurs when blood flow is interrupted. (Dead bone separation happens due to poor circulation.)

Synonyms

• Necrotic bone fragment: a piece of dead bone.
• Dead bone segment: a portion of bone that is no longer alive.

Phrasal Verbs

Related Idioms

Note: This term is primarily used in medical and pathological contexts. It is not a common word in everyday language.