On examining the sore, Ormangey saw a bony sequestrum which appeared to keep it open.
"Anomalies and Curiosities of Medicine" by George M. Gould
Sometimes the separated and displaced epiphysis dies and constitutes a sequestrum.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
Hence, numerous openings are made through the involucrum, to permit the escape of the sequestrum.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
In some cases a sequestrum is formed, either on the surface or in the interior of a vertebra.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
It is, however, a sequestrum forceps.
"Surgical Instruments in Greek and Roman Times" by John Stewart Milne