Reproduction
Object numberRCSHC/P 575
Scientific nameHomo sapiens
CollectionHunterian
CategoryDry preparations
Object nameUlna, Pseudarthrosis, Morbid Anatomy of Bones - Non-Union and False Joints, Mounted dry bone
DescriptionA right ulna showing a transverse fracture of the mid-shaft with the formation of a false joint.
The distal half of the shaft has been longitudinally sectioned to show the structure of the pseudarthrosis. The distal portion has been displaced medio-laterally, with the distal end angled laterally. External callus has formed a lip at the fractured ends of both portions, although no union has been made, with a considerable deposit of new bone on the medial side of the fracture site. Internal callus has sealed the exposed medullary cavities, and little evidence of inflammation is seen on the bone.
Production date Estimated 1760 - Estimated 1793
Preparator
Owner/user
presented
Physical Location
LocationOn display in the Hunterian Museum, Room 4: The Long Gallery
Physical Information
Physical descriptionDry preparation of bone mounted in a circular glass jar with glass lid.
Materialglass (material)
Dimensions
whole height: 304 mm
whole diameter: 84 mm
whole weight: 730 g
whole diameter: 84 mm
whole weight: 730 g
Bibliography
SourceProger 1966-1972
Vol. 2, page 29.
NotesText taken from Shattock (1909-19).
TranscriptA right ulna which has been transversely fractured through its middle, and between the fragments of which a false joint has formed.
Each of the fragments is lipped with external callus; the medullary canal at the site of the fracture is filled with internal callus, and the broken surface of the compact wall is covered with intermediate. No union has occurred, however; the apposed and articulating surfaces of the callus of the two fragments being smoothly closed with a thin layer of compact bone. The lower fragment is displaced slightly inwards at an angle with the upper.
SourceClift 1830 Part 2
NotesCatalogue number is 58.
TranscriptAn ulna, fractured near its middle, and not united; the fractured ends forming an artificial joint. [A section of the bone has been made, which shows that the medullary canal is obliterated at this part, in consequence of the deposit of ossific matter.]
