Friday, 10 December 2021

Breaking News: FUNNY BONES, fragment #2

This blogpost represents a continuation of an earlier post, entitled (not surprisingly) "Funny Bones, fragment #1". Click HERE to review that background information.

HETEROTOPIC OSSIFFICATION, Myositis Ossificans   (OEDILF #T527921)
Heterotopic formation,
Extra-skeletal ossification:
Post-trauma, new bone
Seems to grow on its own —
Interferes with your re-ambulation.
Rarely, joints get encased, as in stone.

Usually asymptomatic, new bone formation in extra-skeletal sites seems to occur after physical or surgical trauma, particularly in the lower limbs following joint replacement. Occasionally, within several weeks after the inciting episode, tenderness and swelling near major joints may occur, needing to be differentiated from venous blockage, and requiring bone scanning for detection, as initial radiographs may be negative; this variant syndrome is known as myositis ossificans. Rarely, in progressive cases, surgery is eventually required to allow normal mobility at affected joints.

Temp AN:


"Mid-foot pain," I complain, "I'm no crank.
My foot suffered a serious yank.
ORIF stat I've requested
As my plain films suggested
The fracture type known as Lisfranc."
"ER staff and consultants, I thank."

ORIF: initialism for surgical intervention for bone fractures — open reduction, internal fixation

plain films: medical jargon for two-dimensional x-ray studies as opposed to CT, although digital media, not 'film' emulsion, are now generally used to analyze and record the images

With these injuries, involving one or more fractures, metatarsal bones of the lower foot are dissociated from the tarsus, making the mid-foot unstable. They were first observed in cavalry men during the Napoleonic Wars and later described by a French surgeon, Jacques Lisfranc de St-Martin. In English medical jargon they are known as Lisfranc (LIZ-frank or liz-FRANK) fractures. Self-diagnosis of this type of injury by a patient would be an unusual event.


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