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Bony Rings and "ring fractures"

Smirniotopoulos, M.D. JGSM - MedPix (2014)

View Article: MedPix Image - MedPix Topic

Affiliation: Uniformed Services University

ABSTRACT

There were several good questions at the end of my lecture - and one of them I would like to answer for all of you - about "bony rings". In the forearm, the radius and ulna form a "bony ring"; in the calf, its the tibia and fibula. Other bony rings include; the neural arch (posterior elements) of the vertebral bodies; the foramen magnum of the skull; the orbital rim; the obdurator ring (foramen) of the pelvis; and, the whole pelvis. This is an experiment you can do for yourself: Take two No. 2 pencils and two rubber bands. The pencils are the radius and ulna of the forearm; and, the rubber bands represent the ligaments of the wrist and elbow joint. Now, after carefully building this model ... can you break just one pencil, without opening the joint at either end?

No MeSH data available.


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Bony Rings and "ring fractures"

Smirniotopoulos, M.D. JGSM - MedPix (2014)

© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX2614&req=5

View Article: MedPix Image - MedPix Topic

Affiliation: Uniformed Services University

ABSTRACT

There were several good questions at the end of my lecture - and one of them I would like to answer for all of you - about "bony rings". In the forearm, the radius and ulna form a "bony ring"; in the calf, its the tibia and fibula. Other bony rings include; the neural arch (posterior elements) of the vertebral bodies; the foramen magnum of the skull; the orbital rim; the obdurator ring (foramen) of the pelvis; and, the whole pelvis. This is an experiment you can do for yourself: Take two No. 2 pencils and two rubber bands. The pencils are the radius and ulna of the forearm; and, the rubber bands represent the ligaments of the wrist and elbow joint. Now, after carefully building this model ... can you break just one pencil, without opening the joint at either end?

No MeSH data available.