Practical podiatry : . here is exten-sive splintering of the bone adjoining the fracture or oneof the fragments. This class of fracture does not occur inthe foot. Impacted Fractures are those in which the fragmentsare driven into each other, forming a wedge, thus prevent-ing abnormal motion, so common in other types. This occursmostly in the neck of the femur. Crushing or Compression Fractures are those in whichthe bones are crushed. The spongy portion and the corticallayer are both involved and in some cases the bones may bepulpified. The tarsal bones are subject to this type offractures as t
Practical podiatry : . here is exten-sive splintering of the bone adjoining the fracture or oneof the fragments. This class of fracture does not occur inthe foot. Impacted Fractures are those in which the fragmentsare driven into each other, forming a wedge, thus prevent-ing abnormal motion, so common in other types. This occursmostly in the neck of the femur. Crushing or Compression Fractures are those in whichthe bones are crushed. The spongy portion and the corticallayer are both involved and in some cases the bones may bepulpified. The tarsal bones are subject to this type offractures as the result of falls from heights, upon the solesof the feet. (See accompanying picture of fracture of theOS calcis.) A simple fracture is one in which a wound of the skinis absent, or if present, there is no connection between itand the broken bone. If the bone is broken in two or more places or if two ormore non-adjacent bones are simultaneously broken, thecondition is called a multiple fracture. X-RAYS IN PODIATRY 401. FRACTURE OF THE OS CALCIS 402 PODIATRY A compound fracture is one in which the fragments ofbone pierce the soft tissues an^ protrude beyond the skin. It is essential in examining a patient who has sufferedfrom a recent fracture^-tot)btain a history of the case aswell as a descriptio5^|of4lie accidelit. An examination ofthe part should be fnsldef-and the Various symptoms suchas deformity, abnormal mobilityand crepitus should benoted. The X-ray picture is then taken and if a fracture isfound, the case should be put in the hands of a competentsurgeon for immediate and proper treatment. Sesamoid Bones. The sesamoid bones which are foundin the flexor tendons under the head of the first metatarsalbones, are subjected to injury in those who follow vocationsin which the ball of the foot is put to great strains. Amongsuch may be mentioned dancers and acrobats. The normalposition of these bones is directly beneath the head of thefirst metatarsal bone, and when this part i
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