. A radiographic atlas of the pathologic changes of bones and joints . PLATE XIJJ. — so — PLATE XIV. NORMAL rnOT—PLANTAR VIEW. The cuboid articulates with the os calcis behind, with the externalcuneiform on the inner side, and with the 4th and 5th metatarsal bonesin front. The scaphoid articulates with the astragalus behind and the three cunei-form bones in front. The internal cuneiform articulates with the metacarpal bone of tlie bigtoe, the middle cuneiform and the scaphoid. The external cuneiform is hidden by the middle cuneiform and by thecuboid, but its rectangular shadow, articulating wi
. A radiographic atlas of the pathologic changes of bones and joints . PLATE XIJJ. — so — PLATE XIV. NORMAL rnOT—PLANTAR VIEW. The cuboid articulates with the os calcis behind, with the externalcuneiform on the inner side, and with the 4th and 5th metatarsal bonesin front. The scaphoid articulates with the astragalus behind and the three cunei-form bones in front. The internal cuneiform articulates with the metacarpal bone of tlie bigtoe, the middle cuneiform and the scaphoid. The external cuneiform is hidden by the middle cuneiform and by thecuboid, but its rectangular shadow, articulating with the cuboid, thescaphoid, the middle cuneiform, and the 2d, 3d and 4th metatarsal bones,can be distinctly made out. Note the structure and the articulation of the metatarsal bones PLATE XIV. — 53^ PART OF BONES AND JOINTS. OSTEOMYELITIS. Osteomyelitis usually affects the shaft of one of the long bones,it may be in close proximity to the joint, but rarely involves thelatter, except secondarily in cases of long standing. It is recog-nized on the radiogram by the lighter area of bone and marrowrarefaction, the surrounding darker areas of bone condensationand in some cases the presence of sequestra (Plate XVI) The afifection causes a softening of the marrow and a suppura-ative osteitis, which in some cases becomes circumscribed by aprocess of osteosclerosis. The periosteum is usually swollen andoedematous (Plate XV). In other cases the medullary cavity becomes involved as the pusaccumulates and the walls of the bones may be broken throughpermitting the discharge of pus outward, with secondary involve-ment of the soft parts (Plates XVII, XIX, XX). As a result ofthese changes, necrosis of greater or lesser portions of the bonemay ensue with the formatio
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidradiographicatla00gran
