. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. It is only in cases where the fracture is situated so high as an inch and a half, or more, above the joint, that any abnormal ap- proximation of the bones towards each other, and ultimate obliteration of the interosseous interval is to be dreaded. Although therefore, as a result of Colics' fracture, we observe the forearm assume, near the wrist-joint, a cylindroidal form, there may be no real narrowing whatever, but the ap- pearance of it may be attributed rather to an , in the antero-posterior diameter of the r
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. It is only in cases where the fracture is situated so high as an inch and a half, or more, above the joint, that any abnormal ap- proximation of the bones towards each other, and ultimate obliteration of the interosseous interval is to be dreaded. Although therefore, as a result of Colics' fracture, we observe the forearm assume, near the wrist-joint, a cylindroidal form, there may be no real narrowing whatever, but the ap- pearance of it may be attributed rather to an , in the antero-posterior diameter of the region of the wrist, than to any real diminution which occurs transversely. Malgaigne has, however, adduced an example to explain how, in certain rare cases, a diminu- tion of the transverse diameter of the forearm may occasionally take place, and by the action of the pronator quadratus not on the inferior, but on the upper fragment of the radius. (fig. 93:2.) It is said by some, that crepitation, caused by the movements of the fragments of the broken radius on each other, can always be elicited, and that this sign is diagnostic of fracture; moreover, that the deformity is easy to reduce by extension, but liable to return when the extending force is removed. •Such observations, no doubt, may sometimes be made with truth. For our own parts, we do not think that crepitation can, except in a very few cases, be elicited in Colics' fracture of the radius. We have found it to be an injury attended with a deformity which can, it is true, he i enioved by extension, but our experience corresponds wiih that of Sir After Malgaigne. Diagnosis.— In many cases, a fracture of the radius in the immediate vicinity of the wrist- joint is attended with so much deformity, and accompanied with such characteristic appear- ances, that the observation oi'Pouteau appears well founded, that it can be recognised at the first " coup d'ceil;" but on the other hand, there are some cases in
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