. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. I. Knuckle Fracture (Fracture of a Meta- CARP.\L bone just BEHIND THE HEAD). Fig. Fracture of the Base of the First Meta-carpal. differentiated from dislocation of the carpo-metacarpal joint for which it is frequentlymistaken by the inexperienced. Dislocationis very rare. This type of fracture occursrather frequently. The .r-ray is very useful. Fig. 3. Fracture of the Scaphoid and Dislocationof the Semi-lunar (see this particular case—fracture of the styloid of the r.\dius also). Etiolog\.—Fracture of one or mo


. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. I. Knuckle Fracture (Fracture of a Meta- CARP.\L bone just BEHIND THE HEAD). Fig. Fracture of the Base of the First Meta-carpal. differentiated from dislocation of the carpo-metacarpal joint for which it is frequentlymistaken by the inexperienced. Dislocationis very rare. This type of fracture occursrather frequently. The .r-ray is very useful. Fig. 3. Fracture of the Scaphoid and Dislocationof the Semi-lunar (see this particular case—fracture of the styloid of the r.\dius also). Etiolog\.—Fracture of one or more car-pal bones may be due to severe directviolence and associated with fracture ofthe radius and ulna. Fracture of the scaph-oid is caused by a fall on the pronatedhand. There are several varieties, nameh:(a) fracture without displacement; (b) frac-ture (two or more fragments) with dis-placement ; (c) fracture with displacement K, i dt


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