Atlas and epitome of traumatic fractures and dislocations . Fig. 109.—Improper attempt to effect reduction by simple effort merely increases the fixation (button-hole mechanism). the first phalanx, and the thumb is pushed directly for-ward. As soon as more than half of the articular sur-. Fig. 110.—Correct method of reduction; the thumb is overextendedand pushed forward. faces are brought into normal contact, flexion becomes 236 FRACTURES AND DISLOCATIONS. possible and tlie thumb slips into place. The importanceof correctly performing this manoeuver should be empha-sized, but it

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Atlas and epitome of traumatic fractures and dislocations . Fig. 109.—Improper attempt to effect reduction by simple effort merely increases the fixation (button-hole mechanism). the first phalanx, and the thumb is pushed directly for-ward. As soon as more than half of the articular sur-. Fig. 110.—Correct method of reduction; the thumb is overextendedand pushed forward. faces are brought into normal contact, flexion becomes 236 FRACTURES AND DISLOCATIONS. possible and tlie thumb slips into place. The importanceof correctly performing this manoeuver should be empha-sized, but it does not insure successful reduction. A frequent obstacle toreduction is interpositionof the capsule, or, some-times, of a sesamoid other cases attempts atreduction are frustrated bya peculiar behavior on thepart of the tendon of theflexor pollicis longus, whichI have observed both in thecadaver when the dislocationThe tendon surrounds

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfractur, bookyear1902