. Atlas and epitome of traumatic . ion 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 theliving subject and on the cadaver when the dislocation,had been produced artificially. The tendon surroundsthe neck of the firstmetacarpal bone ; if thearticular surface of thecapitellum is greatlythickened on its ulnarside, as sometimes hap-pens, the tendon maycatch on this thickened rim and form an insurmountable obstacle to reduc
. Atlas and epitome of traumatic . ion 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 theliving subject and on the cadaver when the dislocation,had been produced artificially. The tendon surroundsthe neck of the firstmetacarpal bone ; if thearticular surface of thecapitellum is greatlythickened on its ulnarside, as sometimes hap-pens, the tendon maycatch on this thickened rim and form an insurmountable obstacle to condition may sometimes be recognized by the thumb being slightly rotated andinclined toward the ulnarside and the tendon maysometimes, but not by anymeans always, be disen-gaged by increasing thisinclination toward the ul-nar side. In exceptional cases itmay happen that during the attempts at reduction, espe-cially if traction is improperly applied to the thumb, thecapsule and the external sesamoid bone become completely. Fig. 112.—Reduction is prevented bythe interposition of the sesamoid bone.
Size: 2979px × 839px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidatlasepitome, bookyear1902
