A practical treatise on fractures and dislocations . HE LOWER JAW. Or 55 examples of fracture of this bone which have been recorded byme, not including, gunshot fractures, 52 were broken through some por-tion of the body. An analysis of 45 of the above examples shows that16 were broken completely asunder at two or more points, constitutingdouble and triple fractures; and of the remainder, 5 were accompaniedwith detachment of portions of the alveoli, and one with detachment ofa considerable fragment from the body. 13 were compound; not in-cluding in this enumeration several examples in which th
A practical treatise on fractures and dislocations . HE LOWER JAW. Or 55 examples of fracture of this bone which have been recorded byme, not including, gunshot fractures, 52 were broken through some por-tion of the body. An analysis of 45 of the above examples shows that16 were broken completely asunder at two or more points, constitutingdouble and triple fractures; and of the remainder, 5 were accompaniedwith detachment of portions of the alveoli, and one with detachment ofa considerable fragment from the body. 13 were compound; not in-cluding in this enumeration several examples in which the partial orcomplete dislodgment of a tooth might entitle them to be called com-pound. Four fractures through or near the symphysis were nearly orquite vertical, and most of the others were known to be oblique. Malgaigne has remarked, also, that in fractures of the body of the bone thedirection of the obliquity is generally such that the anterior fragment is madeat the expense of the internal face of the bone, and the posterior fragment at Fig. the expense of the external face, this latter overriding the former. Buck, ofNew York, has seen the fragments in an opposite condition, requiring the useof the knife and saw for their I have myself recorded one similarexample, but in which the fragments were easily replaced. In 30 examples of fractures through the body, not including fracturesof the symphysis, the line of fracture has been observed to be 20 timesat or very near the mental foramen, 3 times between the first andsecond incisors, 4 times behind the last molar, and 3 times between thelast two molars. Boyer was of the opinion that a fracture never takes place in thesymphysis of the chin ; but many surgeons since his time have noticedthis fracture, and Malgaigne assures us that J. Cloquet has demonstratedits existence upon an anatomical specimen. 1 Buck, New York , Sept. 19, 1846. Med., March, 1847. Proceedings of X. Y. Med. and Surg. 112 FRACTURES O
Size: 1954px × 1278px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjec, booksubjectfractures
