The question of operative fixation rarely needs consideration; it occasionally happens, however, that oblique fractures, such as one mentioned on p. 166, are met with, in which screwing or wiring of the bone ends is advisable. What has been said above as to fractures, accompanied by loss of continuity, applies equally to cases of severe wedge-fracture, where many loose fragments exist.
As to the disinfection of the limb, primary cleansing, mainly by soap and water, of course precedes the exploration, and when the latter has been carried out a second cleansing and disinfection, preferably with spirit and carbolic acid lotion, are imperative.
Immobilisation is a more difficult problem. In practised hands plaster-of-Paris splints answer most requirements except in the case of the thigh; but the splints take time to apply and also to set firmly, and, as sometimes needing frequent removal, are not altogether suitable for Field hospital work. Of all the splints I saw in use, I think the best were wire splints, and the Dutch cane folding splints for the thigh and leg (figs. 56, 58); wire-gauze splints with steel at the margins (fig. 54), or strips of ordinary cardboard applied with some variety of adhesive bandage for the arm and forearm; and plain wooden of various lengths for any situation.
A question of constant difficulty was that of frequency of dressing; in a Stationary or Base hospital this is not difficult, as the same surgeon has the patient continuously under his charge, and can readily decide as to the proper moment for the renewal of the dressing. When the patient is, however, being moved from the Field to the Stationary hospital, and thence to the Base, a constant succession of surgeons has the case in hand for short periods, the movements during transport disturb the fixity of the dressing, and, in consequence, dressings are apt to be far more frequent than is advisable. This question raises the larger one of the advisability of any transport beyond what may be an actual necessity. There is only one answer to this. No fractures of the thigh or leg, and few of the arm, can be transported for any distance without material disadvantage. The risks attendant on disturbance of the fracture and tissue injury, septic infection as a result of slipping of the dressing and the impracticability of efficiently renewing it, far more than counterbalance any advantage to be gained from the superior comforts available at a Base hospital. For these reasons, if possible, all fractures of the arm, thigh, or leg should be kept at a Stationary hospital for a period of three or more weeks, and, as far as splints and appliances are concerned, these should be as numerous and complete as at a Base hospital. I have had a useful set made of aluminium. A word will be added later as to the splints suitable for different regions of the body.
The necessity for primary amputation chiefly depends on the nature of the injury to the soft parts, less commonly on the extent of the injury to the bones, and should be decided on exactly the same lines as in civil practice. So-called intermediate amputations are always to be avoided if possible; the results were consistently bad, and the operation should only be undertaken in cases of severe sepsis where little can be hoped from it, or for secondary hæmorrhage. When the operation could be tided over until the septic process had settled down and localised itself, secondary amputation gave very fair results. In either intermediate or secondary amputation for suppurating fractures, it was necessary to bear in mind the special likelihood of the existence of extensive osteo-myelitis. If this condition affected the upper fragment, an amputation was of little use unless the whole bone was removed, as septic infection continued and brought about a fatal issue, or a fresh amputation was required in order to obtain a stump that would heal.
Special Fractures
Upper Extremity.—Fractures of the scapula were not uncommon, but were mostly of the perforative variety; thus perforations both of the spine in longitudinal wounds of the back, and of the ala in perforating wounds of the thorax, were tolerably frequent. They possessed little practical interest; as a rule, the openings were not large, and the most unexpected feature was the small interference with the movements of the bone on the chest wall that resulted. It might be assumed that comminuted fragments would project into the muscles and cause both pain and interference with movement; but neither was the case. I saw grooving of the crest of the spine, but never happened to meet with a fracture of the acromion process. Many axillary tracks passed in the closest proximity to the coracoid, but this again I never saw separated. One practical point of importance with regard to the scapula was the frequency with which bullets lodged in the venter, or the firmly bound-down muscles of the supra- and infra-spinous fossæ. These retained bullets often gave rise to remarkably little trouble in this situation; thus I have a skiagram of a shrapnel bullet lying in the deepest part of the subscapular fossa, which did not inconvenience its possessor.
Fig. 53.
Head of Humerus, showing broken perforation. The roof forms a hinged covering to a groove