A treatise on orthopedic surgery . he object of the inclined plane and the lower surfacebeing to utilize the force of gravity to hold the foot in slight DISABILITIES AND DEFOBMITIES OF THE FOOT. 733 adduction. The foot should be at an angle with the leg, corre-sponding to its usual position in the shoe, that is slightly plantarflexed and the sole should be in the plane perpendicular to the Fig. 481. ? ^^^^^^^B -v ^•^ J A cast marked for the mechanic. In most instances the internal flange Ismade as in this illustration, as compared with Fig. 485, In order to strengthenthe support so that light
A treatise on orthopedic surgery . he object of the inclined plane and the lower surfacebeing to utilize the force of gravity to hold the foot in slight DISABILITIES AND DEFOBMITIES OF THE FOOT. 733 adduction. The foot should be at an angle with the leg, corre-sponding to its usual position in the shoe, that is slightly plantarflexed and the sole should be in the plane perpendicular to the Fig. 481. ? ^^^^^^^B -v ^•^ J A cast marked for the mechanic. In most instances the internal flange Ismade as in this illustration, as compared with Fig. 485, In order to strengthenthe support so that light steel (gauge 20) may be used. (See Fig. 485.) seat of the chair; the toes need not be included (Fig. 482). Assoon as the plaster is hard its upper surface is coated withvaseline or talcum powder and the remainder of the foot is coveredwith plaster; the two halves are then removed, dusted withtalcum powder, bound together, and filled with the plastercream. In a few moments the outer shell may be removed, and Fig. 482. Fig. The lower half of the plaster mould. The plaster mould completed. one has a reproduction of the foot, which, when properly made,should stand upright without inclination to one side or the other(Fig. 481). 734 OBTEOPEDIC SUSGEBY. Fig. 484. In most instances it will be of advantage to deepen in theplaster model the inner and outer segments of the arch, in orderthat the arch of the brace maj be slightly exaggerated, especiallyat the heel, so that the depression of the anterior extremity ofthe OS calcis may be prevented. If the outer border of the castis flattened by pressure a little plaster should be added to ap-jDroximate the normal rounded contour of the foot. The —Upon the model theoutline of the brace is drawn asillustrated in the diagrams. Thebest sheet steel, 18 to 20 gauge,cut after the pattern is mouldedupon it and tempered, so that asit is applied for the purpose ofpreventing deformity, it may bepractically unyielding to the weightof th
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Keywords: ., bookauthorwhitmanr, bookcentury1900, bookdecade1910, bookyear1910
