Figs. 19 and 20.—Simple pelvic suspension, with details of the joint at the hip.
A. Suspension by means of a waist belt.—For the peg leg made of leather the best method consists in placing a pelvic plate, which is attached to the hip steel, below the iliac crest (Figs. 20 to 24). A belt attached to the extremities of this plate surrounds the pelvis and passes above the iliac crest on the other side. The thigh piece is attached to this support, on the outer side, by articulation of the outer femoral steel with the hip steel; on the inner side, by a perineal strap. Braces complete the method of suspension of the apparatus (Fig. 21).
Fig. 21.
The axis of the metal joint between the outer femoral steel and the lower end of the T piece should be directly above the great trochanter ([Fig. 20]).
The femoral steel often breaks in the neighbourhood of this joint ([Fig. 23]); we have got over this difficulty by adding immediately beneath it a joint which allows of abduction ([Fig. 19]). A perineal strap limits this movement.
Fig. 22.