Page 15 - JSOM Spring 2021

FIGURE 1 Limb positions.
(A) (B)

(C) (D)

(E) (F)

(A) Sitting thigh application leg bent position.
(B) Sitting thigh application leg straight position.
This shows the leg straight in a leg straight first
application. (C) Laying thigh application leg bent
position. (D) Laying thigh application leg straight
position. (E) Sitting arm application bent position.
(F) Sitting arm application straight position.

3C and D (p = .163). Sitting arm circumferences are shown in first applications (bent) than in the straight leg applications (p
Figure 3E and F and decreased with elbow straightening in the = .751). Laying thigh tourniquet pressures did not change in a
three recipients (p = .053). consistent direction when starting with the hip and knee flexed
(Figure 3C). When starting with the entire leg straight, laying
Pressures thigh tourniquet pressures increased going from the entire leg
Sitting thigh tourniquet pressures at the achievement of oc- straight to hip and knee flexion and decreased going back to
clusion were higher in the bent knee first applications than the entire leg straight (Figure 3D).
in the straight knee first applications (p = .013). Sitting thigh
tourniquet pressures increased with knee straightening and de- Sitting arm tourniquet pressures at the achievement of occlu-
creased with knee bending regardless of bent or straight knee sion were lower in the bent elbow first applications than in the
starting position (Figure 3A and B). straight elbow first applications (p = .026). Changes in tour-
niquet pressures with limb position changes were only visibly
Laying thigh tourniquet pressures at the achievement of occlu- interesting in the recipient with the largest arm circumference
sion were not significantly different in the hip and knee flexed (Figure 3E and F).

Limb Position and Tourniquet Pressure | 13