Volume Change
Overview
The Volume Change tool will adjust the volume of the socket globally or locally, using slices. This can be used to reduce the volume overall or set circumferences at specific locations.
Video Tutorial
Tool Structure
Utility Bar
Add Slice
Add a slice on the model. The tool is active when the plus sign is blue and slices can be placed or moved by left clicking on the model.
Distributed Slices
Add slices to the model at a set step size. The step size for the slices can be in relation to the MPT or DT landmarks, or the Top or Bottom of the model.
Select Mode
Circumference
- Changing the volume by circumference, either globally or locally by slice.
- Units: percent, ply, or mm
Posterior Only
- Adjusting the volume of only the posterior side of the model, starting at the media-lateral line and going posteriorly.
- Units: mm or percent
Sock (Circumference and Distal)
- Adjusting the volume circumferentially and distally, similar to putting a sock on the limb.
- Units: ply
Note: Ply size can be set and changed in settings, located at the top right of the riiForm Dashboard. The current value will be shown in the tool.
Reset
Reset all Volume Changes, undoing what was done while the tool was open, or reset to the Fit Suggestions.
Tool Body
Slice Position in Relation to
Change the location of a slice. Each slice can be in relation to the Distal Tibia Landmark (DT), Mid-Patellar Tendon Landmark (MPT), Top of the model, or Bottom of the model. The distance can be calculated in mm or inches.
Slice (1, 2, 3, etc.)
Type in the box to customize the slice name. Type a number to adjust the distance from the related position. The slices can also be moved by activating them, click on the tool and the slice will be bold on the model, and left clicking on another location on the limb.
Volume Change Slider Bar
Use the slider bar or type in the box to change the volume.
How to Use
Global Volume Change
- Open the tool and select desired mode and units.
- Use the slider bar or type in the box to adjust the volume.
You can use the Measurements in the Utility Tools to check the socket size as you modify.
Local Volume Change
- Open the tool and select desired mode and units.
- Apply slices onto the limb.
- Use the single plus button to add slices manually by left clicking on the limb while the tool is open.
- Use the distributed slide tool to apply slices at a set interval. Set the Step Size and Unit to apply.
- The are are two ways to change the location of the slices. The first is by selecting the slice so it is active and left clicking on the limb. The second is by choosing the landmark the slice position is in relation to (MPT, DT, Top, or Bottom) and changing the distance in the input box.
- Slices can be removed by clicking on the garbage can icon.
- Use the slider bar or type in the box to adjust the volume.
You can use the Measurements in the Utility Tools to check the socket size as you modify.