Adjust Etac Cross 5 for Posterior Pelvic Tilt
The challenge is to provide a back support that optimizes both with pelvis position and the thoracic back. Start by adjusting the seat to back angle posteriorly to allow the user contact with the back support from the buttocks.
Adjust the lumbar angle to create a balanced trunk and head position. Be sure to provide posterior support with the tension adjustable back strap at PSIS level (1). If extra side stability is needed, add Plush Wedges (2) or Side Cushions (3), supported by straight Side Stops (4) if needed. A properly adjusted Positioning Belt and a contoured seat cushion are also recommended.
1. Pelvic Support
Start with 105-110 degree seat to back angle and set all adjustable back strap set with loose tension. The goal is to position the user as far back on the seat that support can be created with the tension adjustable back straps from the level of PSIS. Adjust the lumbar angle and the back straps to create trunk balance. Carefully try to adjust the seat to back angle forward. If the user reacts by sliding forward or flexes the trunk, reset the seat to back angle.
2. Back Wedges, Plush
There are two lengths to choose between, 15 cm (6") and 30 cm (12") long. Usually the short model is sufficient. Attach the Wedges with the Velcro facing forward, towards the back cover.
3. Side Cushions
Firm cushions with padding towards the user. The cover has a zipper to enable individual contouring with added foam. They are 29 cm (11½") high.
4. Side Stops, Straight
The Side Cushions are supported by the arm supports and/or additional Straight Side Stops. They are easily mounted into the back rail and can be adjusted in height, angle and depth.
5. Positioning Belt
A Positioning Belt adjusted with not less than 70° from the attachment point, helps to prevent forward sliding. Tighten as high up as possible over the thighs. On the Cross 5 frame, there are attachment points for a positioning belt just behind the arm support attachments.