Spinal Cord Wheelchair Prescription Flashcards
Goals of a therapist when fitting a patient for a WC
- Provide pelvic & trunk stability
- Optimize function for ADLs
- Protect the skin to prevent and/or heal existing pressure injuries
- Max comfort for patient
- Max unwanted movement
- Correct or accommodate for postural abnormalities
- Prevent the progression of postural abnormalities
What is DME
- The Durable Medical Equipment (DME) benefit category was created over forty years ago to support the medical equipment needs of elderly individuals
What is CRT
- Complex rehab technology (CRT)
- Highly configurable manual and power wheelchairs
- Adaptive seating and positioning systems
- Other specialized equipment that is prescribed to meet the specific medical needs of individuals with disabilities and chronic medical conditions
- Problem is these highly specialized products are still categorized under the broad durable medical equipment (DME) benefit category
Wheelchair fitting for a patient is a team approach (True/False)
- True
Good indicators that your patient would benefit from wheeled mobility
- Patient is non-ambulatory
- Demos decreased safety with ambulation or is at risk for falls within the home
- Requires assistance for ambulation within the home & wheeled mobility would allow independence
- Requires increased time for ambulation within the home
- Unable to consistently ambulate throughout the day in the home which affects their ADLs
Questions to help justify your patient’s need for a wheelcahir
- Does your pt have a mobility limitation that significantly impairs his/her ability to participate in one or more MRADLs in the home?
- Can the mobility limitation be resolved by a cane or walker?
- Do they have the desire or capability to propel o WC?
- Does the pt’s home have the space/layout for functional WC use?
Describe wheelchairs for short-term use
- K levels 1-3
- These chairs are heavier, basic manual PCs with minimal adjustability & are most appropriate for short term use
Describe wheelchairs for long-tern use
- K level 4: Pt qualifies for a basic manual chair but requires a seat width, depth, or height that can’t be accommodated by a basic MWC; unable to perform all ADLs efficiently in a basic MWC; they use a WC more than 2 hrs/day
- K level 5: Pt is a full time WC user, Pt requires customization such as axle configuration wheel camber angle or seat to back angle that can’t be accommodated by a K level 1-4; requires an evaluation by a pt/OT, a letter of medical necessity, & the involvement of an ATP in the equipment selection process
When is a tilt in space appropriate
- Pt is dependent in mobility
- Pt is unable to perform independent pressure relief
- Pt requires gravity assisted positioning/repositioning
- Pt requires postural support, head & trunk control, and accommodation of postural asymmetries
- Goal is to increase sitting tolerance/endurance
- Pt needs improved line of sight due to forward head posture
- Pt will benefit from trunk support & open thoracic posture for increased respiratory function
- Pt requires safe positioning for feeding/gravity assisted swallowing
Criteria for a power wheelchair
- Meets all criteria for manual WC
- Pt is unable to propel a manual WC due to UE limitations: strength, coordination, pain, ROM, etc.
- The home as adequate access for maneuvering of the power chair
- Use of the power WC will significantly improve their ability to perform MRADLs
A scooter will often be ruled out due to
- Poor trunk strength
- difficulty with transfers
- Poor endurance
- Existing postural abnormalities
- Large turning radius
Criteria for a group 2 power WC
- Meets all of the basic power WC criteria
- Group 2 models are typically characterized by “captain’s seating”
- The pt is unable to safely transfer, operate, & maintain postural stability in scooter
- The home does not provide adequate access for operating scooter
- Pt is able to safely operate a power WC or has a caregiver willing to operate who cannot push a manual WC
- Will improve the ability to participate in MRADLs in the home
- Some models have multi power options available if they qualify for a tilt/recline system or if they use a ventilator that mounts to the chair
Criteria for a group 3 power WC
- Meets all criteria for a basic power WC and group 2 power
- Pt has a neurological condition, myopathy, or congenital skeletal deformity
What makes a group 3 power WC different from a group 2 power WC
- Allows integration of rehab seating, & typically has better drive wheel suspension
- Offer multiple alternative drive control options
- Offer the option of power tilt, recline, and/or power legs, & power elevate
- Higher turning radius & increased speeds
What is each body part doing during neutral pelvic posture and what is the goal
- Goal: maintain proper alignment with an appropriate cushion & back support
- Pelvis is in midline with no pelvic tilt, no obliquity, & no rotation
- Spine is balanced & upright with no rotation and no lateral curvature
- Head is functionally upright with only mild forward/lateral flexion or rotation
Describe a fixed deformity
- Fixed = accommodate
- When a posture is fixed the skeleton does not move out of the posture
- Pt needs equipment that will accommodate the fixed posture providing optimal support & pressure redistribution
- Goal = preventing further progression
Describe a flexible deformity
- Flexible = correct
- When a posture is flexible the skeleton still moves & equipment should be chosen with the goal to correct the abnormal posture
- Goal = prevention from becoming a fixed posture
What is each body part doing during anterior pelvic tilt and what is the goal
- Goal: utilize cushion & back support that maximizes contact with seat surface, stability, & look for moldable back support to conform to the curvature of the spine
- Pelvis sits with PSIS higher than the ASIS
- Spine has excessive lordosis in the lumbar and cervical spine
- Head has excessive lordosis of cervical spine causing hyperextension of the neck & upward eye gaze
What is each body part doing during pelvic obliquity and what is the goal
- Goal: pressure redistribution, flexible = level the pelvis by building up lower side, & fixed = accommodate for the deformity
- Pelvis sits with L/R ASIS higher than the other
- Thoracic spine curves away from the side of the raised hip
- Neck laterally flexes into the side where the hip is higher
What is each body part doing during pelvic rotation and what is the goal
- Goal: stabilize pelvis in most neutral position and consider an anti-thrust cushion to reduce forward migration of the pelvis
- Pelvis sits with L/R ASIS more forward than the other
- Thoracic spine follows & rotates in the same direction as the pelvis
- Neck will go into lateral flexion as if the person is dropping the ear to his or her shoulder
What is each body part doing during windswept posture and what is the goal
- Goal: avoid use of ELRs that decrease femoral contact with seat surface & promote windswept posture, often accompanied by rotation or obliquity of the pelvis, & look for a cushion that can be adjusted
- Pelvis goes hand in hand with a rotation of an obliquity causing one leg to adduct and the other leg to abduct
- Spine will present with a rotation or scoliosis
- Neck will go into lateral flexion & may be accompanied by forward flexion
What are the top 8 measurements you MUST do for wheelchair fitting
- Shoulder width
- Chest width
- Hip width
- Seat to top of shoulder
- Inferior angle of scapula
- Seat to elbow
- Upper leg length
- Lower leg length
What happens to the skin, tissue, & bone when constant pressure is applied without the appropriate pressure redistribution in the cushion & back support
- Initially it affects only the superficial epidermal layer causing a reddening of the skin (skin is still intact)
- Eventually the pressure moves into the dermis breaking the skin open & causing an open wound (blisters may appear)
- Continued pressure damages deeper into the hypodermic now affecting all 3 layers of skin
- Injury depth reaches the tissue under the skin potentially as low as the muscle & bone
What are the mechanics of sheer force
- Gravity causes downward pressure from prolonged sitting
- Pt moves/slides in the chair causing friction
- Skin/tissue at the seat surface DOESN’T move while the underlying bone structure DOES
- Skin/tissue is strained by the combined pressure & friction
- Permanent cell deformation & distortion occurs at the deeper layers of tissue
- Blood vessel damage decreases oxygen delivery
- Ischemia
- Result is tissue death
Define offloading
- Principle of taking pressure off of a small surface area & loading it onto a greater surface area that can withstand more pressure & prevent unwanted skin breakdown
Define immersion
- Principle of conforming to the person’s curvature by “sinking the body in”
- We allow the cushion and/or back support to take the body’s shape alleviating the bony prominences from unwanted peak pressure to maximize pressure redistribution
Benefits of using an offloading style cushion
- Firmer surface creates a safer end feel for pt
- Provides more stability
- Partially or completely suspends the ischial tubs, sacrum, and coccyx
- Redistributes pressure to areas that can withstand more pressure
Considerations if using an offloading style cushion
- NOT good for pts with trochanter wounds
- May not be suitable for pts with hypersensitivity
- Stable surface may be more difficult for independent transfers
- Pt with contractures may not fit the pre-contoured shape
Benefits of using an immersion cushion
- Less firm surface ideal for pain management
- Curvature increases pressure redistribution
- Good for any type of pressure injury at any stage
- May be easier for independent transfers
- Reduces peak pressures at the bony prominences
Considerations when using an immersion cushion
- Less stable surface
- May not be suitable for someone who desires proprioceptive input from a firmer surface
- Some cushions require more maintenance & if not properly maintained can increase risk of a pressure injury
Slide 37
What should you check if your patient keeps sliding out of the wheelchair
- Check for tightened hamstrings
- Check hip ROM
- Check seat depth
- Check seat to floor height
- Check trunk stability & strength