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skos:definition |
UMD: Cushions or pads that the patient leans against in order to relieve or prevent back pain caused by extended periods of sitting, herniated disks, surgery pain, tension, muscle spasms, poor posture, or problems associated with wheelchair use. Backrests are usually nylon-covered foam but can also be inflatable or gel-filled for adjustable support or based on wood or hard plastic for solid support. They can be used in chairs, wheelchairs, or car seats.
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