Finger to floor distance

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The finger-floor distance , abbreviated to FBA, is a medical examination used to assess the overall mobility of the spine , hips and pelvis . The distance between the floor and fingertips is measured with maximum forward bending, with the knees remaining straight. The finger-floor distance is normally between 0 cm and 10 cm, but negative values ​​can also be documented in young, mobile people, and the person being examined is placed on a higher level to measure them.

Since the finger-floor distance is also influenced by, among other things, limited hip joint mobility and flexion contractures , the absolute value for spinal diseases is often only of limited significance. The repeated measurement can, however, be used together with other functional examinations of the spine (such as Schober and Ott signs ) for simple monitoring of the progress of spinal diseases such as ankylosing spondylitis .

The finger-floor distance is regularly given as a measured value in medical reports (e.g. for employers' liability insurance associations ) for reduced earning capacity or occupational disability as a result of illnesses or injuries to the spine, pelvis and hips.

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