Public forum - Last update 14.12.2015

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Sensory Functions


26.08.2014

If a person has absent vibration sense in both toes but present in both ankles, this would presumably score a 3 (marked - complete loss). But what would it score on the FSS? A 1 (mild decrease in one or two limbs) or a 3 ("essentially lost vibration in one or two limbs") - ie does the FSS score refer to distal loss or overall limb loss?


The FS score refers to distal loss of vibration sense, so in this case it would be a 3, because of marked reduction of vibration in two limbs.


26.11.2010

What is the superficial score of a patient with impairment of sharp and dull when testing, but not aware of the deficit, without no other signs in superficial sensation and vibration sense, position sense, what is the FS score?


Formally according to the evaluation guidelines (see chapter 5 in the definition booklet) an impaired discrimination is already a moderate grade in superficial sensation and, depending how many limbs are involved, will result in a FS-Score (if there are no other signs or symptoms in this Functional System) of 3 or even more. On the other side it is difficult to conceive that a patient has such severe sensory deficit without complaining about sensory disturbance at all. Probably there is an attention deficit or a problem in cooperation or not taking the examination seriously enough. Here a judgement of the investigator is required using experience and common sense.


29.11.2007

If a patient has a change in superficial sensation on the trunk, is the trunk considered a limb?


The trunk is considered a separate limb, if the sensory deficit is located only on the trunk. If the sensory deficit extends from a limb into the trunk, then the trunk is not considered a limb.For example, a patient has decreased light touch in a band-like distribution around the entire abdomen, including both the right and left sides. There is no associated sensory deficit in the arms or legs. In this scenario, the patient is considered to have mildly decreased superficial sensation in two limbs.If a patient has decreased light touch in the right leg that extends into the lower right trunk, then this is considered as mildly decreased superficial sensation in one limb.


29.11.2007

When determining the score for vibration sense, which joint needs to be evaluated?


When evaluating vibration sense, the most distal joint of an extremity, i.e. the thumb or the big toe, is the joint of interest.


29.11.2007

If a patient has moderately decreased vibration sense in three or four limbs and no other findings in the Sensory FS, what is the Sensory FS score?


The Sensory FS score is 3. In the definitions for the Sensory FS scores, no score exists which corresponds to moderately decreased vibration sense in three or four limbs. However, the patient exceeds the requirements for a Sensory FS score of 2 and the most appropriate FS score is 3.


29.11.2007

In the sensory examination, the patient is found to have reduced temperature sensation, but the patient is not aware of the deficit. Therefore, the patient receives a score of 1 (signs only) for superficial sensation. There are no other findings in the Sensory FS. What is the Sensory FS score?


If the patient has reduced temperature sensation in one or two limbs, but was not aware of the deficit before formal testing, then the Sensory FS score is 1. If the patient has reduced temperature sensation in three or four limbs, or was aware of the deficit before formal testing, then the Sensory FS score is 2.