DISORDERS OF THE UPPER EXTREMITY Derangements not previously described can contribute to impairments of thehand and upper extremity and should be considered in the final impairment determination. These include bone and joint disorders, presence of resection or implant arthroplasty, musculotendinous disorders, and loss of strength.
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NOTE:
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It must be stressed that impairments secondary to these disorders are usually rated by other parameters.
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The following disorders are to be rated only when other factors have not adequately rated the extent of impairment. Whether to consider these disorders separately is left to the discretion of the examiner.Table 18 shows relative impairment values for loss of function of the digits, hand, wrist, elbow, and shoulder due to the conditions described below and impairment values for the larger units. This table differs from figures 2 and 3 (p. 56), which show values for amputation at these levels.
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Table 18
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RELATIVE IMPAIRMENT VALUES
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% Impairment of
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Units and Joints
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Unit
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Hand
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Upper Extremity
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Whole Person
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SHOULDER
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Acromoclavicular
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—
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—
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30
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18
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ELBOW
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Proximal
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WRIST
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Distal
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THUMB
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INDEX OR MIDDLE
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Entire finger
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100
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20
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18
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11
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MP
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100
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20
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18
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11
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RING OR LITTLE
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Entire finger
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100
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10
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9
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5
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MP
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100
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10
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9
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5
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