Evaluation of grip loss.

Loss of grasping power is a ratable factor of permanent partial disability by the Industrial Accident Commission of the State of California. The ratings that issue therefrom are based upon the proportion of grasping power actually lost as a result of the injury sustained. The conditions which most frequently impair grasping power are, (1) amputation; (2) limited motion of digits, wrists, forearm, elbow or shoulder; (3) pain; (4) muscular weakness. The examining physician can greatly facilitate proper rating if he carefully and fully reports data needed by the I.A.C. Grip readings should be measured by the most precise instrument which can be obtained. Makeshift devices such as using a blood pressure cuff are not acceptable. A committee of the California Medical Association appointed to study the subject of loss of grip for purposes of establishing compensation rating, concluded that a dynamometer that registers pounds force is preferable to one registering pressure.