Joint loading, elbow

Joyce, G.C. Rack, P.M. The Effects of Load and Force on Tremor at the Normal Human Elbow Joint, J. Physiol. 

FIGURE 49.24 Contact of the ulnohumeral joint with varus and valgus loads and the elbow at 90°. Notice only minimal radiohumeral contact in this loading condition. (From Stormont T.J., An K.N., Morrey B.F., and Chae E.Y. 1985. /. Biomech. 18 329. Reprinted with permission of Elsevier Science Inc.)... 

In this activity, the recommended load limit was not exceeded for the elbows, shoulder, knees and ankle joints, however 2.0% of workers present risk of injury to the joint of the L5-S1 vertebral disc and 4.0%) were not able to perform this function without risk of injury to the coxofemoral joints. 

In semi-mechanized holes digging operation, when the operator moved between holes, 99% of the workers presented risk of injury to the elbow joint and to the Lj-S, spind disc and 89% of workers presented a risk of injury to the knees. In all the evaluated body joints, the recommended load hmit was exceeded. These... 

Replacement of other joints uses many of the same materials as have been found useful in hips. However, the knee joint has the complication of a more complicated geometry and smaller load-bearing surfaces. Shoulder, elbow, and finger joints have also been replaced. 

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