We investigated the finger design and kinematics, mechanical joint coupling, and actuation methods of these commercial prosthetic hands. The empirical findings are supplemented with a compilation of published data on both commercial and prototype research prosthetic hands. We discuss numerous mechanical design parameters by referencing examples in the literature. Crucial design trade-offs are highlighted, including number of actuators and hand complexity, hand weight, and grasp force.
  The fibula is commonly known as the calf bone. It's the weight-bearing bone that extends to the ankle from the knee. It runs parallel to the tibia, which does is not w â¦ eight-bearing.he fibula is connected by a synovial joint to your other shin bone, the tibia. The â¦ fibula is what makes your outer ankle bone. And the tibia makes your inner 'ankle' bone. The main job of the tibia is to form a hinge joint with the femur, which allows you to walk, run, kick a ball, and generally have fun.
Fractures of the long bones of the lower leg are fairly common but fibula shaft fractures usually occur in combination with a tibial fracture or in isolation as the result of a direct blow or from twisting actions. The fibula is less commonly fractured as it is not the main weight bearing bone in the lower leg.his usually involves fracture of the medial malleolus, of the proximal fibula or fibular shaft and damage to the distal tibiofibular syndesmosis. Rickets is a disease of the growing long bones of the leg that affects children and adolescents. It is caused by the failure of osteoid to calcify in a growing person.