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Hirayama disease, also known as monomelic amyotrophy (MMA), [1] [2] is a rare motor neuron disease first described in 1959 in Japan. Its symptoms usually appear about two years after adolescent growth spurt and is significantly more common in males, with an average age of onset between 15 and 25 years.
However, a more likely scenario may be that the specialized precision gripping hand (equipped with opposable thumb) of Homo habilis preceded walking, with the specialized adaptation of the spine, pelvis, and lower extremities preceding a more advanced hand. And, it is logical that a conservative, highly functional adaptation be followed by a ...
Girls are more advanced in balance and motor dexterity. [citation needed] Children should be able to make precise cuts with scissors, for example, cutting out squares and holding them in a more common and mature manner. The child's movements should become fluid as the arms and hands become more in sync with each other.
Additionally, if your cold hands are accompanied by any symptoms of pain or ulceration of the fingertips, you must consult a physician, says Dr. Hisham Awan, an orthopedic surgeon and director of ...
Upper-extremity prostheses are used at varying levels of amputation: forequarter, shoulder disarticulation, transhumeral prosthesis, elbow disarticulation, transradial prosthesis, wrist disarticulation, full hand, partial hand, finger, partial finger. A transradial prosthesis is an artificial limb that replaces an arm missing below the elbow.
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).
The muscles of the hand are the skeletal muscles responsible for the movement of the hand and fingers. The muscles of the hand can be subdivided into two groups: the extrinsic and intrinsic muscle groups. The extrinsic muscle groups are the long flexors and extensors. They are called extrinsic because the muscle belly is located on the forearm ...
Upper Extremity Transplantation Using a Cell-Based Protocol to Minimize Immunosuppression. Ann Surg, 257:345-351, 2013. Shores JT, Brandacher G, Lee WPA. Hand and Upper Extremity Transplantation: An Update of Outcomes in the Worldwide Experience. Plast Reconstr Surg, 135(2):351e-360e, 2015; Lee WPA. Hand Transplantation: Evolution of a Personal ...