The longevity of the ink depends on the pen, but most are about 6â8 months. If the pen dries up, you can try heating up the ballpoint part with hot water in case the rollerball is stuck. Another option is to keep the casing and purchase a refill f...
Common Causes of Foot drop. 1  Muscle disease. 2  Peroneal nerve. 3  Sciatic nerve. 4  Lumbosacral plexus. 5  L5 nerve root. 6  more common causes...Â».
A drop attack is a sudden fall, with or without unconsciousness, due either to collapse of muscle tone or abnormal muscle contraction in the legs. Many neurological diseases, cardiac diseases, ear diseases, muscle dysfunction conditions like myoclonic syndromes and startle responses can cause drop attacks.n about 30% of drop attacks the cause is unknown. Weakness of muscles of the legs. Weakness of the hip and knee extensor muscles (important for maintaining an erect posture). Some causes include muscular dystrophy, neurogenic atrophy, polymyositis, myasthenia gravis and spinal cord ischemic attacks.