i am having decreased strength in my left forefinger when hand is horizontal and pushing down with forefinger. when all fingers are pointing out i cannot lock the knuckle of left forefinger. if i point three fingers down i can lock knuckle. also having difficulty in using fork in left hand while cutting with knife in right. the muscle (web) between my thumb and forefinger appear sunken and knuckle appears 1 1/2 times normal size.
Hi, There seems to be wasting of their muscles (muscles responsible for thumb movements). There seems to be median nerve involvement at or around the wrist. Hope I have answered your question. Let me know if I can assist you further.