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John Gilbert
Baltimore inventor gave hope to those with hip problems

While the name John Gilbert Collison Sr. has been largely forgotten today, his invention of the artificial steel hip ball more than 60 years ago has given him orthopedic immortality. His invention, manufactured in Baltimore in his Falls Road facility, has saved lives and given relief and hope to patients worldwide who suffered from fractured hips or severe arthritis. At a time when a fractured hip was almost a certain death sentence, his revolutionary invention gave people hope and the ability that they would regain and live normal, pain-free lives. Collison, who had rather humble beginnings, was born in 1892 in Erin, Tenn., the son of Edward Elliott Collison Jr., the inventor of the...