Antonius Mathijsen (November 4, 1805–June 15, 1878) was a Dutch army surgeon who first used "plaster of paris to fixate broken bones in a plaster cast.
Antonius Mathijsen was born November 4, 1805 to a village physician in "Budel, a Dutch town on the Belgian border. He was educated at hospitals in "Maastricht, "Brussels and the army medical school in "Utrecht.
While working in Haarlem at the military hospital in 1851, Mathijsen first used plaster of paris as a bandage. Until then a Belgian method was used with starch that took up to a day to dry and harden. Across the street he watched workers repairing cracks in the church with strips of "jute dunked in plaster of paris. He reasoned that a jute bandage soaked in water and plaster of paris applied in the same way as the Belgian method would harden within a few minutes and thus made a better fixation for broken bones. After testing his idea on chickens he published his findings in a Dutch medical magazine Repertorium in February 1852. In 1853 his idea was praised by a research panel for its value to the military, "especially on the battlefield". Haarlemmers remembered him as "Uncle Plaster" or "Oom Gips".
The military hospital was located in "Hoofdwacht, Haarlem across from the church
He retired from the army in 1868 as first medical officer first class (Lieutenant Colonel).
Mathijsen died June 15, 1878, aged 72, in "Hamont.
Memorial monuments are located in both Budel and Hamont. The last Dutch army hospital in Utrecht was named after Dr Mathijsen until the army hospital merged with the navy hospital in the early 1990s.