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3D-печать помогает быстро лечить серьезные травмы костей

Некоторые люди с самого детства знают, что такое перелом костей, и как долго проходит процесс их сращивания. К счастью, ученые со всего мира постоянно ищут способы ускорения лечения — в начале марта мы рассказывали как исследователи из Университета Карнеги-Меллона решили использовать для этого графен. В лечении переломов также весьма полезна технология 3D-печати — существуют материалы, которые помогают костным клеткам быстро и правильно размножаться. Недавно ученые из университетов Мэриленда и Техаса серьезно усовершенствовали эту технологию.

3D-печать помогает быстро лечить серьезные травмы костей

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По своей сути напечатанные на 3D-принтере материалы выполняют роль строительных лесов. Они имплантируются в место повреждения и помогают костным клеткам правильно и быстро размножаться и перемещаться от соседней кости к поврежденной. В конце концов, клетки полностью вытесняют постепенно растворяющийся материал, и кость становится здоровой и крепкой.

До сих пор эта технология не могла применяться при лечении остеохондральной ткани, которая присутствует в длинных костей рук и ног. Дело в том, что на каждом их конце есть слой гладкого сжимаемого хряща, который постепенно переходит в твердую кость. Таким образом технология, эффективная для сращивания однородных костей, не может быть применена для сращивания неоднородных.

3D-печать помогает быстро лечить серьезные травмы костей

Это было невозможно до тех пор, пока исследователи не создали материал со структурой, похожей на остеохондральную ткань. Он частично состоит из мягкого полимера с хрящевидной консистенцией, которая постепенно переходит в твердую керамику в виде кости. Содержащиеся в них поры позволяют хрящу и костным клеткам постепенно мигрировать в них, учитывая наличие кровеносных сосудов.

Следующий шаг для исследователей — создать материалы, которые предназначены специально для конкретных видов травм. Как правило, сложные травмы неоднородных костей возникают у спортсменов, но исследователи напоминают, что с ними могут столкнуться и обычные люди.

Если вы хотите всегда быть в курсе новостей науки и технологий, подпишитесь на наш канал на Яндекс.Дзен. Там вы найдете материалы, которых нет на сайте!

Источник: news-ria.ru

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