Ilizarov External Fixation System hi ruh ruh (orthopedic surgery)-a hman thin external fixation system chi khat a ni a, ruh ruh tliak enkawlna atan te, ruh sei nan te, ruh piansual te siamthat nan te hman thin a ni. Kum 1950 chhoa Dr. Gavriil Ilizarov-a siam a ni a, chuta ṭang chuan enkawlna hmanraw hman lar leh tangkai tak a ni ta a ni.
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