摘要
The purpose of the letter is to introduce a madreporic porous artificial hip prosthesis with bone-ingrowth self-locking fixation. Co—Cr—Mo alloy steel femoral head replacement was performed on 16 adult dogs divided into four groups (according to survey period of 5, 10, 15 and 20 weeks after operation), four in each group. After surgery, the function recovery of the operated limbs was recorded strictly. Roentgenograms of double hips were
