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Two types of cementless stems were used: a The CLS stem, which has a tapered wedge with a rough-blasted microporous surface and no porous coating, in 18 hips from 1995 to 1998. b the Intra -Medullary Cruciate (IMC) stem, which has a proximal porous coat and transverse locking pin in 19 hips after 1998
