Fig. 2From: Higher incidence of aseptic loosening caused by a lower canal filling ratio with a modified modular stem in total hip arthroplastyStem with stable fixation and unstable fixation 1 week (a, c) and 5 years (b, d) after surgery. Spot welds around the distal sleeve were confirmed in the stable fixation (b). Extensive radiolucent line around the sleeve was confirmed with progressive subsidence and varus stem alignment change in the unstable fixation (d)Back to article page