Conclusions
fractures, THA
The TNS stem reduced SS at 1 and 3 years after THA compared to the proximal-engaging cementless stem, although the shape of the TNS stem was matched. The TNS stem could reduce SS, stem loosening, and periprosthetic fractures. Further studies are needed to determine whether a low Young’s modulus TNS stem can reduce stress shielding and improve long-term outcomes of THA.