Unexpected early loosening of rectangular straight femoral Zweym üller stems with an alumina-reduced surface after total hip arthroplasty—a prospective, double-blind, randomized controlled trial

ConclusionIn the NT group, unexpected catastrophic failure rates of 41% caused by early aseptic loosening were noted within 50  months. Compared with the STD stems, NT stems lead to poor clinical and radiographic results.Level of evidence: II.Trial Registration: NCT05053048.
Source: Journal of Orthopaedics and Traumatology - Category: Orthopaedics Source Type: research