Optimal Bone Preparation for Triple-Tapered Stems: Does the Sagittal Taper Affect Optimal Femoral Sizing?

ABSTRACT:

Background

Conventional single-tapered, total hip arthroplasty stems achieve fixation namely through coronal, metaphyseal fit. Triple taper stems have a sagittal taper to optimize fixation in the antero-posterior (AP) plane as well; however, limited guidance exists on appropriate bone preparation. Often, similar preparation techniques are used despite geometric differences which may lead to underpreparation. We've defined a novel technique in which a small portion of posterior femoral neck and cancellous bone is removed to permit preparation collinear to the diaphyseal sagittal femoral axis. We hypothesize this will optimize stem fit and stability compared to conventional techniques.

Methods

This is a retrospective review of 38 cementless primary total hip arthroplasty cases

SUBMITTER: Shi J 

PROVIDER: S-EPMC11788765 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature