What does this research mean for the field?

Femoral stem design independently influences the risk of periprosthetic femoral fractures (PFF) after primary total hip arthroplasty (THA), with cementless anatomic stems increasing the risk and composite-beam cemented stems providing a protective effect. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to assess how different femoral stem designs impact the risk of periprosthetic femoral fractures after total hip arthroplasty.

February 21, 2026Journal of Bone and Joint SurgeryOpen Access

Impact of Stem Design on Periprosthetic Femoral Fracture Risk

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Authors

PBPA Bouche ALAnne Lubbeke CBChristian BrandUniversity of Bern

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Implication

This nationwide study finds that femoral stem design influences periprosthetic femoral fracture risk, indicating the need for tailored implant choices.

Key Points

The study aims to assess how different femoral stem designs impact the risk of periprosthetic femoral fractures after total hip arthroplasty.
Analyzed 182,118 primary total hip arthroplasties from the Swiss National Joint Registry
Categorized cementless and cemented stems based on specific classifications
Used a multivariable Cox regression model to evaluate risk factors and stem type associations
1,226 PFF cases (0.7%) were reported among the analyzed THAs
Cementless anatomic stems showed a higher risk of PFF (HR = 1.88) compared to type-3 stems
Composite-beam cemented stems were associated with a protective effect (HR = 0.45)

Cite This Study

Bouche et al. (2026) studied this question.

synapsesocial.com/papers/69994cc2873532290d02184a https://doi.org/10.2106/jbjs.25.01203

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Implication

This nationwide study finds that femoral stem design influences periprosthetic femoral fracture risk, indicating the need for tailored implant choices.

Impact of Stem Design on Periprosthetic Femoral Fracture Risk

Discussion

Member takes

Implication

Key Points

Cite This Study

Impact of Stem Design on Periprosthetic Femoral Fracture Risk

Discussion

Member takes

Implication

Key Points

Cite This Study

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