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March 21, 2026Journal of OrthopaedicsOpen Access

PFBN speeds union and weight-bearing vs PFNA and InterTan.

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Why the study?

Intertrochanteric fractures are frequently treated with intramedullary nails, but the comparative outcomes among different nail designs have not been thoroughly evaluated.

Does the Proximal Femoral Bionic Nail (PFBN) improve postoperative outcomes compared to PFNA and InterTan in elderly patients with intertrochanteric fractures?

Population

2,690 patients with intertrochanteric fractures across 26 studies

Comparison

PFBN vs PFNA vs InterTan

Design

Meta-analysis of comparative studies

Key result

The Proximal Femoral Bionic Nail (PFBN) demonstrated superior outcomes, including faster union (P≤0.01) and weight-bearing (P≤0.003), compared to PFNA and InterTan in 2,690 patients.

Authors

TCThomas ChoKDKriti DevganNJNipun U. Jayatissa

Discussion

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Member takes

Overview

May warrant PFBN preference in elderly intertrochanteric fractures; extends evidence for novel bionic nail designs.

Key Points

  • This meta-analysis compared outcomes of three IM nails (PFNA, InterTan, and PFBN) for elderly intertrochanteric fractures, using data from 26 studies (2,690 patients).
  • Conducted a meta-analysis of 26 studies.
  • Analyzed postoperative outcomes after treatment with PFNA, InterTan, and PFBN.
  • Searched PubMed, Embase, and Google Scholar until April 2025 for relevant studies.
  • Outcomes measured included union times, operative times, blood loss, and complications.
  • PFBN had faster union (P=0.01) and weight-bearing times (P=0.003) compared to PFNA.
  • PFBN outperformed InterTan in almost all metrics, including better functional scores (P=0.003 at 6 months).
  • InterTan showed quicker healing with fewer screw cutouts compared to PFNA (P<0.001); however, PFNA had shorter operative times (P=0.002).
  • PFBN demonstrated superior outcomes overall and was especially effective in unstable fractures.

Structured PICO

Does the Proximal Femoral Bionic Nail (PFBN) improve postoperative outcomes compared to PFNA and InterTan in elderly patients with intertrochanteric fractures?

P
Population
2,690 elderly patients with intertrochanteric fractures across 26 studies
I
Intervention
Proximal Femoral Bionic Nail (PFBN)
C
Comparator
Proximal Femoral Nail Antirotation (PFNA) and InterTan Nail
O
Outcome
Postoperative outcomes including union time, weight-bearing time, hospital stay, operative time, blood loss, complications, and Harris Hip Score (HHS) at 6 and 12 months

The newer Proximal Femoral Bionic Nail (PFBN) demonstrates superior postoperative recovery and functional outcomes compared to PFNA and InterTan for intertrochanteric fractures.

Cite This Study

Cho et al. (2026) studied this question. The Proximal Femoral Bionic Nail (PFBN) demonstrated superior outcomes, including faster union (P≤0.01) and weight-bearing (P≤0.003), compared to PFNA and InterTan in 2,690 patients.

synapsesocial.com/papers/69be368a6e48c4981c6758e2https://doi.org/10.1016/j.jor.2026.03.020
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