Offset nail fixation for intertrochanteric fractures improves reduction and lag screw position

Takehiro Matsubara, Kazuhito Soma, Ikufumi Yamada, Hiroshi Fujita, Junya Yoshitani, Hiroyuki Oka, Hiroyuki Okada and Sakae Tanaka

PLOS ONE, 2022, vol. 17, issue 11, 1-11

Abstract: Background: Surgery for intertrochanteric fractures using intramedullary hip nails (IHNs) is among the most common surgical procedures in the orthopedic field. Although IHNs provide good overall outcomes, they sometimes cause complications, such as loss of reduction and cut-out. Here, we investigated the usefulness of IHNs with an anterior offset (Best Fit Nail® [BFN]) in maintaining fragment reduction and ensuring proper lag screw position compared with conventional non-offset nails (Proximal Femoral Nail Antirotation® [PFNA]), using postoperative computed tomography (CT). Methods: Fifty consecutive patients with intertrochanteric fractures who underwent surgery with BFNs (BFN group) and 50 patients who underwent surgery with PFNAs (PFNA group) were retrospectively analyzed. Indices evaluated by postoperative CT were displacement distance of proximal fragment relative to distal fragment, reduction status (intramedullary, anatomical, and extramedullary types), lag screw direction, and angle between lag screw and femoral neck axis (deviation angle). Results: Median [interquartile range] displacement distance was significantly smaller in the BFN group (0 [0, 0] mm) compared with the PFNA group (5.2 [3.6, 7.1] mm) (p

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0276903

DOI: 10.1371/journal.pone.0276903

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