Evidence map›Paper›PMID 41984250›Full record

ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2026

Clinical and radiographic outcomes of multiple cannulated cancellous screw fixation versus the femoral neck system for femoral neck fractures in the elderly: a multicenter retrospective comparative study.

Eiki Morisaki, Hiroaki Ido, Katsuhiro Tokutake, Hiroaki Nakashima, Kenichi Mishima, Shiro Imagama, Yasuhiko Takegami

Abstract readMulticenter StudyComparative Study
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In one paragraph

Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Eiki MorisakiNagoya University, Nagoya, Japan.
Hiroaki IdoNagoya University, Nagoya, Japan. ido.hiroaki.n8@f.mail.nagoya-u.ac.jp.
Katsuhiro TokutakeNagoya University, Nagoya, Japan.
Hiroaki NakashimaNagoya University, Nagoya, Japan.
Kenichi MishimaNagoya University, Nagoya, Japan.
Shiro ImagamaNagoya University, Nagoya, Japan.
Yasuhiko TakegamiNagoya University, Nagoya, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInternal fixation is performed in elderly femoral neck fracture (FN) patients. Historically, fixation using multiple cannulated cancellous screws (CCS) has yielded stable outcomes. A new instrument, the femoral neck system (FNS), which consists of a neck bolt, an anti-rotation screw, a plate, and a locking screw, has been introduced to stabilize the fracture site. This study aimed to compare the clinical and radiographic outcomes of internal fixation of FN with CCS or FNSs in a retrospective multicenter study. SUBJECT AND

methodsThis multicenter, retrospective study was conducted at 12 centers from 2016 to 2020. A total of 939 patients were treated by internal fixation for FN. A total of 523 patients remained after excluding cases with missing data, insufficient follow-up, or treatment using implants other than CCS or FNS. These subjects were divided into two groups: those treated with CCS (group C) or those treated with FNS (group F). We matched the patients by age, sex, and fracture type. The walking ability and numerical rating scale (NRS) scores of the two groups were compared as functional assessments. Complications included reoperation, osteonecrosis, pseudarthrosis, and cut-out. Operative time and blood loss were evaluated as operative details.

resultsAfter matching, 99 patients each from groups C and F were selected. All results are shown as group C versus group F. The operative time in group F was shorter than that in group C (44.33 min vs. 30.59 min, P < 0.001). There was no difference in blood loss (19.05 ml vs. 17.77 ml, P = 0.716). The numbers of patients with reoperation or complications did not differ to a statistically significant extent (n = 4 vs. n = 0, P = 0.121). There was no difference in walking ability at the last observation (P = 0.055). The femoral neck shortening in group F was larger than that in group C (5.60 mm vs. 7.08 mm, P = 0.03). The NRS at the last observation did not differ to a statistically significant extent (1.60 vs. 1.71, P = 0.644).

conclusionFNS is an effective treatment because it is technically easy to perform, the operative time is significantly shorter, and the results are comparable to those of conventional CCS.

Indexed as

Bone ScrewsFemoral Neck FracturesFracture Fixation, InternalAgedAged, 80 and overFemaleHumansMalePostoperative ComplicationsProximal Femoral FracturesRadiographyReoperationRetrospective StudiesTreatment OutcomeCannulated cancellous screws (CCS)Femoral neck fracture (FN)Femoral neck system (FNS)

Identifiers

PMID41984250

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.