Evidence map›Paper›PMID 42412182›Full record

ArticleInternational orthopaedics2026

Femoral stem alignment and post-operative patient satisfaction: a retrospective analysis of total hip arthroplasty using computer-assisted equipment for placing cups.

Hiroki Kaneta, Takeshi Shoji, Shinichi Ueki, Hiroyuki Morita, Yosuke Kozuma, Naoto Nakayama, Shuhei Yamasaki, Nobuo Adachi

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Hiroki KanetaDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan. kyokui090014@gmail.com.
Takeshi ShojiDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan. readyma@hiroshima-u.ac.jp.
Shinichi UekiDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Hiroyuki MoritaDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Yosuke KozumaDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Naoto NakayamaDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Shuhei YamasakiDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Nobuo AdachiDepartment of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUsing computer-assisted equipment (CAE) in total hip arthroplasty (THA) has facilitated improved accuracy of acetabular cup placement, but the impact of aligning the femoral stem on post-operative patient satisfaction remains unclear. In this study, we evaluated the post-operative patient-reported outcome measures (PROMs) and identified factors related to femoral stem alignment associated with post-operative PROMs after THA.

methodsThis retrospective study included 200 patients (205 hips; mean age, 67.3 ± 9.8 years) undergoing THA using CAE for acetabular cup placement at our hospital. Alignment parameters of the femoral stem, including stem anteversion, change in stem anteversion, femoral offset, and coronal and sagittal stem angles, were evaluated using computed tomography scans and radiographs. Patients were categorised into the normal and Low&High alignment groups based on predefined, clinically acceptable ranges and deviation from native femoral anatomy. Patient satisfaction was assessed using a visual analogue scale and clinical outcomes were evaluated using the Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ) at one year post-operatively.

resultsPatients in the normal alignment group demonstrated significantly higher JHEQ total and movement scores than those in the Low&High group. Through multivariate logistic regression analysis, we identified change in stem anteversion as an independent factor associated with high post-operative patient satisfaction.

conclusionAccurate femoral stem alignment, particularly minimizing deviations in stem anteversion from the native femoral anteversion, was significantly associated with improved post-operative PROMs after computer-assisted THA. These results highlight the importance of achieving accurate femoral stem alignment, even when acetabular cup placement is optimised using CAE.

Indexed as

Arthroplasty, Replacement, HipFemurHip ProsthesisPatient SatisfactionSurgery, Computer-AssistedAcetabulumAgedFemaleHip JointHumansMaleMiddle AgedPatient Reported Outcome MeasuresRetrospective StudiesTomography, X-Ray ComputedTreatment OutcomeComputer-assisted surgeryFemoral anteversionFemoral stem alignmentPatient-reported outcome measuresPatient satisfactionTotal hip arthroplasty

Identifiers

PMID42412182
PMCPMC13619799

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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.