Evidence map›Paper›PMID 40722420›Full record

ArticleBioengineering (Basel, Switzerland)2025

Coronal Alignment Does Not Adequately Predict Femoral Rotation Axes in Total Knee Arthroplasty: Application of a 3D Image-Based Robotic-Assisted Arthroplasty Platform.

Utkarsh Anil, Catherine Di Gangi, Lachlan Anderson, Charles C Lin, Matthew Hepinstall, Morteza Meftah, Armin Arshi

Abstract read
In one paragraph

Article in Bioengineering (Basel, Switzerland), 2025. 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

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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. The anterior compartment in modern knee arthroplasty.Bulletin of the Hospital for Joint Disease (2013) · 2026
    Review
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

7 authors.

Utkarsh AnilDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.ORCID 0000-0003-1807-1926
Catherine Di GangiDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.ORCID 0009-0003-6926-0150
Lachlan AndersonAnne Burnett Marion School of Medicine at TCU, Fort Worth, TX 76104, USA.ORCID 0009-0004-9864-0272
Charles C LinDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.
Matthew HepinstallDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.
Morteza MeftahDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.
Armin ArshiDepartment of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY 10010, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

(1) Introduction: Precise femoral component rotation is critical for achieving symmetric flexion-gap balance and physiologic patellofemoral tracking in mechanically aligned total knee arthroplasty (TKA). Surgeons often infer an appropriate rotational target from the patient's coronal limb alignment, yet the strength of this relationship remains uncertain. (2) Methods: We identified 695 consecutive patients undergoing primary TKA with a preoperative planning CT scan. The surgical transepicondylar axis (sTEA) and posterior condylar axis (PCAxis) were identified and the angle between them was measured. The angle between the mechanical axis of the femur and tibia was used to measure the coronal alignment of the limb. (3) Results: The mean sTEA was 3.0° externally rotated to the PCAxis (range 3.1° internal to 9.2° external). The mean coronal alignment was 4.3° varus (range -12.5° valgus to 24.5° varus). There were 465 patients with >2° varus and 101 patients with >2° valgus. The mean sTEA was 2.9 ± 1.9° externally rotated relative to the PCAxis in the valgus group and 2.8 ± 2.0° in the varus group, with no statistically significant difference (

Indexed as

gap balancingpatient-specific instrumentationposterior condylar anglerobotic CT planningthree-dimensional CT imagingtransepicondylar axis

Identifiers

PMID40722420
PMCPMC12292550

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.