Evidence map›Paper›PMID 40641664›Full record

ArticleJournal of orthopaedics2025

The association between restoration of tibial slope and total knee arthroplasty outcomes.

Asher Selznick, Hassaan Abdel Khalik, Prushoth Vivekanantha, Bryan Sun, Hamilton Arthroplasty Group, Kamal Bali

Abstract read
In one paragraph

Article in Journal of orthopaedics, 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. Visual inspection provides precise intraoperative evaluation of tibial slope during unicompartmental knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    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

6 authors.

Asher SelznickDivision of Orthopaedic Surgery, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.
Hassaan Abdel KhalikDivision of Orthopaedic Surgery, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.
Prushoth VivekananthaDivision of Orthopaedic Surgery, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.
Bryan SunDivision of Orthopaedic Surgery, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.
Hamilton Arthroplasty Group
Kamal BaliDivision of Orthopaedic Surgery, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The proximal tibia has a characteristic posterior slope, varying between individuals and implicated in biomechanical function. This study evaluated whether restoring the native posterior tibial slope during primary total knee arthroplasty (TKA) improves postoperative functional outcomes. Methods: A retrospective review of 9569 TKA patients from 1998 to 2022 was conducted using a single-centre arthroplasty database. Patients were categorized based on changes in tibial slope: decreased (Group 1, Δ slope <3°), re-created (Group 2, Δ slope -3 to +3°), or increased (Group 3, Δ slope >3°). Preoperative and postoperative anterior and posterior femoral offset ratios were also calculated and analyzed as covariates. Postoperative functional outcomes and range of motion (ROM) were assessed using analyses of covariance (ANCOVAS) and post-hoc pairwise comparisons. Results: Among 609 included patients, tibial slope was decreased in 278 patients (46%, Group 1), re-created in 253 (42%, Group 2), and increased in 78 (13%, Group 3). Group 2 exhibited a 4.8-point higher Knee Society Score at six weeks postoperatively compared to Group 1 (p = 0.004), though scores at other time points and Oxford Knee Scores across all time points showed no significant differences between groups (p > 0.05). Maximal flexion did not differ significantly across groups. These findings were consistent after adjusting for femoral offset ratio changes. Conclusion: Recreation of native tibial slope was associated with a statistically significant but clinically minor improvement in postoperative functional outcome scores. Increasing tibial slope was not associated with improvements in maximal flexion, although this may be confounded by variations in implants utilized. Loe: III (Retrospective cohort study).

Indexed as

SagittalTibial slopeTotal knee arthroplasty

Identifiers

PMID40641664
PMCPMC12240083

What OpenQuestion holds

Textmetadata
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.