ArticleBMC musculoskeletal disorders2026
Factors associated with patient dissatisfaction after unicompartmental knee arthroplasty: a retrospective cohort analysis of 978 patients.
Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
backgroundMedial compartment knee osteoarthritis is common. Unicompartmental knee arthroplasty (UKA) offers a bone-preserving alternative to total knee replacement. Despite its advantages, patient dissatisfaction remains a concern. This study aimed to identify factors associated with dissatisfaction following UKA.
methodsMethods A retrospective analysis was conducted on 978 patients who underwent UKA between January 1, 2017 and December 31, 2023. Postoperative outcome data were collected via telephone and outpatient follow-up (mean follow up 49.6 months, range 20-102 months). Only unilateral UKA cases were included. Dissatisfaction was defined as a response of "neutral", "dissatisfied", or "very dissatisfied" on a 5 point Likert scale.
resultsAmong 978 patients, 811 (82.9%) were satisfied and 167 (17.1%) were dissatisfied. Multivariate logistic regression identified kneeling difficulty (OR=0.128, 95%CI: 0.079-0.206), stair-related pain (OR=8.783, 95%CI: 5.588-13.803), walking pain (OR=9.463, 95%CI: 5.591-16.014), and knee instability (OR=3.988, 95%CI: 2.179-7.298) as independent factors associated with dissatisfaction.
conclusionsPatient dissatisfaction after UKA is independently associated with walking pain, stair-related pain, knee instability, and inability to kneel fully. Surgeon experience, prosthesis type, and preoperative patellar morphology (Wiberg III) were associated with satisfaction in univariate analysis but were not identified as independent factors in multivariate regression.Preoperative counseling should address these modifiable factors.
trial registrationRetrospectively registered. No trial registration number is applicable.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.