ArticleInternational orthopaedics2019
Patient satisfaction after total knee arthroplasty is better in patients with pre-operative complete joint space collapse.
Article in International orthopaedics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled 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.
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
17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.
- Mild radiographic osteoarthritis is associated with increased pain and dissatisfaction following total knee arthroplasty when compared with severe osteoarthritis: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- Causes of stiffness after total knee arthroplasty: a systematic review.International orthopaedics · 2021Pooled it
- Joint-specific measures improve risk adjustment in total knee arthroplasty: A machine learning approach.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Effect of preservation versus sacrifice of the posterior cruciate ligament on clinical outcomes after medial congruent total knee arthroplasty using mechanical alignment: A systematic review and meta-analysis.Journal of experimental orthopaedics · 2026Review
- The predictive effect of Kellgren-Lawrence grade and joint space height on pain and functional outcome.BMC musculoskeletal disorders · 2026Article
- Article
- Less improvement in knee function and higher rates of dissatisfaction in the short-term following total knee arthroplasty in people with mild radiographic arthritis.Archives of orthopaedic and trauma surgery · 2023Article
- Medial unicondylar knee arthroplasty should be reserved for patients with complete joint space collapse.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Low grade of radiographic osteoarthritis predicts unsatisfactory response of the contralateral knee replacement in two-stage bilateral total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Higher treatment effect after total knee arthroplasty is associated with higher patient satisfaction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis.Journal of orthopaedic surgery and research · 2021Article
- Patient Satisfaction Following Primary Total Knee Arthroplasty: Contributing Factors.The archives of bone and joint surgery · 2021Review
- Personality traits predict residual pain after total hip and knee arthroplasty.International orthopaedics · 2020Article
- Does the medial pivot knee improve the clinical and radiographic outcome of total knee arthroplasty? A single centre study on two hundred and ninety seven patients.International orthopaedics · 2020Article
- Comparative clinical and cost analysis between surgical and non-surgical intervention for knee osteoarthritis.International orthopaedics · 2020Article
- The patient results and satisfaction of knee arthroplasty in a validated grading system.International orthopaedics · 2019Article
- The forgotten joint score in total and unicompartmental knee arthroplasty: a prospective cohort study.International orthopaedics · 2019Article
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 at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aim of the studyTo determine if pre-operative radiologic minimal joint space width (mJSW) is related to the outcome of total knee arthroplasty (TKA) (primary hypothesis). Likewise, the aim was to test if pre-operative mJSW is related to prosthesis survival (secondary hypothesis).
methodsA retrospective comparative analysis was performed. Group 1 was comprised of patients with pre-operative mJSW 0-1 mm. Group 2 were patients with pre-operative mJSW ≥ 2 mm. The clinical outcome was determined with the Western Ontario and MacMaster Universities Osteoarthritis Index (WOMAC) score pre-operatively and one year after TKA. Only patients with pre-operative weight-bearing radiographs and complete WOMAC score data were accepted.
resultsAvailable for analysis were 377 patients, of whom 188 were allocated to Group 1 (118 female, 70 male, age 70 ± 11 years) and 189 to Group 2 (118 female, 71 male, age 70 ± 13 years). Pre-operative WOMAC total and WOMAC subscores showed no significant differences between groups. Post-operatively, the WOMAC total was significantly better in Group 1 than in Group 2, 10 ± 22 and 19 ± 31, respectively (p < 0.001, Power 97.5%). Similarly, the WOMAC subscores for pain, stiffness, and function were also significantly better in Group 1 than in Group 2. Five-year prosthesis survival was 94.2 and 91.6% in Groups 1 and 2, respectively (p = 0.07, Power 71%). DISCUSSION: Patients with pre-operative complete joint space collapse (0 to 1 mm mJSW) achieve a significantly better WOMAC result from TKA than do those with a mJSW equal to or greater than 2 mm. From our findings, it is recommended that "complete joint space collapse" especially be used as an indication for TKA surgery.
conclusionOur study was underpowered to sufficiently show an effect of pre-operative mJSW on prosthesis survival.
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.