Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2014
The radiological outcomes of patient-specific instrumentation versus conventional total knee arthroplasty.
Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 4 of them syntheses that pooled 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.
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
41 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- 3D-printing techniques in a medical setting: a systematic literature review.Biomedical engineering online · 2016Pooled it
- No difference in mechanical alignment and femoral component placement between patient-specific instrumentation and conventional instrumentation in TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Pooled it
- Evaluation of the accuracy of patient-specific cutting blocks for total knee arthroplasty: a meta-analysis.International orthopaedics · 2015Pooled it
- Systematic review of patient-specific instrumentation in total knee arthroplasty: new but not improved.Clinical orthopaedics and related research · 2015Pooled it
- No improvement in reducing outliers in coronal axis alignment with patient-specific instrumentation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018Trial
- No radiological and clinical advantages with patient-specific positioning guides in total knee replacement.Acta orthopaedica · 2018Trial
- Patient-specific instrumentation in total knee arthroplasty: simpler, faster and more accurate than standard instrumentation-a randomized controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Trial
- Comparison between patient-specific instruments and conventional instruments and computer navigation in total knee arthroplasty: a randomized controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Trial
- Radiological outcomes of pinless navigation in total knee arthroplasty: a randomized controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Trial
- Small improvements in mechanical axis alignment achieved with MRI versus CT-based patient-specific instruments in TKA: a randomized clinical trial.Clinical orthopaedics and related research · 2014Trial
- Local soft tissue thickness is a superior predictor of accuracy of implant alignment compared to body mass index in total knee arthroplasty.Arthroplasty (London, England) · 2025Article
- Femoral resection accuracy and precision in manual caliper-verified kinematic alignment total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
- Cost-effectiveness of patient specificWorld journal of orthopedics · 2023Article
- Accuracy of a Three-Dimensional (3D)-Printed Patient-Specific (PS) Femoral Osteotomy Guide: A Computed Tomography (CT) Study.Bioengineering (Basel, Switzerland) · 2022Article
- Evaluation of the accuracy of resected bone thickness based on patient-specific instrumentation during total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2021Article
- Mid-term functional outcomes of patient-specific versus conventional instrumentation total knee arthroplasty: a prospective study.Archives of orthopaedic and trauma surgery · 2021Article
- Advantages of patient-specific cutting guides with disposable instrumentation in total knee arthroplasty: a case control study.Journal of orthopaedic surgery and research · 2021Article
- Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation.The archives of bone and joint surgery · 2020Article
- Design improvement in patient-specific instrumentation for total knee arthroplasty improved the accuracy of the tibial prosthetic alignment in the coronal and axial planes.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Accuracy of tibial cuts with patient-specific instrumentation is not influenced by the surgeon's level of experience.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of this study was to investigate the post-operative radiological outcomes of patient-specific instrumentation (PSI) surgery versus conventional total knee arthroplasty (TKA).
methodsSixty patients scheduled for a primary TKA were prospectively divided into PSI or conventional technique. Coronal and sagittal radiographic long limb films were taken post-operatively. The accepted values for normal alignment were 180° ± 3° for hip-knee-ankle angle; 90° ± 3° for coronal femoral component angle or coronal tibia component angle; 0° to 3° flexion for sagittal femoral component angle and 0° to 7° posterior slope for sagittal tibia component angle.
resultsFor hip-knee-ankle angle, there were 21 % more outliers in the PSI group compared to the conventional group (p = 0.045). Most of these outliers had valgus deformity in the PSI group and varus deformity in the conventional group (p = 0.045). For implant placement, there was no difference in the proportion of outliers between the two groups. There was also no difference in the duration of surgery.
conclusionsThis study showed that PSI surgery is associated with a larger proportion of outliers for lower limb alignment. PSI surgery as an alternative to conventional TKA is not advisable. LEVEL OF EVIDENCE: II.
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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.