ArticleJournal of orthopaedic surgery and research2025
Intra-osseous and coverage fixation for inferior pole fracture of the patella: a comparative finite element analysis and retrospective cohort study.
Article in Journal of orthopaedic surgery and research, 2025. 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
5 authors.
Funding
Abstract
objectiveInferior pole fracture of the patella (IPFP) is notoriously difficult to manage. Although multiple surgical options are available, the percutaneous cannulated-screw tension-band (PCST) technique remains the conventional choice, despite its high complication rate. The recently introduced technique of tension-band wiring through a cannulated screw with suture anchors (TACS-SA) offers a promising alternative, though its efficacy requires further validation. This study was conceived to compare the biomechanical behaviour and early clinical results of the TACS-SA construct with PCST fixation.
methodsThis study comprises a finite-element analysis (FEA) and clinical investigation. In the FEA, a knee flexion of 45° under 200 N contact stress was simulated. Three fracture models were constructed for the TACS-SA, PCST with a figure-of-eight tension band (EPCST), and PCST with a figure-of-zero tension band (ZPCST). Fracture fragment stability was assessed by measuring mean displacement (MD-FF) and mean stress (MS-FF). The biomechanical strength of the fixation device was evaluated via its mean displacement (MD-IF) and mean stress (MS-IF). The clinical cohort included 43 patients, with 25 undergoing TACS-SA and 18 undergoing EPCST. Recorded parameters included bone union time, radiographic union time, range of motion (ROM), and follow-up duration. At the final follow-up, functional outcomes were evaluated with the Böstman score, KOOS score, and extension lag.
resultsIn the FEA, the TACS-SA models consistently showed lower MD-FF, MS-FF, and MD-IF across all three fragment conditions (p < 0.05), with the MS-IF of TACS-SA being moderate but not significant in the one-fragment condition (p > 0.05). In the retrospective cohort, the TACS-SA group achieved radiographic union earlier than the EPCST group (P < 0.05). Similar results were observed in the KOOS score, bone union period, ROM, Böstman score, and extension lag between the groups (P > 0.05).
conclusionThe TACS-SA technique exhibits superior biomechanical properties and clinical outcomes to the conventional PCST technique when treating IPFP.
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.