ArticleActa orthopaedica et traumatologica turcica2025
Effect of asymmetric anterior and posterior wedge openings on medial and lateral posterior tibial slope in medial open wedge high tibial osteotomy: An in vitro study on sheep tibias.
Article in Acta orthopaedica et traumatologica turcica, 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
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThis study aimed to evaluate the effects of different anterior and posterior wedge opening distances on medial and lateral pos terior tibial slope (PTS) angles during medial open wedge high tibial osteotomy (MOWHTO) using an in vitro sheep tibia model.
methodsThis in vitro study was conducted on 24 tibial bones from 2-year-old female domestic sheep. The samples were divided into 2 groups (n = 12 each) based on wedge configuration. Group 1 underwent osteotomy with a posterior opening of 6 mm and an anterior of 2 mm to reduce slope, while Group 2 received a 2 mm posterior and 6 mm anterior gap to increase slope. The medial and lateral PTS angles were measured separately using true lateral radiographs before and after osteotomy. Rotational changes were evaluated on computed tomography. Nine tibiae were excluded due to lateral hinge fractures; thus, the final analysis included 7 samples in Group 1 and 8 in Group 2.
resultsIn Group 1, the lateral PTS decreased significantly more than the medial PTS (6.28° ± 2.5 vs. 1.49° ± 1.9, P = .03). In Group 2, medial and lateral PTS changes were similar (5.28° ± 2.8 vs. 5.76° ± 2.9, P = .79). Computed tomography images revealed that the hinge was intact in the anterolateral cortex in Group 1 (Fig 5a) and in the lateral cortex in Group 2. Rotational assessment showed external rotation of the proximal fragment in Group 1 (2.05° ± 1.38) and internal rotation in Group 2 (Fig 5b) (2.88° ± 1.62), with no significant difference between groups (P = .33).
conclusionIn MOWHTO, applying a larger posterior opening than anterior results in greater lateral PTS reduction compared to the medial side, particularly when the hinge is located in the anterolateral cortex. These findings highlight the importance of wedge configura tion and hinge integrity in controlling sagittal plane alignment. Cite this article as: Yahyaoğlu A, Ergün S, Eceviz E. Effect of asymmetric anterior and posterior wedge openings on medial and lateral posterior tibial slope in medial open wedge high tibial osteotomy: An in vitro study on sheep tibias. Acta Orthop Traumatol Turc., 2025;59(6):421-427.
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.