ArticleBMC musculoskeletal disorders2025
Changes in the rotational alignment of the tibial component in total knee arthroplasty for varus osteoarthritis.
Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposesCurrently, there is no gold standard for determining the rotational alignment of the tibial component in varus knee deformities. This study aims to identify an appropriate method for determining the rotational alignment of the tibial component in total knee arthroplasty (TKA) for varus osteoarthritis.
methodsThis study explores the relationship between varus angles and various anatomical landmarks to identify the optimal landmark. A total of 174 patients with varus knee osteoarthritis (OA) were recruited between June 2019 and June 2022.
resultsStatistical analysis and scatter plots revealed a significant negative correlation between the varus angle and the ATCC in all patients with knee OA. A significant positive correlation was observed between the varus angle and the patellar tendon (including PCL-PT and PCL-MSL) when the varus angle was ≤ 10°. However, the correlation between these parameters changed when the varus angle exceeded 10°.
conclusionsThe study provides new insights into the rotational alignment of the tibial component in TKA for varus osteoarthritis, emphasizing the need for individualized alignment strategies based on anatomical landmarks and varus angle severity. LEVEL OF EVIDENCE: Level III, correlation study.
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