ArticleJournal of orthopaedics2025
Influence of the functional status of the anterior cruciate ligament on the posterior medial femoral condyle among varus osteoarthritic knees.
Article in Journal of orthopaedics, 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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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.
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6 authors.
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Abstract
Background: Morphologic changes in the posterior medial femoral condyle (PMFC) among varus osteoarthritic knees have not been described in the past. The aims of this study were to compare anterior cruciate ligament (ACL) competent and deficient varus osteoarthritic knees during computer-navigation assisted (CAS) total knee arthroplasty (TKA) in terms of their pre-operative deformity, rotation of the posterior condylar axis (PCA) with respect to Whiteside's axis, and prevalence of PMFC hyperplasia or attrition. Methods: Data pertaining to pre-operative varus deformity, rotation of the PCA with respect to Whiteside's axis, and presence of PMFC hyperplasia or attrition were analyzed for 250 consecutive patients each, with ACL-competent and deficient knees, who underwent CAS TKA for varus osteoarthritis of the knee. Results: ACL-deficient knees, compared to ACL-competent knees, were associated with greater pre-operative stressed (9.94° ± 6.14° versus 7.29° ± 4.48°, Conclusion: Chronic ACL deficiency in varus osteoarthritic knees may result in progression of the coronal deformity, PMFC attrition, increased internal rotation of the PCA with respect to Whiteside's axis, and eventually PMFC hyperplasia. This needs to be borne in mind during TKA to prevent inadvertent placement of the femoral component in inappropriate rotation.
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