ArticleJournal of experimental orthopaedics2025
Kinematic alignment without femoral cartilage-wear compensation for apex-distal joint line obliquity: Effects on component alignment.
Article in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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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Who cites it
2 citing papers in PubMed.
- Patellar tracking and patellar tilt in kinematic versus mechanical knees.Journal of experimental orthopaedics · 2026Article
- Kinematic alignment without femoral cartilage-wear compensation for apex-distal joint line obliquity: Effects on component alignment.Journal of experimental orthopaedics · 2025Article
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Authors and funding
5 authors.
Funding
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Abstract
Purpose: Pronounced apex-distal joint line obliquity (JLO) complicates total knee arthroplasty (TKA) by challenging patellofemoral tracking and medial tibial bone support. Joint line obliquity-modified kinematic alignment (JLO-KA)-a selective modification of kinematic alignment (KA) that omits femoral cartilage-wear compensation and reallocates correction to the tibial side-was developed. This study quantified postoperative component and limb alignment with JLO-KA versus true KA. Methods: Retrospective comparison of 20 JLO-KA knees and 15 true-KA knees with preoperative apex-distal JLO (CPAK I-III). Pre-/postoperative computed tomography (CT) measured lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), femoral component rotation (FCR), arithmetic hip-knee-ankle angle (aHKA), and JLO; postoperative Coronal Plane Alignment of the Knee (CPAK) distribution was analysed ( Results: Groups were similar at baseline: preoperative LDFA 87.7° versus 87.6°, MPTA 83.5° versus 83.5°, aHKA -4.3° versus -4.1°, JLO 171.2° versus 171.2° (all Conclusion: Reallocating cartilage-wear compensation from the medial femur to the medial tibia within the same calliper-verified workflow reduced femoral valgus, limited tibial varus, and increased femoral external rotation by ≈3° while maintaining aHKA. Shifts were consistent with lateralizing the prosthetic trochlear groove and preserving medial tibial bone support, positioning JLO-KA as a targeted option for apex-distal knees (CPAK I-III). Level of Evidence: Level III, retrospective comparative study.
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