Observational studyJournal of orthopaedic surgery and research2022
Knee-ankle joint line angle: a significant contributor to high-degree knee joint line obliquity in medial opening wedge high tibial osteotomy.
Observational study in Journal of orthopaedic surgery and research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Efficacy and safety of high tibial osteotomy combined with platelet-rich plasma for treating knee osteoarthritis: a systematic review and meta-analysis of the Chinese population.BMC musculoskeletal disorders · 2024Pooled it
- Prediction model for abnormal joint line obliquity after open wedge high tibial osteotomy using knee radiographic parameters.Knee surgery & related research · 2026Article
- Lower limb malalignment on whole-leg radiography predicts medial or lateral talar osteochondral lesion location: Implications for osteoarthritis assessment.Osteoarthritis and cartilage open · 2026Article
- CPAK phenotypes in medial open wedge high tibial osteotomy: undercorrection as the key factor influencing clinical outcomes and cartilage regeneration.Journal of orthopaedic surgery and research · 2026Article
- High Tibial Osteotomy Is Associated with Improvements in Both Knee and Ankle Alignment in Medial Compartment Osteoarthritis.Journal of clinical medicine · 2026Article
- Assessing joint line obliquity in valgus-producing high tibial osteotomy: A scoping review of the literature.Journal of orthopaedics · 2025Review
- Changes of Knee Phenotypes Following Osteotomy Around the Knee in Patients with Valgus or Varus Deformities-A Retrospective Cross-Sectional Study.Journal of clinical medicine · 2025Article
- Correction to at least neutral alignment during high tibial osteotomy is sufficient in reducing the knee adduction moment.Scientific reports · 2025Article
- Correlation of lower limb alignment with medial mensical extrusion in knee osteoarthritis.Archives of orthopaedic and trauma surgery · 2024Article
- Joint line and knee osteotomy.EFORT open reviews · 2024Review
- Torsional Deformity Significantly Impacts Lateral Ankle Radiographic Imaging Parameters.Cureus · 2024Article
- Enhanced deep learning model enables accurate alignment measurement across diverse institutional imaging protocols.Knee surgery & related research · 2024Article
- Changes in clinical outcomes and alignment of the ipsilateral knee and ankle after supramalleolar osteotomy in patients with varus osteoarthritis of the ankle: a short-term follow-up study.Archives of orthopaedic and trauma surgery · 2024Article
- Assessment of joint line obliquity and its related frontal deformity using long-standing radiographs.Journal of orthopaedics · 2023Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMedial opening wedge high tibial osteotomy (MOWHTO) changes the knee joint inclination in the coronal plane, which can be compensated by the ankle joint. Once there is a decompensated knee joint obliquity, it can induce excessive shear force on the articular cartilage. This study aimed to investigate the capacity of the compensation by analyzing the correlation of the knee-ankle joint line angle (KAJA) and the knee joint line obliquity (KJLO). PATIENTS AND
methodsNinety-six patients undergoing MOWHTO were included. We measured potential predictors including preoperative or postoperative body mass index (BMI), weight-bearing line (WBL) ratio/correction amount, knee-ankle joint line angle(KAJA), mechanical lateral distal femoral angle (mLDFA), medial proximal tibia angle (MPTA), ankle joint line obliquity (AJLO), mechanical hip-knee-ankle angle (mHKA) and joint line convergence angle (JLCA). The correlations of these predictors and postoperative KJLO were determined using Pearson correlation coefficient. The contribution of significant predictors was further analyzed using multiple linear regression. Finally, the cutoff value of the most contributing factor resulting in decompensated KJLO was derived with receiver operating characteristic (ROC) curve analysis.
resultsPreoperative AJLO, JLCA, MPTA, mHKA and KJLO and postoperative KAJA and MPTA correlated with postoperative KJLO. After multiple linear regression, only preoperative AJLO and JLCA and postoperative KAJA still showed significant contribution to postoperative KJLO. Postoperative KAJA made the greatest contribution. The cutoff value of postoperative KAJA was at 9.6° after ROC analysis. The incidence rate of high-grade KJLO was 69.6% when postoperative KAJA exceeded 9.6°.
conclusionsPostoperative KAJA is a significant contributor to high-grade KJLO after MOWHTO. The incidence was increased at angles greater than 9.6°. The results suggest that KAJA should be carefully assessed during preoperative planning or intraoperative evaluation. Postoperative KAJA < 9.6° can lower the rate of early high-degree KJLO.
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