ArticleInternational orthopaedics2024
Predicting postoperative coronal alignment after fixed-bearing unicompartmental knee arthroplasty using a new morphological assessment method: the arithmetic hip-knee-ankle angle.
Article in International orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Mechanical versus kinematic alignment for total knee arthroplasty: a meta-analysis.Archives of orthopaedic and trauma surgery · 2025Pooled it
- The coronal plane alignment of the knee classification cannot ignore the joint line convergence angle.BMC musculoskeletal disorders · 2026Article
- Beyond valgus stress radiography: arithmetic HKA angle (aHKA) as a superior predictor of limb alignment after UKA.Arthroplasty (London, England) · 2025Article
- Can preoperative lower limb alignment angles predict necessary soft tissue release during total knee arthroplasty for varus knees? A retrospective cohort study.International orthopaedics · 2025Article
- Predicting postoperative coronal alignment in medial unicompartmental knee arthroplasty using the arithmetic hip-knee-ankle angle.Arthroplasty (London, England) · 2025Article
- Amount of mechanical hip-knee-ankle (mHKA) angle correction by fixed-bearing medial UKA can be predicted using a new morphological assessment method: the arithmetic hip-knee-ankle (aHKA) angle.Archives of orthopaedic and trauma surgery · 2025Article
- Preoperative difference between 2D and 3D planning correlates with difference between planned and achieved surgical correction in patient-specific instrumented total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
- Long-term functional success and robust implant survival in lateral unicompartmental knee arthroplasty: A case series with a mean follow-up of twenty two and a half years.International orthopaedics · 2024Article
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Authors and funding
8 authors.
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Abstract
purposeOnly a few reports have been published so far on factors that predict postoperative coronal alignment after unicompartmental knee arthroplasty (UKA). The purpose of this study is to clarify the relationship between the arithmetic hip-knee-ankle angle (aHKA) and postoperative coronal alignment after medial fixed-bearing UKA.
methodsOne hundred and one consecutive patients (125 knees) who underwent medial fixed-bearing UKA were assessed. Pre- and postoperative coronal HKA angles, lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), and the thickness of the tibial and femoral bone cut were measured. aHKA was calculated as 180° - LDFA + MPTA. Correlations between postoperative HKA angle and aHKA, LDFA, and MPTA were investigated by single regression analysis. After the patients were divided into three groups according to the postoperative HKA angle, i.e., HKA angle > 180°, 175° < HKA angle ≤ 180°, and HKA angle ≤ 175°, aHKA, LDFA, MPTA, preoperative HKA angle, and the thickness of the distal femoral as well as tibial bone cut were compared among the three groups.
resultsaHKA and MPTA were positively correlated with postoperative HKA angle, while no correlation was found between postoperative HKA angle and LDFA. Among the three groups classified by postoperative HKA angle, significant differences were found in aHKA, MPTA, and preoperative HKA angle, while no significant difference was found in LDFA and the amount of distal femoral and tibial osteotomies.
conclusionsaHKA was correlated with postoperative HKA angle after medial fixed-bearing UKA, which was probably due to the influence of MPTA.
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