ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020
Medial unicompartmental knee arthroplasty in ACL-deficient knees is a viable treatment option: in vivo kinematic evaluation using a moving fluoroscope.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. 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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14 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.
- Anterior cruciate ligament deficiency versus intactness for outcomes in patients after unicompartmental knee arthroplasty: a systematic review and meta-analysis.Frontiers in bioengineering and biotechnology · 2022Pooled it
- [Isokinetic analysis of muscle strength recovery after fixed-bearing unicompartmental knee arthroplasty in patients with anterior cruciate ligament deficiency].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Article
- Fixed-bearing unicompartmental vs. total knee arthroplasty in elderly patients with medial osteoarthritis and anterior cruciate ligament deficiency: a retrospective comparative study.Frontiers in surgery · 2026Article
- High posterior tibial slope increases anterior cruciate ligament elongation in unicompartmental knee arthroplasty during early-flexion of lunge.BMC musculoskeletal disorders · 2025Article
- The impact of anterior cruciate ligament deficiency severity on the outcomes of fixed-bearing unicompartmental knee arthroplasty: a retrospective study.Journal of orthopaedic surgery and research · 2025Review
- Article
- The efficacy of unicondylar knee arthroplasty for medial compartment arthritis of the knee combined with anterior cruciate ligament dysfunction.BMC surgery · 2024Article
- Unicompartmental knee replacement: controversies and technical considerations.Arthroplasty (London, England) · 2024Review
- Article
- Article
- Computational analysis of tibial slope adjustment with fixed-bearing medial unicompartmental knee arthroplasty in ACL- and PCL-deficient models.Bone & joint research · 2022Article
- More AnteriorFrontiers in bioengineering and biotechnology · 2021Article
- Clinical validation and accuracy testing of a radiographic decision aid for unicondylar knee arthroplasty patient selection in midterm follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Review
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeUnicompartmental knee arthroplasty (UKA), resulting in similar kinematics to native knees, is functionally superior to total knee arthroplasty (TKA). However, ACL deficiency is generally considered to be a contraindication. The main purpose of this study was to investigate if UKA in ACL-deficient knees would result in similar kinematics to conventional UKA with an intact ACL.
methodsTen conventional UKA patients were compared to eight ACL-deficient patients with a reduced tibial slope to compensate for instability, resulting from the deficient ACL. Knee kinematics was evaluated with a moving fluoroscope, tracking the knee joint during daily activities. In a standing position (baseline), posterior shift of the femur was observed for ACL-deficient UKA patients, compared to conventional UKA patients.
resultsA significant posterior femoral shift in the ACL-deficient group was observed during the first 25% (near extension) of deep knee bend, while there was no difference in kinematic waveforms for all other activities. No significant range of motion differences across different activities between the two UKA groups were detected, except for an increase of medial AP translation in the ACL-deficient group, during deep knee bend and stair descent.
conclusionDespite the posterior femoral shift due to ACL deficiency, both UKA groups showed similar kinematic waveforms, indicating that posterior tibial slope reduction can partially compensate for ACL function. This supported our hypothesis that fixed bearing UKA can be a viable treatment option for selected ACL-deficient patients, allowing patient-specific kinematics. While anteroposterior laxity can be compensated, rotational stability was a prerequisite for this approach. LEVEL OF EVIDENCE: III.
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