ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2021
Dependence of knee range of motion on the alignment of femoral and tibial components after medial unicompartmental knee arthroplasty.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Impact of implant positions in total knee arthroplasty on the postoperative knee kinematics of tibial rotation.Journal of orthopaedics · 2024Article
- Impact of the sagittal spinopelvic and coronal lower extremity alignments on clinical outcomes after medial unicompartmental knee arthroplasty.Journal of orthopaedics · 2024Article
- What effect does preoperative flexion contracture have on the component angles in unicompartmental knee arthroplasty?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- Robotic arm-assisted unicondylar knee arthroplasty resulted in superior radiological accuracy: a propensity score-matched analysis.Arthroplasty (London, England) · 2023Article
- [Effect of posterior tibial slope on the short-term outcome in mobile-bearing unicompartmental knee arthroplasty].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2021Article
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Authors and funding
3 authors.
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Abstract
introductionThis study evaluated the relationship between postoperative knee flexion angles and the position of femoral and tibial components in unicompartmental knee arthroplasty (UKA). MATERIALS AND
methodsEighteen patients (a total of 22 knees: three men, four knees; 15 females, 18 knees) who underwent navigation-assisted UKA were included. Pre- and postoperative computed tomography images were applied on 3D software, which were matched and used to calculate the position of femoral and tibial components. Correspondingly, we investigated the relationship between the knee range of motion (ROM) at 1-year postoperative follow-up and the position of femoral and tibial components.
resultsAt 1-year post-UKA, the knee flexion angle was associated with the posterior flexion angle of tibial components. This particular angle was significantly greater in the group with equal or greater postoperative knee ROM compared to preoperative ROM (5.2 ± 2.1°) than in the group with less postoperative knee ROM compared to preoperative ROM (2.6 ± 1.6°, p < 0.01). There was no significant difference between both groups in the femoral component position, preoperative posterior slope of the medial tibial plateau, change in the pre- to postoperative posterior tibial slope, and postoperative knee society score.
conclusionThe posterior flexion angle of the tibial component affected the improvement/deterioration of the postsurgery knee flexion angle in navigation-assisted UKA. For improved outcomes after UKA using navigation systems, surgeons should aim to achieve a 5° to 8° posterior flexion angle of the tibial component.
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