ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2016
Appropriate sagittal femoral component alignment cannot be ensured by intramedullary alignment rods.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Current concepts of medial unicompartmental knee replacement: part 2-hot topics and further directions.Archives of orthopaedic and trauma surgery · 2026Review
- Accuracy and Early Outcomes of Patient-Specific TKA Using Inertial-Based Cutting Guides: A Pilot Study.Medicina (Kaunas, Lithuania) · 2025Article
- Three-Dimensional Bowing Measurement of Distal Femur at Actual Size and Clinical Implications of Total Knee Arthroplasty.Medicina (Kaunas, Lithuania) · 2024Article
- [Patellar tracking in knee arthroplasty].Orthopadie (Heidelberg, Germany) · 2024Review
- A Three-dimensional Comparison of Pre- and Post-component Position in a Series of Off-label Robotic-assisted Revision Total Knee Arthroplasties.Arthroplasty today · 2024Article
- Article
- Is the femoral intramedullary alignment already actual in total knee arthroplasty?Journal of experimental orthopaedics · 2023Review
- Preoperative Virtual Total Knee Arthroplasty Surgery Using a Computed Tomography-based 3-dimensional Model With Variation in Reference Points and Target Alignment to Predict Femoral Component Sizing.Arthroplasty today · 2022Article
- Influence of the femoral entry point for intramedullary alignment in total knee arthroplasty: A computer-aided design approach.Joint diseases and related surgery · 2022Article
- The accelerometer-based navigation system demonstrated superior radiological outcomes in restoring mechanical alignment and component sagittal positioning in total knee arthroplasty.BMC musculoskeletal disorders · 2021Article
- Clinical value of CT-based patient-specific 3D preoperative design combined with conventional instruments in primary total knee arthroplasty: a propensity score-matched analysis.Journal of orthopaedic surgery and research · 2020Article
- Femoral flexion position is a highly variable factor in total knee arthroplasty: an analysis of 593 conventionally aligned total knee replacements.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Rotation of intramedullary alignment rods affects distal femoral cutting plane in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018Article
- Article
- What is the optimal valgus pre-set for intramedullary femoral alignment rods in total knee arthroplasty?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Article
- Changes in the orientation of knee functional flexion axis during passive flexion and extension movements in navigated total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016Article
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8 authors.
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Abstract
purposeThe intraoperative sagittal cutting block alignment when intramedullary alignment rods are used was investigated. Its absolute orthogonal orientation in relation to the mechanical femoral axis should be analysed. It was hypothesized that (1) alignment rods do not ensure a desired deviation within a range between 0° and 3° flexion as it has been shown to be favourable for clinical and functional outcome. Further, the degree of flexion cannot be (2) foreseen by the surgeon or (3) estimated by clinical or radiological parameters.
methodsForty knees allocated to total knee arthroplasty were included. The distal femoral cutting block was aligned using an intramedullary rod. By means of a navigation device, the sagittal alignment of the cutting block in degrees of flexion was measured.
resultsThe mean measured flexion of the cutting block was 4.4° (3.6 SD). Twenty-five per cent (10/40) of the values were within a corridor between 0° and 3° of flexion. The mean difference between expected and measured flexion was -1.5° (-7.6 to 4.7 95 % limits of agreement). The dorsoventral diameter of the distal femur showed a significant influence on measured flexion (R (2) = 0.112, p = 0.035).
conclusionIntramedullary alignment rods used in the present study do not ensure a distal cutting block alignment between 0° and 3° of flexion in relation to the femoral mechanical axis. The extent of flexion could not be foreseen either by the surgeon. The dorsoventral diameter of the distal femur correlated with measured flexion. However, only limited data is available on influence of femoral component flexion on implant failure or clinical and functional outcome. LEVEL OF EVIDENCE: Diagnostic study, Level II.
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