ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2014
Predicting knee rotation by the projection overlap of the proximal fibula and tibia in long-leg radiographs.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Influence of axial limb rotation on radiographic lower limb alignment: a systematic review.Archives of orthopaedic and trauma surgery · 2022Pooled it
- Radiographic Projection Quality Score for the Knee (RPQS-Knee): Development and Reliability.Diagnostics (Basel, Switzerland) · 2026Article
- Retrograde intramedullary nailing of the femur: identifying the true anatomic axis for the ideal start point.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- The joint line convergence angle (JLCA) correlates with intra-articular arthritis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Linear correlation between patellar positioning and rotation of the lower limb in radiographic imaging: a 3D simulation study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Lateral tibial intercondylar eminence is a reliable reference for alignment correction in high tibial osteotomy.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Improving postoperative radiographs for the parameter measurement of hexapod external fixator using an additional foot ring.Journal of orthopaedic surgery and research · 2021Article
- Pros and cons of navigated versus conventional total knee arthroplasty-a retrospective analysis of over 2400 patients.Archives of orthopaedic and trauma surgery · 2021Article
- Coronal subluxation of the tibiofemoral joint before and after anterior cruciate ligament reconstruction.BMC musculoskeletal disorders · 2021Article
- Comparison of Postoperative Coronal Leg Alignment in Customized Individually Made and Conventional Total Knee Arthroplasty.Journal of personalized medicine · 2021Article
- Coronal and axial alignment relationship in Caucasian patients with osteoarthritis of the knee.Scientific reports · 2021Observational
- Long bone fracture reduction and deformity correction using the hexapod external fixator with a new method: a feasible study and preliminary results.BMC musculoskeletal disorders · 2021Article
- Improving the accuracy of patient positioning for long-leg radiographs using a Taylor Spatial Frame mounted rotation rod.Archives of orthopaedic and trauma surgery · 2021Article
- Analysis of the bony geometry of the acromio-clavicular joint.European journal of medical research · 2018Article
- 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
- The fibular head projection is of limited use as a radiographic landmark in preoperative planning of total knee arthroplasty.Skeletal radiology · 2017Article
- Presence of rotational errors in long leg radiographs after total knee arthroplasty and impact on measured lower limb and component alignment.International orthopaedics · 2017Article
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8 authors.
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Abstract
purposeRotation of the lower limbs in long-leg radiographs has a significant impact on imaging the mechanical femorotibial angle, the femoral anatomic mechanical angle, the mechanical lateral distal femoral angle (mLDFA) and the mechanical medial proximal tibial angle (mMPTA). In this study, we assessed the rotation of the lower limbs in conventional radiographs and hypothesized that the relative position of the proximal fibula to the proximal tibia on long-leg radiographs is related to the rotation of the knee joint.
methodsRadiological examinations in different rotational positions of the knee joint (incremental 40° internal to 40° external rotation) were imitated by 50 computed tomography scans (50 patients, 25 men and 25 women). The extent of the projection overlaps of the fibula, the fibular tip and the distance from the fibular tip to the lateral cortex were determined for every rotational position.
resultsMultiple regression analysis showed a very strong correlation between the measured fibular parameters and knee rotation between 20° of internal rotation and 40° of external rotation (R (2) ~ 0.94, p < 0.001). By means of these results, we created a formula for predicting knee rotation: [Formula: see text]This strong correlation could not be found between 20° and 40° of internal rotation. DISCUSSION: Because incorrect internal and external rotation negatively influence the correct measurement of angles (mechanical femorotibial angle, femoral anatomic mechanical angle, the mLDFA and the mMPTA), long-leg radiographs should be assessed for proper rotation angles before measurement. Using the provided formula rotation of the lower limb in weight-bearing, long-leg radiographs can be reliably predicted. LEVEL OF EVIDENCE: Diagnostic study, Level II.
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