ArticleJournal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology2021
Factors influencing knee valgus alignment in Crowe type IV hip dysplasia after total hip arthroplasty.
Article in Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Perioperative comparison between robotic-assisted and freehand total knee arthroplasty : A quasi-randomized controlled trial.Orthopadie (Heidelberg, Germany) · 2026Trial
- Crowe severity and femoral stem geometry are associated with lower-limb alignment after total hip arthroplasty for unilateral developmental dysplasia of the hip-related secondary osteoarthritis: valgus alignment trajectories.Archives of orthopaedic and trauma surgery · 2026Article
- Distribution and changes in lower limb alignment using the coronal plane alignment of the knee classification system before and after total hip arthroplasty.International orthopaedics · 2026Article
- Changes in Lower Limb Axial Alignment, Gait Biomechanics, and Plantar Force in Crowe Type IV Hip Dysplasia After Total Hip Arthroplasty: A Mean Ten-Year Follow-Up Retrospective Cohort Study.Orthopaedic surgery · 2026Article
- Correlation between preoperative nutritional status and postoperative clinical outcomes in patients undergoing artificial hip and knee replacement.American journal of translational research · 2026Article
- Predictors of mid-term outcomes in 334 developmental dysplasia hips treated with total hip arthroplasty.BMC musculoskeletal disorders · 2025Article
- Factors Associated With Complications in 176 Crowe IV Hips Treated With Total Hip Arthroplasty.Orthopaedic surgery · 2025Article
- Decrease in Global Offset Leads to Complaints of Worsening of Valgus Knee Deformity After Total Hip Arthroplasty in Patients With Crowe Type IV Developmental Dysplasia of the Hip.Orthopaedic surgery · 2025Article
- Long Term Changes of the Axis of the Lower Limb After Chiari Pelvic Osteotomy-A Retrospective Analysis of 111 Osteotomies After 34 Years.Journal of clinical medicine · 2025Article
- Stem Design in Total Hip Arthroplasty Influences Ipsilateral Knee Valgus: A Retrospective Comparative Analysis of 2953 Cases.Journal of clinical medicine · 2023Article
- Mid-term low back pain improvement after total hip arthroplasty in 306 patients with developmental dysplasia of the hip.Journal of orthopaedic surgery and research · 2023Article
- Mid-term outcomes after total hip arthroplasty in 106 Crowe II/III hips: different hip center positions.European journal of medical research · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundValgus deformity of the knee remains a complaint after total hip arthroplasty (THA) among some patients with Crowe type IV hip dysplasia. We aimed to identify the knee alignment in these patients before and after surgery, and to explore the factors contributing to postoperative knee valgus alignment. MATERIALS AND
methodsWe retrospectively reviewed a series of Crowe type IV patients who received THA between February 2010 and May 2019 in our hospital. The patients' medical data were collected from the hospital information system. On both preoperative and postoperative full limb length standing radiographs, the following parameters were measured: hip-knee-ankle angle (HKA), mechanical lateral distal femoral angle (mLDFA), medial proximal tibial angle, anatomical tibiofemoral angle, anatomical lateral distal femoral angle, femoral neck-shaft angle, pelvic obliquity, limb length, height and lateral distance of hip center, and femoral offset. Univariate and multivariate binary logistic regression were used to identify the factors influencing postoperative knee valgus alignment.
resultsA total of 64 Crowe type IV patients (87 hips) were included in the study. Overall, HKA improved from 176.54 ± 3.52° preoperatively to 179.45 ± 4.31° at the last follow-up. Those hips were subdivided into non-valgus group (≥ 177.0°, n = 65) and valgus group (< 177.0°, n = 22) according to postoperative HKA. Only postoperative mLDFA was a significant factor in the multivariate regression model.
conclusionsThe postoperative mLDFA is a major factor related to knee valgus alignment after THA, which combines the preoperative anatomy and surgical reconstruction. Other factors previously published were found to have no significance. LEVEL OF EVIDENCE: III.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.