ArticleJournal of orthopaedics
Morphological changes affecting ipsilateral and contralateral leg alignment after total hip arthroplasty.
Article in Journal of orthopaedics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Article
- Determining the effect of femoral anteversion and hip alignment parameters on lower limb and knee alignment post-total hip arthroplasty.Scientific reports · 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
- Does the Implantation of a Short-Stem Hip Prosthesis Change the Lower Limb Alignment?-Comparison of Two Modern Short-Stem Designs.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
- "Grand-piano sign" as a femoral rotational indicator in both varus and valgus knees: a simulation study of anterior resection surface in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Effect of Total Hip Arthroplasty on Ipsilateral Lower Limb Alignment and Knee Joint Space Width: Minimum 5-Year Follow-up.Journal of Korean medical science · 2023Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt is still unclear whether morphological changes in hip disorders is a pathogenic or independent factor for the variations in leg alignment. The purpose of this study was to elucidate the characteristics of the change in leg alignment after total hip arthroplasty (THA) and the morphological factors affecting the ipsilateral and contralateral leg alignment.
methodsBoth pre-operative and post-operative bilateral whole-leg radiographs in the standing position were taken in 100 patients who underwent THA. Hip-knee-ankle angle (HKAA), joint line convergence angle (JLCA), height of the hip center, lateral width to the hip center, femoral offset, and leg length discrepancy were measured. After the pre-operative legs were divided into the varus, neutral, or valgus groups, correlations between the change in HKAA and each hip morphological parameter were assessed.
resultsThe mean change in HKAA on the THA side was 0.8° in the varus direction, which was significantly correlated with JLCA change. On the leg ipsilateral to THA, if the pre-operative alignment was valgus, the medial shift of the hip center was significantly correlated with the varus change in HKAA. On the side contralateral to THA, the change in leg length discrepancy was a significant correlative factor to the varus change in HKAA, if the pre-operative alignment was valgus or neutral.
conclusionThe significant morphological parameters affecting the ipsilateral and contralateral leg alignment after THA were medial shifting of the hip center and the change in leg length discrepancy, respectively. LEVEL OF EVIDENCE: Level Ⅳ, Retrospective cohort study.
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