ArticleJournal of orthopaedic surgery and research2021
The morphology of the proximal femur in cementless short-stem total hip arthroplasty: No negative effect on offset reconstruction, leg length difference and implant positioning.
Article in Journal of orthopaedic surgery and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Imageless navigation for primary total hip arthroplasty: a meta-analysis study.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2022Pooled it
- Yolov7 neural network for pelvic X-rays after total hip arthroplasty: automatically measuring component position parameters- a retrospective feasibility study.BMC medical imaging · 2026Article
- Radius of proximal femur curvature as a significant predictor for long stem-canal match in total hip arthroplasty: a retrospective cohort study.BMC musculoskeletal disorders · 2026Article
- Mid-Term to Long-Term Outcomes of Total Hip Arthroplasty Using a Cementless Trochanteric Sparing Short Stem Through Direct Anterior Approach: A Single-Center Study.Arthroplasty today · 2025Article
- Optimal Bone Preparation for Triple-Tapered Stems: Does the Sagittal Taper Affect Optimal Femoral Sizing?Arthroplasty today · 2025Article
- Relating total hip replacement and acetabular cup positioning with outcome: A systematic review.Bioinformation · 2025Article
- Leg length discrepancy risk differs between fit-and-fill and taper wedge stems across Dorr types.Archives of orthopaedic and trauma surgery · 2024Article
- The influence of prosthetic positioning and proximal femoral morphology on leg length discrepancy and early clinical outcomes of cementless total hip arthroplasty.Journal of orthopaedic surgery and research · 2023Article
- Implant positioning in total hip arthroplasty: influence of horizontal and vertical offset on functionality of prosthetic hip joint.International orthopaedics · 2022Article
- Minimally invasive anterolateral approach versus direct anterior approach total hip arthroplasty in the supine position: a prospective study based on early postoperative outcomes.Journal of orthopaedic surgery and research · 2022Article
- Letter to editor regarding "The morphology of the proximal femur in cementless short-stem total hip arthroplasty: no negative effect on offset reconstruction, leg length difference and implant positioning".Journal of orthopaedic surgery and research · 2022Article
- Heterotopic Ossification in Cementless Trochanteric Sparing Short Stem Total Hip Arthroplasty: Clinical Impact and Implant-Level Risk Assessment.JB & JS open accessArticle
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5 authors.
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Abstract
backgroundCorrect reconstruction of hip offset (HO) and leg length are important for clinical-functional outcome and patient satisfaction in total hip arthroplasty (THA). The morphology of the proximal femur can pose a risk for increased leg length difference (LLD) in cementless straight-stem THA. We therefore wanted to evaluate, if this is also applicable in THA with a cementless meta-diaphyseal short stem.
methodsIn a retrospective study, 106 patients (index surgery 2014-2019) with unilateral THA and a morphologically healthy hip as a reference (Kellgren-Lawrence ≤ 1) were included. The same cementless short stem with meta-diaphyseal fixation and cementless press-fit cup was implanted. The proximal femur was rated by Dorr's classification, and subgroups were formed afterward. Measurements were carried out on preoperative and 3 months postoperative anterior-posterior radiographs of the pelvis. Kruskal-Wallis test, Fisher's exact test and binary logistic regression were performed to evaluate the influence of the anatomical shape on postoperative leg length difference and offset reconstruction.
resultsThe Dorr type did not show any significance influence on LLD (p = 0.532), or postoperative difference in femoral offset (p = 0.243), acetabular offset (p = 0.106) and hip offset (p = 0.698). Stem alignment (p = 0.705) and canal fill indices (CFI I: p = 0.321; CFI II: p = 0.411; CFI III: p = 0.478) were also without significant differences. Logistic regression did not show any significant increased risk for a LLD ≥ 5 mm or ≥ 10 mm as well as HO ≥ 5 mm or ≥ 10 mm.
conclusionReconstruction of hip offset and postoperative leg length difference is not negatively influenced by Dorr type, canal flare index, cortical index and canal-to-calcar ratio in cementless short-stem THA. Implant positioning and canal fill are also not negatively affected by the anatomical shape of the proximal femur. LEVEL OF EVIDENCE: Level IV.
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