ArticleBone & joint open2021
Lower pelvic tilt, lower pelvic incidence, and increased external rotation of the iliac wing in patients with femoroacetabular impingement due to acetabular retroversion compared to hip dysplasia.
Article in Bone & joint open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 25 citations in OpenAlex.
- Standing anterior pelvic tilt is correlated with the proximal femur shape of individuals with cam morphology.Clinical biomechanics (Bristol, Avon) · 2026Article
- Pelvic tilt remains unchanged after periacetabular osteotomy: A single-arm multilevel meta-analysis and meta-regression.Journal of experimental orthopaedics · 2025Review
- Normative values of the sagittal lumbopelvic alignment in children during the first decade of life : A retrospective observational study from a German paediatric orthopaedic hospital.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Observational
- Frequency of lumbopelvic malalignment in symptomatic hip instability and impingement - a prospective, diagnostic cohort study.Archives of orthopaedic and trauma surgery · 2025Article
- Lumbopelvic hyperlordosis is linked to higher femoral head coverage, lower femoral anteversion and younger age at periacetabular osteotomy.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Correlation between Iliac Tilt and traditional sagittal parameters in adolescents.Journal of orthopaedic surgery and research · 2025Article
- The paradox of lumbopelvic alignment in anterolateral and posterolateral phenotypes of symptomatic hip dysplasia.Journal of experimental orthopaedics · 2025Article
- No Effect of Cigarette Smoking in the Outcome of Arthroscopic Management for Femoroacetabular Impingement: A Systematic Review.Journal of clinical medicine · 2024Review
- [Preoperative MR imaging for hip dysplasia : Assessment of associated deformities and intraarticular pathologies].Orthopadie (Heidelberg, Germany) · 2023Review
- Large Hip Impingement Area and Subspine Hip Impingement in Patients With Absolute Femoral Retroversion or Decreased Combined Version.Orthopaedic journal of sports medicine · 2023Article
- [Lumbo-pelvino-acetabular alignment-basics and clinical consequences].Orthopadie (Heidelberg, Germany) · 2022Review
- Combined abnormalities of femoral version and acetabular version and McKibbin Index in FAI patients evaluated for hip preservation surgery.Journal of hip preservation surgery · 2022Article
- How frequent is absolute femoral retroversion in symptomatic patients with cam- and pincer-type femoroacetabular impingement?Bone & joint open · 2022Article
- Diagnosis of acetabular retroversion: Three signs positive and increased retroversion index have higher specificity and higher diagnostic accuracy compared to isolated positive cross over sign.European journal of radiology open · 2022Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsThe effect of pelvic tilt (PT) and sagittal balance in hips with pincer-type femoroacetabular impingement (FAI) with acetabular retroversion (AR) is controversial. It is unclear if patients with AR have a rotational abnormality of the iliac wing. Therefore, we asked: are parameters for sagittal balance, and is rotation of the iliac wing, different in patients with AR compared to a control group?; and is there a correlation between iliac rotation and acetabular version?
methodsA retrospective, review board-approved, controlled study was performed including 120 hips in 86 consecutive patients with symptomatic FAI or hip dysplasia. Pelvic CT scans were reviewed to calculate parameters for sagittal balance (pelvic incidence (PI), PT, and sacral slope), anterior pelvic plane angle, pelvic inclination, and external rotation of the iliac wing and were compared to a control group (48 hips). The 120 hips were allocated to the following groups: AR (41 hips), hip dysplasia (47 hips) and cam FAI with normal acetabular morphology (32 hips). Subgroups of total AR (15 hips) and high acetabular anteversion (20 hips) were analyzed. Statistical analysis was performed using analysis of variance with Bonferroni correction.
resultsPI and PT were significantly decreased comparing AR (PI 42° (SD 10°), PT 4° (SD 5°)) with dysplastic hips (PI 55° (SD 12°), PT 10° (SD 6°)) and with the control group (PI 51° (SD 9°) and PT 13° (SD 7°)) (p < 0.001). External rotation of the iliac wing was significantly increased comparing AR (29° (SD 4°)) with dysplastic hips (20°(SD 5°)) and with the control group (25° (SD 5°)) (p < 0.001). Correlation between external rotation of the iliac wing and acetabular version was significant and strong (r = 0.81; p < 0.001). Correlation between PT and acetabular version was significant and moderate (r = 0.58; p < 0.001).
conclusionThese findings could contribute to a better understanding of hip pain in a sitting position and extra-articular subspine FAI of patients with AR. These patients have increased iliac external rotation, a rotational abnormality of the iliac wing. This has implications for surgical therapy with hip arthroscopy and acetabular rim trimming or anteverting periacetabular osteotomy (PAO). Cite this article:
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