Acetabular retroversion may contribute to femoroacetabular impingement and lead to osteoarthritis of the hip. Retroversion has been measured on computed tomography scans. In recent years, assessment of acetabular version on anteroposterior pelvic views has gained increasing attention. We therefore aimed to determine the reliability of radiographic signs of acetabular retroversion and its association with the rater's experience. Five orthopedic surgeons (o1 to o5) rated the crossover sign, ischial spine sign and posterior wall sign on X-rays of 40 hip joints. Also, we determined the rater's experience in recognizing acetabular retroversion with a questionnaire and correlated intraobserver reliability to the calculated experience score. The intraobserver results were 0.325 (o1), 0.848 (o2), 0.684 (o3), 0.701 (o4), and 1.000 (o5) for the crossover sign, 0.750 (o1), 0.890 (o2), 0.593 (o3), 0.483 (o4), and 0.946 (o5) for the posterior wall sign; and 0.578 (o1), 0.680 (o2), 0.595 (o3), 0.375 (o4), and 0.800 (o5) for the ischial spine sign. Interobserver reliability was 0.514 for the crossover, 0.633 for the posterior, and 0.543 for the ischial spine sign wall. The experience sum score correlated to the kappa results for the crossover (r = 0.527), posterior wall (r = 0.738), and ischial spine sign (r = 0.949). Assessing acetabular version on plain radiographs is subject to intra- and interindividual error and related to the observer's individual experience.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3103958 | PMC |
| http://dx.doi.org/10.1007/s00264-010-1035-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Erect Weight-Bearing Pelvic Radiographs are Superior to Supine Radiographs for Diagnosis of Mixed Type Acetabular Retroversion Plus Developmental Dysplasia Hip Deformity.
Arthroscopy
November 2024
Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China. Electronic address:
Purpose: this study focused on the mixed-type deformities of acetabular retroversion (AR) and developmental dysplasia of the hip (DDH) deformity and aimed to ascertain the changes in pelvic tilt from a supine to a standing position in these cases and identify potential underlying mechanisms.
Methods: A retrospective study was conducted on cases with symptomatic DDH from January 1, 2019, to April 30, 2023. DDH was defined as lateral center-edge angle (LCEA) <20°.
Radiographically Apparent Acetabular Sourcil Landmarks Are Created by Comparable Regions of the Pelvis With Extraarticular Bone Variably Confounding Estimates of Joint Coverage.
Clin Orthop Relat Res
October 2024
Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA.
Article Synopsis
- The study investigates the 3D anatomy related to the acetabular sourcil, which is used in calculating angles critical for diagnosing hip dysplasia through various imaging techniques.
- Researchers aimed to assess the consistency of measurements (LCEA and ACEA) taken by different observers and how those measurements relate to the anatomy being evaluated.
- Using CT scans from 20 patients undergoing hip surgeries, the study generated detailed models to better understand the distinct anatomical regions that influence these radiographic measurements.
Acetabular retroversion and cam morphology are contributing risk factors for posterior hip dislocation independent of the trauma mechanism.
Arch Orthop Trauma Surg
November 2024
Center for Musculoskeletal Surgery, Charitè - University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
Article Synopsis
- The study investigates the relationship between femoroacetabular morphology and the mechanisms of traumatic posterior hip dislocations in adults, focusing on differentiating between high-energy, sports-related, and low-energy trauma.
- A total of 141 patients with dislocations were compared to a control group, utilizing CT scans to measure various anatomical angles related to hip structure and injury.
- Findings revealed that most dislocations were due to high-energy events, with specific morphologies (like acetabular retroversion) linked to different trauma mechanisms, while low-energy impacts showed similar anatomy to the control group.
Three-dimensional acetabular reorientation during periacetabular osteotomy: an intraoperative navigation method using an external fixator for periacetabular osteotomy.
Arch Orthop Trauma Surg
November 2024
Department of Orthopedic Surgery, University Medical Center Regensburg, Kaiser-Karl-V.-Allee 3, 93077, Bad Abbach, Germany.
Introduction: Bernese periacetabular osteotomy (PAO) is an effective procedure for treating acetabular dysplasia. However, limited visual control of the acetabular position during surgery may result in under- or overcorrection or changes in acetabular version resulting in residual dysplasia or femoroacetabular impingement. Thus, we wanted to develop a simple and straightforward navigation method that provides information about acetabular correction in all three planes during surgery.
View Article and Find Full Text PDFA retrospective study describing the acetabular consequences of Legg- Calve-Perthes disease.
BMC Musculoskelet Disord
September 2024
SERGAS (Servizo Galego de Saude), Santiago University Clinical Hospital, Building C, Travesía da Choupana S/N, Santiago de Compostela, 15706, Spain.
Article Synopsis
- Legg Calve Perthes disease (LCPD) is a childhood hip disorder caused by reduced blood flow, leading to femoral head deformity if not treated.
- This study investigated four pelvic radiographic parameters to see if they can predict outcomes in LCPD patients, comparing data from healthy vs. affected hips.
- Significant differences were found in three parameters, but only the Acetabular Depth-Width Ratio was predictive of disease outcomes, highlighting the need for more extensive research.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!