Prevalence of Radiographic Morphology of Femoroacetabular Impingement in Indian Population: A Multicenter Study
| Autor: | Chaitanya T. Waghchoure, Javahir A. Pachore, Aditya R. Daftary |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
musculoskeletal diseases
Adult Male medicine.medical_specialty Cross-sectional study Radiography Population Ischial spine India Femoracetabular Impingement Asymptomatic 03 medical and health sciences Young Adult 0302 clinical medicine Deformity Prevalence Medicine Humans Orthopedics and Sports Medicine education Femoroacetabular impingement 030203 arthritis & rheumatology 030222 orthopedics education.field_of_study business.industry Reproducibility of Results medicine.disease Healthy Volunteers medicine.anatomical_structure Cross-Sectional Studies Female Hip Joint Radiology medicine.symptom business |
| Zdroj: | The Journal of arthroplasty. 33(10) |
| ISSN: | 1532-8406 |
| Popis: | Background Femoroacetabular impingement (FAI) is an overlooked entity in India, as primary osteoarthritis of hip is uncommon in Indian population. The purpose of this study is to find out the prevalence of radiographic morphology of FAI in young asymptomatic population in India. Methods This is a multicenter, cross-sectional study. Radiographs of 500 young asymptomatic volunteers were taken from 10 centers across India. Suboptimal imaging lead to exclusion of 48 radiographs. Crossover sign, ischial spine sign, and posterior wall sign were included in “acetabular rotation abnormalities (R),” lateral center-edge angle and acetabular index were included in “acetabular overcoverage abnormalities (O)” while pistol grip deformity and alpha angle in “femoral abnormalities (F).” Furthermore, all the hips were divided into 4 types: normal hips (N); type I hip with single abnormality (R/O/F); type II with combination of any 2 (RO/RF/OF), and type III with all 3 abnormalities. Results Sixty-eight percent of 904 hips had at least 1 type of abnormality with 47.5% hips having signs of pincer impingement, 7.9% with signs of cam impingement, and 10.8% with mixed signs. Type I.R hips (32%) were the most common hips followed by type I.O hips (18%) and type I.F (8%). Males had higher percentage of abnormalities (1.5 times) compared to females. Interobserver reliability was 0.55 to 0.81 for all the parameters. Power of study was 0.98. Conclusion Radiographic morphology of FAI exists with high prevalence in young asymptomatic Indian population similar to other ethnicities except for low prevalence of cam morphology. Long-term follow-up of this cohort will reveal the natural history of these morphologies. |
| Databáze: | OpenAIRE |
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