Cited by 476Hip disorders and treatmentsLower Extremity Biomechanics and PathologiesShoulder Injury and Treatment

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Prevalence of Femoroacetabular Impingement Imaging Findings in Asymptomatic Volunteers: A Systematic Review

Frank, Jonathan M., Harris, Joshua D., Erickson, Brandon J., Slikker, William, Bush‐Joseph, Charles A., Salata, Michael J., Nho, Shane J.·2015·Arthroscopy

DOI 10.1016/j.arthro.2014.11.042

Open this paper in CoChat — free account

Abstract

Purpose: The aim of this study was to determine the prevalence of radiographic findings suggestive of femoroacetabular impingement (FAI) in asymptomatic individuals. Methods: A systematic review was performed using Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines. Studies reporting radiographic, computed tomographic, or magnetic resonance imaging (MRI) findings that were suggestive of FAI in asymptomatic volunteers were included. Cam, pincer, and combined pathologic conditions were investigated. Results: We identified 26 studies for inclusion, comprising 2,114 asymptomatic hips (57.2% men; 42.8% women). The mean participant age was 25.3 ± 1.5 years. The mean alpha angle in asymptomatic hips was 54.1° ± 5.1°. The prevalence of an asymptomatic cam deformity was 37% (range, 7% to 100% between studies)—54.8% in athletes versus 23.1% in the general population. Of the 17 studies that measured alpha angles, 9 used MRI and 9 used radiography (1 study used both). The mean lateral and anterior center edge angles (CEAs) were 31.2° and 30°, respectively. The prevalence of asymptomatic hips with pincer deformity was 67% (range 61% to 76% between studies). Pincer deformity was poorly defined (4 studies [15%]; focal anterior overcoverage, acetabular retroversion, abnormal CEA or acetabular index, coxa profunda, acetabular protrusio, ischial spine sign, crossover sign, and posterior wall sign). Only 7 studies reported on labral injury, which was found on MRI without intra‐articular contrast in 68.1% of hips. Conclusions: FAI morphologic features and labral injuries are common in asymptomatic patients. Clinical decision making should carefully analyze the association of patient history and physical examination with radiographic imaging. Level of Evidence: Level IV, systematic review if Level II‐IV studies.

Integrity signals

Registry

Crossref · 10.1016/j.arthro.2014.11.042

Cites

0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Preferred Reporting Items for Systematic Reviews and Meta-Analyses: the PRISMA statement
Moher, D., Liberati, A., Tetzlaff, J., Altman, D. G., & for the PRISMA Group (2009) · BMJ · doi:10.1136/bmj.b2535 · Cited by 83,823
Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement
Moher, D., Liberati, A., Tetzlaff, J., & Altman, D. G. (2009) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2009.06.005 · Cited by 19,575

Flagged first, then by citations

Show all 0 references

Research works printed but not linked: 45

10.5435/00124635-201300001-00004 · DOI
10.1097/01.blo.0000096804.78689.c2 · DOI
10.1097/01.blo.0000246536.90371.12 · DOI
10.1097/01.blo.0000181147.86058.74 · DOI
10.1007/s11999-010-1539-6 · DOI
10.1097/01.blo.0000136903.01368.20 · DOI
10.2106/JBJS.H.00756 · DOI
10.1177/0363546513499227 · DOI
10.1007/s00256-012-1544-9 · DOI
10.2106/JBJS.K.01664 · DOI
10.1016/j.arthro.2012.10.024 · DOI
10.1177/0363546513483448 · DOI
10.1097/RLI.0b013e3182518d57 · DOI
10.1016/j.ejrad.2012.04.008 · DOI
10.6061/clinics/2012(05)10 · DOI
10.1177/0363546512439991 · DOI
10.1177/0363546512462124 · DOI
10.1177/0363546512441328 · DOI
10.1002/jor.21371 · DOI
10.2106/JBJS.K.00544 · DOI
10.1002/jmri.22528 · DOI
10.1007/s11420-010-9192-x · DOI
10.1002/art.30589 · DOI
10.1177/0363546510388931 · DOI
10.2106/JBJS.J.01280 · DOI
10.1002/acr.20198 · DOI
10.1016/j.joca.2009.04.016 · DOI
10.1002/mrm.22166 · DOI
10.1302/0301-620X.91B5.22028 · DOI
10.1002/mrm.21190 · DOI
10.1097/BLO.0b013e3180f60b53 · DOI
10.1016/j.joca.2006.03.017 · DOI
10.2214/ajr.167.4.8819406 · DOI
10.5435/00124635-201300001-00005 · DOI
10.1007/s11999-011-1945-4 · DOI
10.1177/0363546514524364 · DOI
10.1016/j.orthres.2005.03.011.1100230608 · DOI
10.1302/0301-620X.84B4.0840556 · DOI
10.2106/JBJS.I.00326 · DOI
10.1007/s00167-013-2678-6 · DOI
10.1002/jor.22086 · DOI
10.1007/s11999-012-2689-5 · DOI
10.1007/s00330-010-1956-7 · DOI
10.2214/AJR.07.3669 · DOI
Reurink G., 2012, Reliability and validity of diagnosing acetabular labral lesions with magnetic resonance arthrography, J Bone Joint Surg Am., 94

Sorted by citations

Items 301–400 of 422

Actividad Sexual en Pacientes con Pinzamiento Femoroacetabular: Revisión Narrativa de la Literatura
Lira, M., Klaber, I., Vidal, C., Mery, P., & Schweitzer, D. (2024) · Revista Chilena de Ortopedia y Traumatología · doi:10.1055/s-0045-1809037 · Cited by 1
“6,7 FAI originates from a combination of abnormalities in both the femoral head and the acetabulum, posing a risk of soft tissue injury such as labral damage or chondral tears, and an increased risk of developing osteoarthritis in the long term.”
Femoroacetabular Impingement and Groin Injuries Among Soccer Players
Nickerson, M., & Herickhoff, P. (2024) · Sports medicine and arthroscopy review · doi:10.1097/jsa.0000000000000394 · Cited by 1
3.0T magnetic resonance imaging‐based hip bone models for femoroacetabular impingement syndrome are equivalent to computed tomography‐based models
Newhouse, A., Alter, T. D., Handoklow, L. A., Orías, A. E., Inoue, N., & Nho, S. J. (2024) · Journal of Orthopaedic Research · doi:10.1002/jor.25845 · Cited by 1
Self-citation
Acetabular Impingement Management Including Focal and Global Retroversion and the Subspine
Boden, S. A., Ayala, S., García, J., Berreta, R., Allende, F., & Chahla, J. (2024) · Operative techniques in sports medicine · doi:10.1016/j.otsm.2024.151063 · Cited by 1
Novel Method for Detecting the Stage of Arthrosis and Femoroacetabular Impingement Using a Gyroscopic Sensor and Neural Networks.
Holeka, P., Studnička, F., Stepan, J., Matyska, J., Šlégr, J., Páral, J., Šmejkal, K., & Lochman, P. (2023) · Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca · doi:10.55095/achot2023/041 · Cited by 1
RETRACTED ARTICLE: Efficacy and safety of arthroscopy in femoroacetabular impingement syndrome: a systematic review and meta-analysis of randomized clinical trials
Lamo-Espinosa, J., Mariscal, G., Gómez-Álvarez, J., & San-Julián, M. (2023) · Scientific Reports · doi:10.1038/s41598-023-43441-y · Cited by 1
Retracted
Increased asphericity of the femoral head-neck junction in professional breakers compared to hobby athletes – a retrospective case-control study
Weinrich, L., Niemann, M., Braun, K. F., Ahmad, S. S., Stöckle, U., & Meller, S. (2023) · Physician and sportsmedicine · doi:10.1080/00913847.2023.2256210 · Cited by 1
“Two systematic reviews by Frank et al. and Mascarenhas et al. reported a prevalence of pincer morphology among athletes of between 49.5% and 51.2%, respectively [58,59].”
Influential
The Effect of cam and pincer morphology on hamstring injury rates and return to play in elite young male football players
Dinç, E., Arslan, S., & Akıkol, M. (2023) · Acta Orthopaedica et Traumatologica Turcica · doi:10.5152/j.aott.2023.22115 · Cited by 1
Particularities on Anatomy and Normal Postsurgical Appearances of the Hip.
Gómez, M. P. A., Aparisi, F., Guglielmi, G., & Bazzocchi, A. (2022) · The Radiologic clinics of North America · doi:10.1016/j.rcl.2022.10.002 · Cited by 1
Conflits fémoro-acétabulaires, épidémiologie et diagnostic : revue de la littérature (partie 1)
Leroy, R., Delvaux, F., Kaux, J., Croisier, J., & Martens, G. (2022) · Journal de Traumatologie du Sport · doi:10.1016/j.jts.2022.10.004 · Cited by 1
Bedeutung des femoroazetabulären Impingements im Sport
Riedl, M., & Fickert, S. (2022) · Arthroskopie · doi:10.1007/s00142-022-00522-w · Cited by 1
“Zusammenfassend ist jedoch festzuhalten, dass sich radiologische Zeichen eines FAI in einem großen Teil der asymptomatischen Bevölkerung finden und Leistungssportler insbesondere in Sportartenmit speziellem Risikoprofil wesentlich häufiger betroffen sind.”
BackgroundInfluential
Beyond the Basics of Athletic Hip Evaluation
Campbell, A. M., & Voight, M. (2022) · Arthroscopy, Sports Medicine, and Rehabilitation · doi:10.1016/j.asmr.2021.10.032 · Cited by 1
“In this same review, labral injury was identified on noncontrasted magnetic resonance imaging (MRI) in 68% of total subjects.(3) If these deformities are seemingly more commonplace, it begs the question as to why some individuals demonstrate increased resilience and compensate with no intervention, while others are de…”
Background
The prevalence of femoroacetabular impingement in asymptomatic hips in Indian population: a radiomorphometric analysis
Namboodikandy, M. F., Inassi, J., & Zacharia, B. (2021) · International Journal of Research in Orthopaedics · doi:10.18203/issn.2455-4510.intjresorthop20213177 · Cited by 1
“The athletic population had a higher prevalence in both types.(16) In another study, a cohort of 110 people without hip symptoms were screened for radiological signs of cam and pincer deformities, with an anteroposterior and cross-table lateral view.”
Background
Femoroacetabular Impingement and Labral Tear: From the Most Highly Cited Articles to Research Interests
Tang, N., Zhang, W., Su, Y., Han, Z., Deng, L., Li, Y.-S., Huang, T.-L., & Li, C.-B. (2021) · Orthopaedic Surgery · doi:10.1111/os.13037 · Cited by 1
Femoroacetabular Impingement (FAI): Current Clinical Approaches
Geer, R., Goldsmith, C., & Moley, P. J. (2021) · Current Physical Medicine and Rehabilitation Reports · doi:10.1007/s40141-021-00309-4 · Cited by 1
“This high prevalence is even more notable in the athletic population (3:1 prevalence compared to non-athletes), suggesting that vigorous sporting activity during adolescence may increase the risk of cam morphology [8, 13].”
BackgroundInfluential
[Research progress in arthroscopic treatment of acetabular labrum injury].
Cao, J.-G., & Chen, D.-S. (2020) · Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · doi:10.7507/1002-1892.202002161 · Cited by 1
Gesundes Gewebe kräftigen – Tendinopathien der unteren Extremität
Garlich, C. (2020) · physiopraxis · doi:10.1055/a-1261-1494 · Cited by 1
Use of a Hip Spica for Management of an Acetabular Labral Tear in a Female Collegiate Gymnast: A Case Report
Greenwood, A., Giblin, N. A., & Gillette, C. M. (2020) · doi:10.1123/ijatt.2018-0076 · Cited by 1
Editorial Commentary: What Exactly Is Impingement-Can Dynamic Magnetic Resonance Imaging "See" Impingement in Femoroacetabular Impingement?
Harris, J. (2019) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1016/j.arthro.2019.05.009 · Cited by 1
Self-citation
Démembrement des pathologies chroniques de la hanche du sportif
Maillard, B., & Kaux, J. (2019) · Journal de Traumatologie du Sport · doi:10.1016/j.jts.2019.02.001 · Cited by 1
“[12] Frank JM, Harris JD, Erickson BJ, Slikker W, Bush-Joseph CA,”
Femoroacetabular Impingement Syndrome and Total Hip Arthroplasty: Joint Biomechanics Before and After Surgery
Catelli, D. (2019) · doi:10.20381/ruor-22890 · Cited by 1
“…several limitations involve these studies, with primarily not controlling the type of deformity of the FAI participants and also not controlling if the healthy participants were asymptomatic FAI, which may account for over 20% of the general population (Frank et al., 2015; Hack et al., 2010).”
Background
Knorpeltherapie: Wie ist die Evidenz?
Fickert, S., & Thier, S. (2018) · Arthroskopie · doi:10.1007/s00142-018-0248-0 · Cited by 1
CORR Insights®: What Are the Reference Values and Associated Factors for Center-edge Angle and Alpha Angle? A Population-based Study
torres-Gómez, A. (2018) · Clinical Orthopaedics and Related Research · doi:10.1097/corr.0000000000000452 · Cited by 1
“D printing and computer simulation may have a role in how we study FAI.”
Influential
Development of appropriateness criteria for hip arthroscopy in patients with femoroacetabular impingement
Molina-Linde, J. M., Carlos-Gil, A. M., Benot-López, S., Lacalle-Remigio, J. R., García-Benítez, B., Delgado-Martínez, A., & Silva-Gallardo, L. (2018) · Revista Española de Cirugía Ortopédica y Traumatología · doi:10.1016/j.recote.2018.07.005 · Cited by 1
Strategies in managing the labrum
Harris, J. (2018) · Annals of Joint · doi:10.21037/aoj.2018.06.06 · Cited by 1
“Clinicians must be cognizant of the high prevalence of asymptomatic imaging abnormalities in the general population and in specific athletic groups (29).”
BackgroundSelf-citation
Editorial Commentary: A Hip Scope Scoping Review on Surgical Outcome Reporting-If You Want to Know the Answer, You Have to Ask the Question.
Harris, J. (2018) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1016/j.arthro.2018.02.008 · Cited by 1
Self-citation
Diagnosis and management of femoroacetabular impingement: A review of the literature
O'Shea, A., Crowley, C., & Crowley, D. (2018) · doi:10.3233/ppr-170101 · Cited by 1
“[5]reportedthatthe prevalenceofasymptomatichipswithadeformityof thefemoralhead/neckwas37%(range7%to100% betweenstudies).”
Cumulative Effects of Occupational Loading as a Risk Factor for Hip Pain in UK Military Personnel - Study Protocol of a Case Control Study
Coppack, R. J. (2017) · International Journal of Sports and Exercise Medicine · doi:10.23937/2469-5718/1510060 · Cited by 1
“Recent literature reports an estimated prevalence rate of 23%-67% radiographic FAI in the general population [9].”
Background
CORR Insights®: Acetabular Wall Indices Help to Distinguish Acetabular Coverage in Asymptomatic Adults with Varying Morphologies
Piuzzi, N. (2017) · Clinical Orthopaedics and Related Research · doi:10.1007/s11999-016-5089-4 · Cited by 1
“However, abnormal acetabular morphology is common among asymptomatic subjects [3, 4, 7, 8], so we will depend on future studies to compare differences in acetabular morphology between asymptomatic and symptomatic hips.”
Pelvis and Hip Injuries/Core Injuries in Football
Roach, R. P., Clay, T. B., & Emblom, B. A. (2021) · doi:10.1007/978-3-030-54875-9_9 · Cited by 1
Lower Limb Pain and Dysfunction
Huntoon, E., Louise, K., & Caldwell, M. (2021) · doi:10.1016/b978-0-323-62539-5.00036-9 · Cited by 1
Hip, Pelvis and Sacro-Iliac Joints
Mascarenhas, V., Castro, M., & Afonso, P. D. (2020) · Medical radiology · doi:10.1007/174_2020_256 · Cited by 1
Conflit fémoroacétabulaire chez le sportif : mise au point
Хан, О. М., O'Donnell, J., & Chau, M. (2026) · EMC - Appareil locomoteur · doi:10.1016/s0246-0521(26)51960-0
Editorial Commentary: Basketball Players Return to Sport at a High Rate-Now We Must Embrace the Challenge of Reporting Longer-Term Outcomes and Identifying Predisposing Factors for Hip Pathology!
Hemstock, R., & Ayeni, O. (2026) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1002/arj.70716
Staged and Simultaneous Bilateral Hip Arthroscopy for Femoroacetabular Impingement Syndrome Achieves Clinical Outcomes Comparable With Unilateral Surgery at a Minimum 2-Year Follow-Up: A Systematic Review.
Cao, Z.-H., Gao, G.-Y., Kim, J.-W., Wang, J.-Q., & Xu, Y. (2026) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1002/arj.70641
Duration Between Staged Bilateral Hip Arthroscopy Does Not Affect Outcomes in Patients With Femoroacetabular Impingement Syndrome.
Messina, J. C., Li, Z. I., Kingery, M. T., Garra, S., Shen, M. S., Moore, M. R., & Youm, T. J. (2026) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1002/arj.70621
Hip arthroscopy in Sweden: a nationwide registry study of socioeconomic characteristics, regional variation, and sick leave patterns
Wadström, M. G., Stålman, A., Wörner, T., Eek, F., Hailer, N., Kraus-Schmitz, J., & Hailer, Y. (2026) · Acta Orthopaedica · doi:10.2340/17453674.2026.46648
Supine Versus Standing Pelvic Radiographs Yield Significantly Different Radiographic Parameters in Femoroacetabular Impingement and Hip Dysplasia: A Systematic Review and Meta-analysis.
Kodra, J. D., Girardi, K. G., Marinelli, S., Surucu, S., MacLeod, J. S., Schab, A. R., Lee, M. S., Moran, A., Vasudevan, R., Moran, J., et al. (2026) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1002/arj.70547
Positive Response to Preoperative Intra-articular Anesthetic Injection Suggests Favorable Outcomes After Hip Arthroscopy in Patients With Femoroacetabular Impingement Syndrome: A Systematic Review.
Deshpande, V. A., Saunders, P., Intarachumnum, N., Zediker, C. R., & Parvaresh, K. (2026) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1002/arj.70477
Femoroacetabular Impingement: Current Concepts and Evolving Management Strategies in 2025
Caldwell, K., & Sookochoff, M. (2026) · Current Physical Medicine and Rehabilitation Reports · doi:10.1007/s40141-026-00548-3
Hybrid arthroscopy and mini-open direct anterior approach for femoroacetabular impingement: A case series in Indian patients.
Manhas, V., Behera, A., Sehrawat, S., Samanta, A., & Jose, L. (2026) · Journal of Clinical Orthopaedics and Trauma · doi:10.1016/j.jcot.2026.103548
Advanced Femoral Osteochondroplasty: Achieving 2-Tier Sphericity and Symmetry
Ina, J. G., Kopriva, J. M., & Salata, M. J. (2026) · Clinics in Sports Medicine · doi:10.1016/j.csm.2026.03.007
Self-citation
Femoroacetabular Impingement Syndrome: Clinical Assessment and Surgical Management
Wishman, M. D., & Westermann, R. (2026) · Operative Techniques in Orthopaedics · doi:10.1016/j.oto.2026.101226
Prevalence of femoroacetabular impingement in the general adult population: A systematic review of population-based studies
Low, W. X., Liew, I., Fortune, M., & Khanduja, V. (2026) · International Orthopaedics · doi:10.1007/s00264-026-06899-9
“The normative alpha angle ranged between 43.6º and 55.0º, consistent with previous reviews reporting pooled means of 54.1º and 47.0º in asymptomatic populations [9, 38].”
Influential
Symptom Severity due to Femoroacetabular Impingement Syndrome Is Correlated With Radiographic Signs of Acetabular Retroversion but No Other Impingement Parameters
Kossoff, N. R., Romero-Padrón, M., & Everhart, J. S. (2026) · HSS Journal ® · doi:10.1177/15563316261460402
“11,14 This variability may reflect differences in imaging modality (2D radiography vs 3D MRI or computed tomography), thresholds for defining cam or pincer morphology, study sample composition, or the use of diverse patient-reported outcome tools.”
Role Of Maitland Mobilization Approach Combined With Conventional Physiotherapy To Improve Pain And Range Of Motion In Subjects With Acetabular Femoral Impingement
Bábal, M., Prajapati, Y., Taneja, D., Ranjeeta, W., Bohra, A., & Buliya, A. (2026) · International Journal For Multidisciplinary Research · doi:10.36948/ijfmr.2026.v08i03.80012
Hip Arthroscopy in Dysplasia: Addressing Anatomy and Setting Yourself up for Periacetabular Osteotomy Success.
Ronna, B. B., Chrumka, A., & Spiker, A. M. (2026) · Clinics in Sports Medicine · doi:10.1016/j.csm.2026.03.008
Outcomes and return to sport following arthroscopic surgery for femoroacetabular impingement syndrome in rugby union players
Portet, A., Lambrey, P.-J., Souberou, L., Hager, J., & Thaunat, M. (2026) · BMC Musculoskeletal Disorders · doi:10.1186/s12891-026-09870-2
Evaluating the Prevalence of Signs and Symptoms Associated With Hip-Related Groin Pain in Youth Ice Hockey and Ringette, Part 1: A Reliability and Cross-Sectional Study.
Martin, M., Soligon, C. A., Galarneau, J., Bullock, G. S., Mohtadi, N. G., Schneider, G., & Emery, C. A. (2026) · Clinical Journal of Sports Medicine · doi:10.1097/jsm.0000000000001438
Asymmetric bony hip morphology in asymptomatic professional baseball pitchers: a cross-sectional cohort study
Fuchs, R. K., Mehling, C., Kight, E., Pinchock, A., Palmer, A., Fernquest, S., & Warden, S. J. (2026) · BMC Sports Science, Medicine and Rehabilitation · doi:10.1186/s13102-026-01568-1
Return-to-Sport Rates and Functional Outcomes After Hip Arthroscopy for Femoroacetabular Impingement in Young Football Athletes: A 9.8-Year Follow-up
Schaefer, J. J., Kang, L. S., Ward, G., Graden, N., Levy, B. A., Hevesi, M., Krych, A. J., & Okoroha, K. R. (2026) · Orthopaedic Journal of Sports Medicine · doi:10.1177/23259671261419484
“The prevalence of cam-type deformities in athletes has been reported to be twice that of the general population, 8 with one series of 200 patients with FAI reporting that 70% of patients \ 30 years old were involved in athletics.”
Pulvinar signal abnormalities on MRI are associated with atraumatic hip pain
Marth, A., Tangsombatvisit, B., Akkaya, Z., Joseph, G., Zhang, A. L., Souza, R., & Link, T. M. (2026) · Skeletal Radiology · doi:10.1007/s00256-026-05169-4
“…with atraumatic hip pain demonstrates no structural imaging abnormalities; conversely, the significance of some imaging abnormalities, including isolated acetabular labral tears and gluteal tendinopathy, is unclear, as these findings are frequently encountered in asymptomatic individuals [2–5].”
The Impact of Radiomics Image Analysis on Adult Hip Pathologies: A Scoping Review
Parisi, F., Zampogna, B., del Monaco, A., Giurazza, G., Zappalà, E., Zampoli, A., Ferrini, A., Santucci, D., Vergantino, E., Lamja, S., et al. (2026) · Journal of Clinical Medicine · doi:10.3390/jcm15041366
“In a similar vein, methodological variations and disputed thresholds affect the morphometric indices used for FAI [7,13].”
Femoroacetabular impingement–related deformities correlate with advanced osteoarthritis in asymptomatic caucasians over 60: A CT-based cross-sectional study
Blum, S., Schön, F., Brauer, K., Bellova, P., Kühn, J., Hoffmann, R.-T., Günther, K., & Goronzy, J. (2026) · Journal of Orthopaedics · doi:10.1016/j.jor.2026.02.041
Role of Imaging in Femoroacetabular Impingement Syndrome: From Pathomechanics to Patient-Specific Management
Heimann, A. F., Roshardt, J., Schmaranzer, F., & Sutter, R. (2026) · Seminars in Musculoskeletal Radiology · doi:10.1055/a-2817-2932
Comparative efficacy of hip arthroscopy versus structured non-surgical treatment for femoroacetabular impingement syndrome: a mid-term retrospective cohort study
Yang, S.-J., Wang, H., Wang, L.-C., Tian, X.-H., & Chen, G. (2025) · European Journal of Medical Research · doi:10.1186/s40001-025-03663-4
“With an estimated prevalence of approximately 20% in the general population, the incidence of FAIS varies based on factors such as age, gender, and activity level [3].”
Japanese Orthopaedic Association (JOA) clinical practice guidelines on the management of osteoarthritis of the hip, 2024- the third edition- secondary publication
Miyatake, K., Nakashima, Y., Inaba, Y., Kobayashi, N., Jinno, T., Kabata, T., Kajino, Y., Mitani, S., Endo, H., Hamai, S., et al. (2025) · Journal of Orthopaedic Science · doi:10.1016/j.jos.2025.10.006 · Cited by 1
Investigation of the Frequency of Femoroacetabular Impingement Using Computed Tomography Images
Yazıcı, K., Altunışık, M. Y., Aydın, B., Kılınç, S., & Öztemur, Z. (2025) · Cureus · doi:10.7759/cureus.99992
“They found the prevalence of pincer type to be 67% [20].”
A bibliometric analysis and visualization of research trends on femoroacetabular impingement syndrome
Zhang, Y., He, X.-L., Wang, S., Kang, L., Li, X.-Y., Xie, Y.-L., Chen, C., & Pang, Z. (2025) · Journal of Hip Preservation Surgery · doi:10.1093/jhps/hnaf057
“Furthermore, Jonathan M. Frank from Rush University authored the most cited article in the USA (local citations,140 times) [28],offering asystematic review and meta-analysis of FAIS prevalence in asymptomatic volunteers, finding a 37% prevalence of asymptomatic cam deformity and a 67% prevalence of…”
DIAGNOSIS OF FEMOROACETABULAR IMPINGEMENT SYNDROME
Ciołkosz, M., Antczak, T., Gajda-Bathelt, M., Dąbek, M., Jania, K., Perlicka, Z., Smolińska, K., Sadkowska, P., Kulczycka, J., & Popow, W. (2025) · International Journal of Innovative Technologies in Social Science · doi:10.31435/ijitss.3(47).2025.3538
Exploring radiographers' understanding of pain: an Australian survey study.
Dahlenburg, K., Spuur, K., Shephard, S., & Perez, W. P. (2025) · Radiography · doi:10.1016/j.radi.2025.103007
La déformation de type came dans le conflit fémoro-acétabulaire – un facteur de risque arthrosique. Et si on la résèque ?
Gauthier, M., Tscholl, P., Thoreux, P., & Hannouche, D. (2025) · Journal de Traumatologie du Sport · doi:10.1016/j.jts.2025.04.001
Hip-focused strengthening and task-specific movement training for an individual with chronic, recurrent femoroacetabular impingement syndrome.
Atkins, L., Ede, K., Reid, M. H., & Chan, D. (2025) · Physical Therapy in Sport · doi:10.1016/j.ptsp.2025.03.010
Femoroacetabular Impingement Morphological Changes in Sample of Patients Living in Southern Mexico Using Tomographic Angle Measures
Cárdenas-Dajdaj, R., Flores-Rivera, A., Rivero-Peraza, M., & Méndez-Domínguez, N. (2024) · Tomography · doi:10.3390/tomography10120141
Late-Onset Femoroacetabular Impingement Syndrome Following Knee Arthroscopy in a Retrospective Cohort
Rynecki, N. D., Kingery, M. T., Roller, R., Berzolla, E., Colasanti, C. A., & Youm, T. J. (2024) · Journal of Clinical Medicine · doi:10.3390/jcm13226992
Outcomes of Painful Hips After Hip Arthroscopy Surgery for Femoroacetabular Impingement
Verma, G. G., Goru, P., Heaton, R., Ahmed, T., Ismail, M., & Shah, S. V. (2024) · Cureus · doi:10.7759/cureus.68190
“Frank et al. reported impingement rates of cam at 37% and pincer at 67% in the systematic review [4].”
Background
Editorial Commentary: Hip Arthroscopy Benefits Patients with Tonnis Grade 0 or 1 Hip Arthritis, and Is Not Recommended for Grade 3: Optimal Treatment of Femoroacetabular Impingement Syndrome for Grade 2 Arthritis May Be Determined By Age and Body Mass Index.
Hohmann, E. (2024) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1016/j.arthro.2024.02.010
Cam-type hip morphology in asymptomatic patients
Almousa, S. A., Hegazi, T., AlKhamis, H. A., AlTayyar, Z. A., Almutairi, M., Alghamdi, S. A., Almuhaish, M. I., Alzaid, M., Alsubaie, S., & Alzahrani, M. M. (2024) · HIP International · doi:10.1177/11207000231225184
A fully automated pipeline of cam-type FAI parameters measurement from clinical computed tomography (CT) images in asymptomatic patients
Tayyebinezhad, S., Fatehi, M., Arabalibeik, H., & Ghadiri, H. (2023) · National and International Iranian Conference on Biomedical Engineering (ICBME) · doi:10.1109/icbme61513.2023.10488522
Refixation of labrum in pincer type of femoroacetabular impingement
Weng, J.-Y., & Zheng, Z.-H. (2023) · Journal of Medical Sciences · doi:10.4103/jmedsci.jmedsci_49_23
Des signes radiologiques de conflit fémoro-acétabulaire sont liés à la version pelvienne du sujet asymptomatique
Coulomb, R., Michaud, J., Maury, E. G., Bonin, N., Krantz, N., May, O., Thaunat, M., Bordes, M., Tardy, N., Martz, P., et al. (2023) · Revue de Chirurgie Orthopédique et Traumatologique · doi:10.1016/j.rcot.2023.10.013
A SYSTEM FOR WIRELESS MEASUREMENT OF HUMAN BIOMECHANICS
Holeka, P., Studnička, F., Stepan, J., Matyska, J., Šlégr, J., Odložilová, Š., Zajak, J., & Páral, J. (2023) · Military Medical Science Letters · doi:10.31482/mmsl.2023.038
CORR Insights®: Which Acetabular Measurements Most Accurately Differentiate Between Patients and Controls? A Comparative Study.
Tarwala, R. (2023) · Clinical Orthopaedics and Related Research · doi:10.1097/corr.0000000000002827
Hip Arthroscopy for Femoroacetabular Impingement
Gwathmey, F. W., & Raghuwanshi, J. S. (2023) · Video Journal of Sports Medicine · doi:10.1177/26350254231172998
“Many people have asymptomatic FAI morphology or labral tear, so pain is essential for indicating surgery.(1,2) Our patient is a 15-year-old high school kicker who presented before his sophomore season and endorsed pain after an extended practice.”
Background
An impairment-based physical therapy program for runners with femoroacetabular impingement (FAI).
Abdelmegeed, M., Katz, J., Oddo, T., & Pandya, S. (2023) · Health, sport, rehabilitation · doi:10.34142/hsr.2023.09.02.08
La lésion du labrum dans la dysplasie de hanche et le conflit fémoroacétabulaire : revue systématique de la littérature
Savoye-Laurens, T., Verdier, N., Wettstein, M., Baulot, E., Gédouin, J., & Martz, P. (2023) · Revue de Chirurgie Orthopédique et Traumatologique · doi:10.1016/j.rcot.2022.12.033
Uncertain predictive value of traditional diagnosis for femoroacetabular impingement in young people. Is this a pure pathology or a morphological and functional sneaky feature?
Petruccelli, R., Manfreda, F., Giacomo, L. M. D., Ceccarini, P., Caraffa, A., & Antinolfi, P. (2022) · LO SCALPELLO-OTODI Educational · doi:10.36149/0390-5276-252
Determining Clinically Meaningful Outcomes after Isolated Acetabuloplasty in the Context of Age and Arthritic Severity: A Retrospective Review of Prospectively Collected Data
Huyke-Hernández, F. A., Samagh, S. P., Hassan, M. M., Tjong, V., & Terry, M. (2022) · The Journal of Hip Surgery · doi:10.1055/s-0042-1757328
Hip Preservation in the Lacrosse Athlete (Review)
Zacharias, A. J., & Spiker, A. M. (2022) · Journal of Cartilage & Joint Preservation · doi:10.1016/j.jcjp.2022.100087
Isolated Rectus Femoris Rupture with Ipsilateral Femoroacetabular Impingement in a Collegiate Track Athlete: A Case Report
Walsh, J. W., Jimenez, M., Lee, G., & Whitfield, B. (2022) · Journal of Orthopaedic Case Reports · doi:10.13107/jocr.2022.v12.i07.2928
“Femoroacetabular impingement (FAI) is common in young athletes, presenting with a higher prevalence than the general population [12, 13].”
Background
Ergebnisse nach FAIS-Chirurgie – wie ist die Evidenz?
Fickert, S., & Landgraeber, S. (2022) · Die Orthopädie · doi:10.1007/s00132-022-04263-4
“Die Prävalenz asymptomatischer Hüften mit Pincer-Deformität beträgt 67% (61–76% zwischen den Studie) [8].”
Background
Correlation between Intensity of Pain and Disability Due to Intra-articular Lesions in Patients with Femoroacetabular Impingement Syndrome
Polesello, G., Rabelo, N. D., Garcia, J. T. F. C., Ricioli, W., Rudelli, M., & de Queiroz, M. C. (2022) · Revista brasileira de ortopedia · doi:10.1055/s-0041-1729573
Magnetic Resonance Imaging of the Hip
Lewis, P. B., DeFroda, S., Alter, T. D., Jan, K., Clapp, I., & Nho, S. (2021) · Hip Arthroscopy and Hip Joint Preservation Surgery · doi:10.1007/978-1-4614-7321-3_5-3
Self-citation
Femoroacetabular Impingement Syndrome and Labral Injuries
Agricola, R., van Buuren, M. V., & van Klij, P. (2021) · Management of Track and Field Injures · doi:10.1007/978-3-030-60216-1_14
Prevalence of Radiographic Signs of Pincer Deformities in Asymptomatic Indian Individuals: A Retrospective Analysis
Raina, V., Jadhav, P. U., & Sharan, S. (2021) · Indian Journal of Orthopaedics · doi:10.1007/s43465-021-00566-4
“[10], comprising 2114 individuals from 26 different studies analysing the radiological evidence of FAI in asymptomatic individuals, reported the prevalence of Cam deformity to be 37% and Pincer type as 67% which was significantly higher compared to our study results.”
Result
Femoral acetabular impingement labral pathology on MRI is correlated with greater hip flexion and decreased abduction in collegiate water polo players: A pilot study.
Hall, K. E., Langner, J. L., Segovia, N., Schultz, B. J., Andriacchi, T., Gold, G., & Safran, M. (2021) · Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine · doi:10.1016/j.jisako.2021.10.003
Title of the article: Inter-observer concordance in normal and pathological findings of the hip joint in plain radiographs
Atria, M. G., Calvi, M., Zorzetto, G., Curti, M., Duvia, M., Celentano, A., Venturini, M., & Genovese, E. (2021) · Acta bio-medica : Atenei Parmensis · doi:10.23750/abm.v92i4.11433
No Association Between Intrauterine Contraceptive Devices and Musculoskeletal Hip Joint Pain
Varady, N. H., Abraham, P., Kucharik, M., Eberlin, C. T., Freccero, D., Smith, E. L., & Martin, S. D. (2021) · Arthroscopy, Sports Medicine, and Rehabilitation · doi:10.1016/j.asmr.2021.07.003
“Arthroscopy, Sports Medicine, and Rehabilitation, V Moreover, radiologic musculoskeletal abnormalities are present in as many as 50% of asymptomatic, prearthritic individuals.(10,14-18) Thus, the appropriate correlation of imaging abnormalities and patient symptomatology is a challenge presented to physicians and spea…”
Background
The Pediatric Hip.
Zbojniewicz, A. M., & Borders, H. L. (2021) · Seminars in roentgenology · doi:10.1053/j.ro.2021.06.002
Démembrement des pathologies aiguës de la hanche du sportif
Maillard, B., Sanfilippo, D., Collin, R., Thirion, T., & Kaux, J. (2021) · Journal de Traumatologie du Sport · doi:10.1016/j.jts.2021.02.003
“, les sportifs sont les plus concernés [24].”
BackgroundInfluential
CORR Insights®: Does the Capital Femoral Physis Bony Morphology Differ in Children with Symptomatic Cam-type Femoroacetabular Impingement.
Hosalkar, H. (2021) · Clinical Orthopaedics and Related Research · doi:10.1097/corr.0000000000001646
“A cam-type morphology is an aspherical contour of the femoral head-neck junction that may lead to abnormal contact with the acetabular rim in FAI [1, 3, 5, 8].”
Background
Incidence of radiographic findings of femoroacetabular impingement in a healthy Egyptian population: a cross-sectional study
Abdelazeem, A., Akef, A., Hadiedy, T. E., & Fahmy, M. (2020) · doi:10.1097/bco.0000000000000947
“In our study the prevalence of cam deformity was 34% and pincer deformities on both the right and left sides were fewer than those measured by Frank et al.(14) Philippon et al.”
BackgroundInfluential
Hip morphology and its relationship with hip strength, mobility and lower limb biomechanics: a systematic review in adults
Ferraz, A., Fontana, H. D. B., de Castro, M. D., Ruschel, C., Pierri, C. A. A., & Roesler, H. (2020) · Revista Brasileira de Cineantropometria & Desempenho Humano · doi:10.1590/1980-0037.2020v22e67085
Clinical Outcomes of Physiotherapy for Patients with Acetabular Labral Tears: An Analysis According to Severity of Injury
Kawai, M., Tateda, K., Ikeda, Y., Motomura, R., Kosukegawa, I., Kaya, M., Nagoya, S., & Katayose, M. (2020) · doi:10.21203/rs.3.rs-80666/v1
“Furthermore, abnormal bone morphologies, such as pincer and cam deformity, have been reported in asymptomatic individuals [16, 17].”
Background
Evaluation of an examination chair to quantify the hip internal rotation angle
Friesenbichler, B., Casartelli, N. C., Maffiuletti, N., & Leunig, M. (2020) · HIP International · doi:10.1177/1120700019861315
Joint preservation surgery: a priority to be thought of in selective hip osteoarthritis
Narayanan, S. K., & Sellappan, R. (2020) · doi:10.18203/issn.2455-4510.intjresorthop20200745
“The prevalence of asymptomatic FAI was discussed in a review article by Frank et al.7 which highlighted the importance of associating clinical history and physical exam with radiological findings before deciding to treat the impingement.”
Background
MR-Arthrographien
Streif, M., & Hirschmann, A. (2020) · Der Radiologe · doi:10.1007/s00117-020-00648-8
Die Fußballerhüfte
Landgraeber, S., & Dienst, M. (2019) · Der Orthopade · doi:10.1007/s00132-019-03844-0
Return to Sport Following Femoroacetabular Impingement Syndrome
O’Brien, L., Schallmo, M. S., & Stubbs, A. (2019) · Operative techniques in sports medicine · doi:10.1053/j.otsm.2019.04.009
Editorial Commentary: I Have a Hip Labral Tear? Well, That Makes Sense Because I Had a Labral Tear in My Shoulder Too.
Harris, J. (2019) · Arthroscopy: The Journal of Arthroscopy And Related · doi:10.1016/j.arthro.2019.01.005
Self-citation

Authors: Frank, J. M., Harris, J. D., Erickson, B. J., Slikker, W., Bush‐Joseph, C. A., Salata, M. J., & Nho, S. J.
Affiliations: Rush University Medical Center (US)
Corresponding author: Frank, Jonathan M.
ORCID: Frank, Jonathan M.
Harris, Joshua D.
Erickson, Brandon J.
Slikker, William
Salata, Michael J.
Nho, Shane J.
Venue: Arthroscopy
Publisher: Wiley
Published: 2015-01-28
Volume: 31
Issue: 6
Pages: 1199-1204
ISSN: 0749-8063 (ISSN-L)
1526-3231
DOI: 10.1016/j.arthro.2014.11.042
OpenAlex: W2027317771
Cited by: 476
References: 0
Citations by year: 2026: 33 · 2025: 36 · 2024: 35 · 2023: 35 · 2022: 46 · 2021: 42 · 2020: 52 · 2019: 49 · 2018: 47 · 2017: 33 · 2016: 43 · 2015: 24
FWCI: 9.38
Type: journal article
Language: en
Open access: closed
Licence: onlinelibrary.wiley.com/termsAndConditions#vor (vor)
doi.wiley.com/10.1002/tdm_license_1.1 (tdm)
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations: Arthroscopy The Journal of Arthroscopic and Related Surgery (publishedVersion)
PubMed (publishedVersion)
Topics: Health Sciences › Medicine › Surgery › Hip disorders and treatments
Physical Sciences › Engineering › Biomedical Engineering › Lower Extremity Biomechanics and Pathologies
Health Sciences › Medicine › Surgery › Shoulder Injury and Treatment
Keywords: femoroacetabular impingement, prevalence, cam deformity, alpha angle, center-edge angle, acetabular index, labral lesions, hip morphology, athletes
MeSH terms: Diagnostic Imaging, Hip Joint, Humans, Magnetic Resonance Imaging, Tomography, X-Ray Computed, Global Health, Prevalence, Femoracetabular Impingement, Healthy Volunteers

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Prevalence of Femoroacetabular Impingement Imaging Findings in Asymptomatic Volunteers: A Systematic Review

Abstract

Overview

Integrity signals

Verification

Claims the paper makes

Claims other papers make about this one

Citations

Cites

Cited by

Metadata

Record

About these checks