title: Descriptive Epidemiology of Patients Undergoing Total Hip Arthroplasty in Korea with Focus on Incidence of Femoroacetabular Impingement: Single Center Study.
abstract: We analyzed the causes leading to total hip arthroplasty (THA), aimed to clarify the incidence of femoroacetabular impingement (FAI) among the causes, and compared the incidence in Korea with those in other countries. From January 2000 to December 2014, 1,206 hips of 818 patients who underwent primary THA at our institute were reviewed retrospectively in terms of radiographs and electronic charts. The radiographs and radiographic parameters were reviewed and measured by 2 of the authors, who are orthopedic surgeons. Patients were categorized in terms of the causes leading to THA as primary osteoarthritis (OA), rheumatoid arthritis (RA), posttraumatic arthritis, post infectious arthritis, avascular necrosis (AVN) of the femoral head, fracture of the femoral head or neck, ankylosing spondylitis (AS), developmental dysplasia of the hip (DDH), Legg-Calvé-Perthes disease (LCPD), FAI, and others. There were 32 patients (3.91%) in the primary OA group, 41 (5.01%) in the RA group, 84 (10.27%) in the posttraumatic arthritis group, 39 (4.77%) in the post infectious arthritis group, 365 (44.62%) in the AVN group, 39 (4.77%) in the fracture group, 21 (2.57%) in the AS group, 52 (6.36%) in the DDH group, 71 (8.68%) in the LCPD group, 52 (6.36%) in the FAI group, and 22 (2.69%) in the 'other' group. The causes leading to THA in Korea differ from those in Western countries. FAI could be causes of severe secondary OA that requires THA in Korea, therefore symptomatic FAI should not be neglected.
authors.affiliation: Department of Orthopaedic Surgery, Chungnam National University School of Medicine, Daejeon, Korea.
authors.forename: Woo Yong
authors.identifier: http://orcid.org/0000-0001-8706-6026
authors.initials: WY
authors.lastname: Lee
authors.affiliation: Department of Orthopaedic Surgery, Chungnam National University School of Medicine, Daejeon, Korea. dshwang@cnu.ac.kr.
authors.forename: Deuk Soo
authors.identifier: http://orcid.org/0000-0003-1009-3784
authors.initials: DS
authors.lastname: Hwang
authors.affiliation: Department of Orthopaedic Surgery, Chungnam National University School of Medicine, Daejeon, Korea.
authors.forename: Chang Kyun
authors.identifier: http://orcid.org/0000-0002-6327-467X
authors.initials: CK
authors.lastname: Noh
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000453:epidemiology / Q000628:therapy; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D057925:Femoracetabular Impingement / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000628:therapy*; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000628:therapy; D006801:Humans; D015994:Incidence; D008297:Male; D010003:Osteoarthritis / Q000453:epidemiology / Q000628:therapy; D011859:Radiography; D012189:Retrospective Studies
keywords: Femoroacetabular Impingement; Hip; Incidence; Osteoarthritis; Total Hip Arthroplasty