title: Modern total hip arthroplasty in patients younger than 21 years.
abstract: Total hip arthroplasty (THA) is not commonly performed in adolescents. However, it may be the only option for pain control with continued mobility for advanced disease. We report our experience with modern alternative-bearing THA in patients younger than 21 years. Twenty-one THAs (18 patients) were followed. Preoperative and postoperative Harris hip scores were recorded, and radiographs were reviewed. Average follow-up was 49 months (range, 25-89). Underlying etiology was chemotherapy-induced osteonecrosis (33%), steroid-induced osteonecrosis (29%), sickle cell disease (24%), and chronic dislocation (14%). Articulation bearings were ceramic/ceramic (67%), metal/highly cross-linked polyethylene (29%), and metal resurfacing (5%). Mean age was 18 years (range, 13-20). Harris hip scores improved from 43.6 to 83.6 (P < .001). At final follow-up, there was no radiographic loosening; 1 THA was revised for a cracked ceramic liner. At intermediate-term follow-up, clinical and radiographic results are favorable after alternative-bearing THA in patients younger than 21 years.
authors: Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19102, USA.
authors: Atul F
authors: AF
authors: Kamath
authors: Neil P
authors: NP
authors: Sheth
authors: Harish H
authors: HH
authors: Hosalkar
authors: Oladapo M
authors: OM
authors: Babatunde
authors: Gwo-Chin
authors: GC
authors: Lee
authors: Charles L
authors: CL
authors: Nelson
mesh_terms: D000293:Adolescent; D000367:Age Factors; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult