Influence of Clinical and Radiological Variables on the Extent and Distribution of Periprosthetic Osteolysis in Total Hip Arthroplasty with a Hydroxyapatite-Coated Multiple-Hole Acetabular Component: A Magnetic Resonance Imaging Study

• Published in: The Journal of arthroplasty Vol. 29; no. 10; pp. 2043 - 2048
• Main Authors: Pérez-Coto, Iván, MD, Hernández-Vaquero, Daniel, MD, PhD, Suárez-Vázquez, Abelardo, MD, PhD, Sandoval-García, Manuel Ángel, MD, PhD, Escandon-Rodriguez, Ana, MD
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2014
• Subjects: Abduction; Acetabulum - surgery; Adult; Aged; Arthroplasty, Replacement, Hip - adverse effects; Arthroplasty, Replacement, Hip - methods; Biocompatibility; Biomedical materials; Bone Screws - adverse effects; Coated Materials, Biocompatible; Durapatite; Evolution; Female; hip arthroplasty; Hip Prosthesis - adverse effects; Humans; Hydroxyapatite; Magnetic Resonance Imaging; Male; Mathematical models; Middle Aged; Orthopedics; osteolysis; Osteolysis - diagnosis; Osteolysis - diagnostic imaging; Osteolysis - etiology; polyethylene wear; Prosthesis Design; Prosthesis Failure; Radiography; revision surgery; Surgical implants; revision surgery; hydroxyapatite; magnetic resonance imaging; hip arthroplasty; osteolysis; polyethylene wear
• ISSN: 0883-5403; 1532-8406
• DOI: 10.1016/j.arth.2014.05.020

Abstract Polyethylene wear-induced osteolysis constitutes the most severe long-term complication of total hip arthroplasties (THA). Our aim was to assess through MRI the severity and growth pattern of osteolysis, as well as the influence clinical-radiographic variables exert. We analyzed 75 THA with an average evolution time of 13.67 years. The implant was a titanium alloy, non-cemented, multiple-hole model with hydroxyapatite coating. Osteolysis was found with a peripheral pattern in 48 and a central pattern in 6; in 52 cases it was continuous, and in 4, isolated. Out of 118 screws, 20 exhibited lysis. There was a proportional correlation between osteolysis severity and wear rate with age, physical activity and acetabular abduction, as well as an association between said variables and peripheral and continuous patterns.