naa a22 4500 510760570 CHVBK 20180411083137.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11420-013-9330-3 doi (NATIONALLICENCE)springer-10.1007/s11420-013-9330-3 Conversion of Arthrodesis to Total Hip Arthroplasty: Clinical Outcome, Complications, and Prognostic Factors of 21 Consecutive Cases [Elektronische Daten] [Manuel Villanueva, Francisco Sobrón, Javier Parra, Jose Rojo, Francisco Chana, Javier Vaquero] Background: Although the results of hip arthrodesis compare favorably with those of total hip arthroplasty (THA) in younger patients, long-term consequences such as osteoarthritis of the neighboring joints may necessitate conversion of the arthrodesis to THA. Questions/Purposes: The purpose of the present study is to assess mid-term clinical outcome and self-perceived improvement in patients who underwent conversion at our department. Secondary aims were incidence of complications and association between patient characteristics and characteristics of the fusions with the outcome of the procedure. Patients and Methods: The study sample comprised 21 cases in 20 patients. Minimum follow-up was 3years (mean, 8 ± 6.5years) in 20 cases. Thirteen patients had surgical hip fusions and 7 (8 hips) had nonsurgical fusions. Mean age at the time of conversion was 58.5years. Results: Nineteen out of 21 cases had functioning implants at the latest follow-up visit. According to the Merle d'Aubigné scale, outcome was considered excellent, very good, or good in 15 cases. Lower back pain was reduced in all patients. All but two patients were satisfied after the conversion. The main complications observed included incomplete removal of bone block, intra-operative fractures, dislocation and damage to the femoral artery. Time to conversion and type of fusion had no significant correlation with the clinical outcome. Conclusions: Conversion THA is a challenging but successful procedure according to the mid-term clinical outcome observed. Our study suggests that, prognostic factors should be used with caution when establishing indications and post-surgical expectations. Hospital for Special Surgery, 2013 hip arthrodesis nationallicence total hip arthroplasty nationallicence conversion nationallicence Villanueva Manuel Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut Sobrón Francisco Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut Parra Javier Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut Rojo Jose Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut Chana Francisco Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut Vaquero Javier Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut HSS Journal ® Springer US; http://www.springer-ny.com 9/2(2013-07-01), 138-144 1556-3316 9:2<138 2013 9 11420 https://doi.org/10.1007/s11420-013-9330-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11420-013-9330-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Villanueva Manuel Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 700 1- Sobrón Francisco Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 700 1- Parra Javier Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 700 1- Rojo Jose Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 700 1- Chana Francisco Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 700 1- Vaquero Javier Hospital General Universitario Gregorio Marañón, C/Doctor Esquerdo 46, 28007, Madrid, Spain aut NATIONALLICENCE 773 0- HSS Journal ® Springer US; http://www.springer-ny.com 9/2(2013-07-01), 138-144 1556-3316 9:2<138 2013 9 11420 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer