Infected hip hemiarthroplasties and total hip arthroplasties: Differential findings and prognosis Jaime Lora-Tamayo a, *, Gorane Euba a , Alba Ribera a , Oscar Murillo a , Salvador Pedrero b , Dolors Garcı ´a-Somoza c , Miquel Pujol a , Xavier Cabo b , J. Ariza a a Department of Infectious Diseases, Hospital Universitario de Bellvitge, Universidad de Barcelona, Barcelona, Spain b Department of Traumatology, Hospital Universitario de Bellvitge, Universidad de Barcelona, Barcelona, Spain c Department of Microbiology, Hospital Universitario de Bellvitge, Universidad de Barcelona, Barcelona, Spain Accepted 31 July 2013 Available online --- KEYWORDS Prosthetic joint infection; Total hip arthroplasty; Hip hemiartrhoplasty; Cemented hemiarthroplasty; Non-cemented hemiartroplasty; Debridement antibiotics and implant retention (DAIR); Bone and joint infection Summary Objectives: Infected hip hemiarthroplasties (HHA) are classically analyzed along with infected total hip arthroplasties (THA), but patients with either one or other device are different. We describe the clinical presentation, etiology and prognosis of infected HHA compared with infected THA. Methods: Comparative study of patients with infected HHA and THA from a prospective data- base of prosthetic joint infection (PJI) cases in our hospital (2003e2011), focusing on patients managed with debridement, antibiotics and implant retention (DAIR). Results: 210 episodes of hip-PJI (age 74 years, 63% women): 62 (39%) HHA and 148 (61%) THA. HHA-patients were older and had more comorbidities. Late-chronic and hematogenous infec- tions were more frequent in THA. 123 (59%) patients were managed with DAIR: 72 THA and 51 HHA. Staphylococcus aureus was more frequent in THA (44% vs 26%, p Z 0.032), while Gram- negative bacilli were more prevalent in HHA (73% vs 51%, p Z 0.018), with a higher prevalence of fluoroquinolone-resistance in cemented-HHA. Overall failure was 37%, with no significant differences among groups. A higher mortality was observed in HHA cases (21% vs 4%, p Z 0.005), particularly in cemented-HHA. * Corresponding author. Servicio de Enfermedades Infecciosas, Hospital Universitario de Bellvitge, c/ Feixa Llarga s/n, L’Hospitalet de Llobregat, 08907 Barcelona, Spain. Tel.: þ34 93 260 2487; fax: þ34 93 260 7637. E-mail addresses: jaime@lora-tamayo.es, sirsilverdelea@yahoo.com (J. Lora-Tamayo). 0163-4453/$36 ª 2013 The British Infection Association. Published by Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.jinf.2013.07.030 www.elsevierhealth.com/journals/jinf Journal of Infection (2013) xx,1e9 Please cite this article in press as: Lora-Tamayo J, et al., Infected hip hemiarthroplasties and total hip arthroplasties: Differential findings and prognosis, J Infect (2013), http://dx.doi.org/10.1016/j.jinf.2013.07.030