The First-Stage Treatment Аlgorithm for Deep Infected Total Hip Arthroplasty

Abstract

Background. Periprosthetic infection after total hip arthroplasty is a relatively common and severe complication. A two-stage revision with the temporary use of a spacer is the gold standard treatment for the deep infected total hip arthroplasty. Some authors report mechanical complications associated with spacers, which can lead to a poor functional outcome. Therefore, the aim of the study was to analyze the effectiveness of the first-stage of treatment of hip PJI with a two-stage method and to develop an spacer application algorithm in order to achieve the optimal functional result.Material and Methods. Between 2015 and 2017, 38 patients with deep periprosthetic infection received an articulation spacer as part of a two-stage protocol in Botkin Moscow City Hospital. The mean age was 60.5 (interquartile range from 5 2 to 69) years. Five different types of spacers were us ed in the study, selected individually according to theW. Paprosky acetabular defects classification. The overall frequency of complications was evaluated.Results. The overall periprosthetic infection treatment effectiveness was 92.1%. There was the recurrent infection in 3 patients (7.9%), in 2 (5.26%) cases microbial associations were founded. Mechanical complications occurred in 8 (21%) patients. Spacer dislocation occurred in 4 (10.4%) cases, spacer fracture in another 2 (5.2%). There were also 2 cases of protrusion into the pelvis (5.2%).Conclusions. The first stage a two-stage revision hip arthroplasty should be carefully plarmed. To choose the appropriate spacer we proposed an algorithm based on our data to achieve a better functional result.

Keywords

• hip revision hip arthroplasty
• prosthetic joint infection
• spacer
• a two-stage revision