Author(s):
Arcângelo, J ; Guerra-Pinto, F ; Pinto, A ; Grenho, A ; Navarro, A ; Martin Oliva, X
Date: 2019
Persistent ID: http://hdl.handle.net/10400.17/3838
Origin: Repositório do Centro Hospitalar de Lisboa Central, EPE
Subject(s): HCC ORT; Ankle Joint / diagnostic imaging; Ankle Joint / surgery; Arthroplasty, Replacement, Ankle / adverse effects; Bone Cysts / diagnosis; Bone Cysts / etiology; Bone Cysts / surgery; Humans; Joint Prosthesis / adverse effects; Postoperative Complications; Tomography, X-Ray Computed
Description
Background: Periprosthetic cystic osteolysis is a well-known complication of total ankle replacement. Several theories have been proposed for its aetiology, based on individual biomechanical, radiological, histopathology and outcome studies. Methods: Studies that met predefined inclusion/exclusion criteria were analysed to identify literature describing the presence of peri-prosthetic ankle cystic osteolysis. Quantitative data from the selected articles were combined and statistically tested in order to analyse possible relations between ankle peri-prosthetic bone cysts and specific implant characteristics. Results: Twenty-one articles were elected, totalizing 2430 total ankle replacements, where 430 developed peri-prosthetic cystic osteolysis. A statistically significant association (P<.001) was found between the presence of bone cysts and non-anatomic implant configuration, hydroxyapatite-coating, mobile-bearing and non tibial-stemmed implants. No significant association existed between the type of constraining and the presence of cysts (P>.05). Conclusions: Non-anatomic, mobile-bearing, hydroxyapatite-coated and non tibial-stemmed total ankle replacements are positively associated with more periprosthetic bone cysts.
