Hydrogel Coating to Reduce Post-surgical Infection After Joint Arthroplasty

Inclusion Criteria: * Informed Consent signed by the subject * Males and females aged over 18 years at time of surgery * Subjects who are scheduled to receive a conical collarless cementless revision hip arthroplasty, with or without revision of the acetabular cup * Subjects willing to comply with the pre- and post-operative evaluation schedule Exclusion Criteria: * Subjects with one or more medical conditions identified as a contraindication defined by the labelling on any implants used in this study * Subjects with immune suppressive treatment for organ transplantation, or known allergy to MectaShield hydrogel constituents (Chitlac, Mannitol, Hydroxypropylmethylcellulose, Sodium phosphate dibasic) * Subjects presenting with progressive local or systemic infection at the time of surgery * Subjects whose prospects for a recovery to independent mobility would be compromised by known coexistent, medical problems * Subjects affected by concomitant spine, hip, ankle or contralateral knee pathologies that can affect walking capacity * Subjects unable to understand and take action * Subjects undergoing cementless revision hip arthroplasty in emergency interventions