Hydrogel Coating to Reduce Post-surgical Infection After Joint Arthroplasty

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorMedacta International SA

About this trial

The goal of this randomized, controlled, monocentric, single-blind, 2-arm, feasibility clinical investigation is to evaluate the safety of MectaShield hydrogel coating and to capture its preliminary clinical performance in the prevention of early peri-prosthetic joint infection (PJI) in patients undergoing cementless revision hip arthroplasty.

The main questions it aims to answer are:

* demonstrate that the hydrogel coating MectaShield does not interfere with primary stability; * evaluate clinical and functional outcomes, the rate of PJI and possible adverse events.

Participants will undergo cementless revision hip arthroplasty; during surgery MectaShield hydrogel coating is applied on orthopaedic implants' surfaces (femoral stem and, if revised, acetabular cup) as a protective barrier for the prevention of bacterial adhesion. Surgery and follow-up are completed as per local standard practice. Stability will be assessed radiologically, while functional outcomes and PJI will be monitored by HOOS-PS, ASESPIS scores and according to the consensus document presented by European Society of Radiology (ESRa), the European Association of Nuclear Medicine (EANM), the European Bone and Joint Infection Society (EBJIS), and the European Society of Clinical Microbiology and Infectious Diseases (ESCMID). Researchers will compare the results of the treatment group with those from a control group receiving cementless revision hip arthroplasty without the application of MectaShiled hydrogel coating.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

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

Disqualifiers

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

Trial design

Design model

Parallel

Treatments tested in this trial

  • Hydrogel coating

    Device

    hydrogel coating applied to implant's surfaces during cementless hip revision arthroplasty

  • Control

    Procedure/Surgery

    standard cementless hip revision arthroplasty

Treatment groups

56 Participants
are divided into 2 treatment groups
Group A: Hydrogel coatingExperimental treatment 1 intervention
Group B: ControlSham comparator 1 intervention

Trial outcomes

Primary outcomes

1

Stem subsidence

Radiological measurements of stem subsidence (mm) will be performed in hydrogel coating and control groups, and mean subsidence will be compared

Time frame
3 months follow up

Secondary outcomes

1

Stem subsidence

Radiological measurements of stem subsidence (mm) will be performed in hydrogel coating and control groups, and mean subsidence will be compared.

Time frame
12 months follow up
2

Presence of radiolucent zones in the femur

Presence of radiolucent lines (≥1 mm) in the 7 Gruen zones will be assessed by radiologic assessment.

Time frame
3 and 12 months follow up
3

Cup migration (if revised)

Radiological measurements will be performed on the Acetabular cup (if revised) to measure cup migration.

Time frame
3 and 12 months follow up
4

Cup orientation (if revised)

Radiological measurements will be performed on the Acetabular cup (if revised) to measure cup tilt.

Time frame
3 and 12 months follow up

Other outcomes

Sponsors and contacts

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