Material-Intrinsic NIR-Fluorescence Enables Image-Guided Surgery for Ceramic Fracture Removal

© 2024 The Authors. Advanced Healthcare Materials published by Wiley‐VCH GmbH..

Hip arthroplasty effectively treats advanced osteoarthritis and is therefore entitled as "operation of the 20th century." With demographic shifts, the USA alone is projected to perform up to 850 000 arthroplasties annually by 2030. Many implants now feature a ceramic head, valued for strength and wear resistance. Nonetheless, a fraction, up to 0.03% may fracture during their lifespan, demanding complex removal procedures. To address this, a radiation-free, fluorescence-based image-guided surgical technique is presented. The method uses the inherent fluorescence of ceramic implant materials, demonstrated through chemical and optical analysis of prevalent implant types. Specifically, Biolox delta implants exhibited strong fluorescence around 700 nm with a 74% photoluminescence quantum yield. Emission tails are identified extending into the near-infrared (NIR-I) biological transparency range, forming a vital prerequisite for the label-free visualization of fragments. This ruby-like fluorescence could be attributed to Cr within the zirconia-toughened alumina matrix, enabling the detection of even deep-seated millimeter-sized fragments via camera-assisted techniques. Additionally, fluorescence microscopy allowed detection of µm-sized ceramic particles, enabling debris visualization in synovial fluid as well as histological samples. This label-free optical imaging approach employs readily accessible equipment and can seamlessly transition to clinical settings without significant regulatory barriers, thereby enhancing the safety, efficiency, and minimally invasive nature of fractured ceramic implant removal procedures.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Advanced healthcare materials - 13(2024), 10 vom: 20. Apr., Seite e2302950

Sprache:

Englisch

Beteiligte Personen:

Nißler, Robert [VerfasserIn]
Totter, Elena [VerfasserIn]
Walter, Sebastian G [VerfasserIn]
Metternich, Justus T [VerfasserIn]
Cipolato, Oscar [VerfasserIn]
Nowack, Dimitri [VerfasserIn]
Gogos, Alexander [VerfasserIn]
Herrmann, Inge K [VerfasserIn]

Links:

Volltext

Themen:

Al2O3
Bioimaging
C6V6S92N3C
Ceramic implant
Journal Article
Luminescent ceramics
NIR fluorescence
Ruby, zirconia‐toughened alumina
ZTA
Zirconium

Anmerkungen:

Date Completed 18.04.2024

Date Revised 18.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/adhm.202302950

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367363135