CONTROLLED LASER-ABLATION OF POLYMETHYL METHACRYLATE BONE-CEMENT

KF GIBSON, George Kernohan, I DUNCAN, WA MONTGOMERY, RAB MOLLAN

Research output: Contribution to journalArticle

Abstract

The increasing numbers of re-operations carried out on total hip replacement patients causes considerable difficulty for orthopaedic surgeons. One particular problem lies in the removal of the bone cement inserted during the primary operation without causing damage to the bone. In order to develop a method for differentiating between polymethyl methacrylate (PMMA) bone cement and bone during laser ablation, the laser-induced fluorescence from PMMA. has been studied and compared to that from the bone. An Oriel multispec spectrometer was used to analyse and record the radiation emitted during 248-nm excimer laser ablation. There was high-intensity fluorescence from bone relative to that from PMMA and several peaks occurred in the spectrum of bone which were absent from that of PMMA. Monitoring of this emission has enabled controlled laser ablation of bone cement in contact with bone to be achieved in vitro with no damage to the naked eye.
LanguageEnglish
Pages133-136
JournalLasers in Medical Science
Volume9
Issue number2
DOIs
Publication statusPublished - Jun 1994

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Bone Cements
Laser Therapy
Polymethyl Methacrylate
Bone and Bones
Fluorescence
Excimer Lasers
Hip Replacement Arthroplasties
Lasers
Radiation

Cite this

GIBSON, KF., Kernohan, G., DUNCAN, I., MONTGOMERY, WA., & MOLLAN, RAB. (1994). CONTROLLED LASER-ABLATION OF POLYMETHYL METHACRYLATE BONE-CEMENT. 9(2), 133-136. https://doi.org/10.1007/BF02590362
GIBSON, KF ; Kernohan, George ; DUNCAN, I ; MONTGOMERY, WA ; MOLLAN, RAB. / CONTROLLED LASER-ABLATION OF POLYMETHYL METHACRYLATE BONE-CEMENT. 1994 ; Vol. 9, No. 2. pp. 133-136.
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GIBSON, KF, Kernohan, G, DUNCAN, I, MONTGOMERY, WA & MOLLAN, RAB 1994, 'CONTROLLED LASER-ABLATION OF POLYMETHYL METHACRYLATE BONE-CEMENT', vol. 9, no. 2, pp. 133-136. https://doi.org/10.1007/BF02590362

CONTROLLED LASER-ABLATION OF POLYMETHYL METHACRYLATE BONE-CEMENT. / GIBSON, KF; Kernohan, George; DUNCAN, I; MONTGOMERY, WA; MOLLAN, RAB.

Vol. 9, No. 2, 06.1994, p. 133-136.

Research output: Contribution to journalArticle

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AB - The increasing numbers of re-operations carried out on total hip replacement patients causes considerable difficulty for orthopaedic surgeons. One particular problem lies in the removal of the bone cement inserted during the primary operation without causing damage to the bone. In order to develop a method for differentiating between polymethyl methacrylate (PMMA) bone cement and bone during laser ablation, the laser-induced fluorescence from PMMA. has been studied and compared to that from the bone. An Oriel multispec spectrometer was used to analyse and record the radiation emitted during 248-nm excimer laser ablation. There was high-intensity fluorescence from bone relative to that from PMMA and several peaks occurred in the spectrum of bone which were absent from that of PMMA. Monitoring of this emission has enabled controlled laser ablation of bone cement in contact with bone to be achieved in vitro with no damage to the naked eye.

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