Assessment of x-ray efficacy for intraoperative microneedle retrieval using a cadaveric model.
Microsurgery
; 44(2): e31143, 2024 Feb.
Article
em En
| MEDLINE
| ID: mdl-38343010
ABSTRACT
INTRODUCTION:
Institutional protocols often mandate the use of x-rays when a microneedle is lost intraoperatively. Although x-rays can reliably show a macroneedle, the benefit of x-rays in detecting microneedles in human tissues has not been established as available data on this topic are investigated in anthropometric models. The current study aims to evaluate whether x-rays can reliably detect retained microneedles in a human cadaveric model. We hypothesize that microneedles would be detected at a significantly lower rate than macroneedles by x-ray in human tissues. MATERIALS ANDMETHODS:
Needles ranging from 4-0 to 10-0 were placed randomly throughout a cadaveric hand and foot. Each tissue sample was x-rayed using a Fexitron X-Ray machine, taking both anteroposterior and lateral views. A total of six x-ray images were then evaluated by 11 radiologists, independently. The radiologists circled over the area where they visualized a needle. The accuracy of detecting macroneedles (size 4-0 to 7-0) was compared with that of microneedles (size 8-0 to 10-0) using a chi-square test.RESULTS:
The overall detection rate for the microneedles was significantly lower than the detection rate for macroneedles (13.5% vs 88.8%, p < .01). When subcategorized between the hand and the foot, the detection rate for microneedles was also significantly lower than the rate for macroneedles (hand 7.6% for microneedles, 93.2% for macroneedles, p < .01; foot 19.5% for microneedles, 84.4% for macroneedles, p < .01). The detection rate, in general, significantly decreased as the sizes of needles became smaller (7-070.5%, 8-018.2%, 9-016.7%, 10-02.3%, p < .01).CONCLUSION:
X-rays, while useful in detecting macroneedles, had a significantly lower rate of detecting microneedles in a cadaveric model. The routine use of x-rays for a lost microneedle may not be beneficial. Further investigation with fresh tissue and similar intraoperative x-ray systems is warranted to corroborate and support these findings.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sistemas de Liberação de Medicamentos
/
Agulhas
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Microsurgery
Ano de publicação:
2024
Tipo de documento:
Article