Superb microvascular imaging (SMI) detects increased vascularity of the torn anterior cruciate ligament.
Knee Surg Sports Traumatol Arthrosc
; 30(1): 93-101, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34121144
ABSTRACT
PURPOSE:
Ultrasound with superb microvascular imaging (SMI) is a novel microvascular imaging technology which may be useful to assess the vascularity of the torn anterior cruciate ligament (ACL) as a potential measure of healing potential following surgery. This study aimed to quantify the vascularity of the torn and intact ACL using ultrasound with SMI.METHODS:
23 patients (mean age ± standard deviation, 27.1 ± 12.8 years), who were diagnosed with an ACL tear with an intact contralateral ACL were enrolled (ACL injury group). Ten healthy volunteers (36.1 ± 4.9 years) who had intact ACLs in both knees were also recruited (ACL healthy controls). The vascularity of the ACL was assessed using SMI within 15 mm from the tibial insertion in both knees. The amount of the vascular signal was assessed using a semi-quantitative grading scale (vascularity grade grade 0-3) and a quantified ratio of vascularized area with respect to total area of the region of interest (vascularity ratio).RESULTS:
In the ACL injury group, a significantly higher vascularity grade and ratio were observed in the torn ACL (vascularity grade 0-3 1, 8, 7, and 7 patients, respectively; vascularity ratio 1.3 ± 1.4%) than the contralateral intact ACL (vascularity grade 0-3 21, 1, 1, and 0 patients, respectively; vascularity ratio 0.1 ± 0.5%) (P < 0.001), whereas no significant difference was observed between both ACLs in the ACL healthy control group.CONCLUSIONS:
SMI was useful to assess the increased vascularity in torn ACL, which may reflect the potential for, or state of, ACL maturation following reconstruction or repair. LEVEL OF EVIDENCE Level III.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Reconstrução do Ligamento Cruzado Anterior
/
Lesões do Ligamento Cruzado Anterior
Limite:
Humans
Idioma:
En
Revista:
Knee Surg Sports Traumatol Arthrosc
Assunto da revista:
MEDICINA ESPORTIVA
/
TRAUMATOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos