Correlation Between Sonographic and In Vivo Measurement of A1 Pulleys in Trigger Fingers

Spirig, Andres; Juon, Bettina; Banz Wälti, Yara; Rieben, Robert; Vögelin, Esther (2016). Correlation Between Sonographic and In Vivo Measurement of A1 Pulleys in Trigger Fingers. Ultrasound in medicine & biology, 42(7), pp. 1482-1490. Elsevier 10.1016/j.ultrasmedbio.2016.02.017

Full text not available from this repository. (Request a copy)

The thickness of 210 A1 pulleys of 21 male and female healthy volunteers in two different age groups (20-35 y and 50-70 y) were measured by ultrasound. In a second group, the thickness of 15 diseased A1 pulleys and 15 A1 pulleys of the corresponding other hand of 10 patients with the clinical diagnosis of trigger finger were measured by ultrasound. During open trigger finger release, a strip of A1 pulley was excised and immediately measured using an electronic caliper. The average pulley thickness of healthy volunteers was 0.43-0.47 mm, compared to 0.77-0.79 mm in patients with trigger finger. Based on the receiver operating characteristic (ROC) curve, a diagnostic cut-off value of the pulley thickness at 0.62 mm was defined in order to differ a trigger finger from a healthy finger (sensitivity and specificity of 85%). The correlation between sonographic and effective intra-operative measurements of pulley thickness was linear and very strong (Pearson coefficient 0.86-0.90). In order to distinguish between healthy and diseased A1 pulleys, 0.62 mm is a simple value to use, which can be applied regardless of age, sex, body mass index (BMI) and height in adults.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Plastic and Hand Surgery > Hand Surgery
04 Faculty of Medicine > Other Institutions > Teaching Staff, Faculty of Medicine
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Plastic and Hand Surgery
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Mu50 > Forschungsgruppe Herz und Gefässe
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Mu50 > Forschungsgruppe Handchirurgie

UniBE Contributor:

Juon, Bettina; Banz Wälti, Yara; Rieben, Robert and Vögelin, Esther

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0301-5629

Publisher:

Elsevier

Language:

English

Submitter:

Veronika Picha

Date Deposited:

13 Jul 2016 08:01

Last Modified:

20 Feb 2019 09:11

Publisher DOI:

10.1016/j.ultrasmedbio.2016.02.017

PubMed ID:

27126241

Uncontrolled Keywords:

A1 pulley; Sonographic measurement; Stenosing tenosynovitis; Trigger finger

URI:

https://boris.unibe.ch/id/eprint/82652

Actions (login required)

Edit item Edit item
Provide Feedback