Quantitative Assessment of Distal Radioulnar Joint Stability With Pressure-Monitor Ultrasonography

Tokyo Medical University

Status: Invitation-only

Conditions: Distal Radioulnar Joint Sprain; Triangular Fibrocartilage Complex Injury

Treatments: Device: pressure monitor ultrasound system

Study type: Interventional

Funder types: Other

Identifiers

NCT03658096

17-26

Details and patient eligibility

About

To quantitatively assess distal radio ulnar joint (DRUJ) stability, a pressure-monitor ultrasound system was developed. The objective of this study was to evaluate the force-displacement relationship of DRUJ in patients and normal subjects. Each subject will be imaged sitting with elbow flexed and forearm pronated. The dorsal surface of distal radius and the center of ulnar head will be displayed at DRUJ level. The pressure toward palmar direction will be applied to distal ulna with different levels of transducer displacements, i.e. 1 mm, 2 mm, and 3 mm. The distance between the dorsal surface of the ulnar head and the dorsal surface of the distal radius will be measured. At the same time, the pressure to the transducer will be measured.

Enrollment: 60 estimated patients

Sex: All

Ages: 20+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• healthy volunteers
• DRUJ instability patients

Exclusion criteria

• the participants who had a history of previous wrist trauma and wrist pain will be excluded

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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60 participants in 2 patient groups

Healthy volunteer

Active Comparator group

Treatment:

Device: pressure monitor ultrasound system

DRUJ instability patients

Active Comparator group

Treatment:

Device: pressure monitor ultrasound system