Clinical and Non-Clinical Aspects of Distal Radioulnar Joint Instability

MME Wijffels, PRG Brink, IB Schipper

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Abstract

Untreated distal radioulnar joint (DRUJ) injuries can give rise to long lasting complaints. Although common,
diagnosis and treatment of DRUJ injuries remains a challenge. The articulating anatomy of the distal radius and ulna,
among others, enables an extensive range of forearm pronosupination movements. Stabilization of this joint is provided
by both intrinsic and extrinsic stabilizers and the joint capsule. These structures transmit the load and prevent the DRUJ
from luxation during movement. Several clinical tests have been suggested to determine static or dynamic DRUJ stability,
but their predictive value is unclear. Radiologic evaluation of DRUJ instability begins with conventional radiographs in
anterioposterior and true lateral view. If not conclusive, CT-scan seems to be the best additional modality to evaluate the
osseous structures. MRI has proven to be more sensitive and specific for TFCC tears, potentially causing DRUJ
instability. DRUJ instability may remain asymptomatic. Symptomatic DRUJ injuries treatment can be conservative or
operative. Operative treatment should consist of restorat
Original languageUndefined/Unknown
Number of pages7
JournalOpen Orthopaedics Journal
DOIs
Publication statusPublished - 30 May 2012

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