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Clinical and non-clinical aspects of distal radioulnar joint instability.

Wijffels M, Brink P, Schipper I - Open Orthop J (2012)

Bottom Line: MRI has proven to be more sensitive and specific for TFCC tears, potentially causing DRUJ instability.Symptomatic DRUJ injuries treatment can be conservative or operative.If not successful, salvage procedures can be performed to regain stability.

View Article: PubMed Central - PubMed

Affiliation: Leiden University Medical Center, Department of Surgery-Traumatology, P.O. Box 9600, 2300 RC Leiden, The Netherlands.

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 restoration of osseous and ligamenteous anatomy. If not successful, salvage procedures can be performed to regain stability.

No MeSH data available.


Related in: MedlinePlus

When load is applied to the hand (F) with a specificmoment ( L), the fixed fulcrum (E) is the DRUJ. Stability is definedas equality in forces, with their specific moments, working on afixed fulcrum. If the elbow is stable, the load between elbow andDRUJ (F’ x L’) will equal the load between the DRUJ and the hand(F x L) in a stable situation.
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Figure 5: When load is applied to the hand (F) with a specificmoment ( L), the fixed fulcrum (E) is the DRUJ. Stability is definedas equality in forces, with their specific moments, working on afixed fulcrum. If the elbow is stable, the load between elbow andDRUJ (F’ x L’) will equal the load between the DRUJ and the hand(F x L) in a stable situation.

Mentions: Stability is defined as equality of forces, with their specific moments, working on a fixed fulcrum. When load is applied on the hand, the fixed fulcrum is the DRUJ (Fig. 5).


Clinical and non-clinical aspects of distal radioulnar joint instability.

Wijffels M, Brink P, Schipper I - Open Orthop J (2012)

When load is applied to the hand (F) with a specificmoment ( L), the fixed fulcrum (E) is the DRUJ. Stability is definedas equality in forces, with their specific moments, working on afixed fulcrum. If the elbow is stable, the load between elbow andDRUJ (F’ x L’) will equal the load between the DRUJ and the hand(F x L) in a stable situation.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3367466&req=5

Figure 5: When load is applied to the hand (F) with a specificmoment ( L), the fixed fulcrum (E) is the DRUJ. Stability is definedas equality in forces, with their specific moments, working on afixed fulcrum. If the elbow is stable, the load between elbow andDRUJ (F’ x L’) will equal the load between the DRUJ and the hand(F x L) in a stable situation.
Mentions: Stability is defined as equality of forces, with their specific moments, working on a fixed fulcrum. When load is applied on the hand, the fixed fulcrum is the DRUJ (Fig. 5).

Bottom Line: MRI has proven to be more sensitive and specific for TFCC tears, potentially causing DRUJ instability.Symptomatic DRUJ injuries treatment can be conservative or operative.If not successful, salvage procedures can be performed to regain stability.

View Article: PubMed Central - PubMed

Affiliation: Leiden University Medical Center, Department of Surgery-Traumatology, P.O. Box 9600, 2300 RC Leiden, The Netherlands.

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 restoration of osseous and ligamenteous anatomy. If not successful, salvage procedures can be performed to regain stability.

No MeSH data available.


Related in: MedlinePlus