The wrist is disposed to a variety of instability patterns owing to its complex anatomical and biomechanical properties. Various classification schemes have been proposed to describe the different patterns of carpal instability, of which the Mayo classification is the most commonly used. Understanding the concepts and pertinent terminology of this classification scheme is important for the correct interpretation of images and optimal communication with referring physicians. Standard wrist radiographs are the first line of imaging in carpal instability. Additional information may be obtained with the use of stress radiographs and other imaging modalities.
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http://dx.doi.org/10.1007/s00256-016-2390-y | DOI Listing |
Introduction: wrist ligament injuries and triangular fibrocartilage complex (TFCC) lesions are common but often underdiagnosed conditions causing chronic wrist pain. The diagnostic challenge necessitates a combination of clinical examination, imaging studies, and arthroscopy, considered the gold standard. Ligament injuries, particularly scapholunate ligament (SL), and TFCC lesions account for significant wrist instability and ulnar-sided wrist pain, respectively.
View Article and Find Full Text PDFJ Hand Surg Eur Vol
January 2025
Department of Radiology, University Hospital, LMU Munich, Munich, Germany.
Articular malalignment and ulnocarpal impaction can progress to osteoarthritis in the wrist. This may be triggered by tears of the scapholunate ligament (rarely the lunotriquetral ligament) or the foveal lamina of the triangular fibrocartilage complex. In the pre-degenerative stages, radiographic findings are inconclusive, and symptoms may be absent or discrete.
View Article and Find Full Text PDFArch Orthop Trauma Surg
January 2025
Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Unfallklinik Tuebingen, Eberhard Karls University Tuebingen, Tübingen, Germany.
Introduction: Perilunate dislocations (PLD) and perilunate fracture-dislocations (PLFD) are high-energy wrist injuries often linked to significant post-traumatic osteoarthritis. This study aims to determine whether PLD and PLFD yield different radiological outcomes following surgical treatment while identifying prognostic factors for worse outcomes.
Materials And Methods: We retrospectively analyzed 51 patients treated for perilunate injuries between 2000 and 2022.
Sci Rep
December 2024
Department of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, South Korea.
The unique saddle articulation of the trapeziometacarpal joint allows for a wide range of motion necessary for routine function of the thumb. Inherently unstable characteristics of the joint can lead painful instability. In this study, we modified a surgical dorsal ligament reconstruction technique for restoring trapeziometacarpal joint stability.
View Article and Find Full Text PDFJ Hand Surg Glob Online
November 2024
Department of Orthopedic Surgery, Crystal Clinic, Akron, OH.
This surgical technique article describes the anatomic C scapholunate reconstruction technique. It is indicated for complete acute or chronic scapholunate ligament dissociation. The technique addresses severe scapholunate interval gapping, ulnar translocation of the lunate, and rotational/dorsal intercalated segment instability.
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