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PubMed

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In a prospective study, arthroscopic examinations were performed on 42 wrists following injury. Clinical findings, radiology, and arthrography were compared to the arthroscopic findings. Only obvious or total ligamentous ruptures found on arthroscopy were considered in the analysis. No direct correlation could be demonstrated with clinical findings or arthrography. The distribution pattern of ligament injury involving the radial and ulnar compartment of the wrist joint in 40% of the cases suggests that carpal dysfunction following injury and ligamentous tears is a more complex problem than usually accepted. The ulnar midcarpal joint seems more prone to injury than the radiocarpal portion of the wrist. This suggests an important biomechanical function of the palmar ligaments inserting on the triquetrum.