Fractures and luxations in the area of the carpal bones are in comparison with other fractures of the upper and lower extremities comparatively rare. Isolated fractures of luxations of the distal row of the carpal bones, by comparison with those of the proximal row, are still rarer incidents. Because of tight ligamentous unions between the carpal bones on the one hand and between the distal row of the carpal and the metacarpal bones on the other hand, a luxation or fracture is connected with a violent contusion or sprain. In the case of seriously or multiply injured persons the carpal injuries might be failed to be noticed. This may also occur in the case of insufficient auxiliary diagnostic measures. Crush-fractures as well as irreducible luxations should be immobilized by combination of adaptation-osteosynthesis and external fixation. An example is presented of an isolated fracture-dislocation of the trapezium after violent multiple trauma, with healing of the trapezium by adaptation-osteosynthesis and plaster immobilisatioi. The function was recovered after 10 weeks.
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Phys Med Biol
January 2025
Department of Trauma and Reconstructive Surgery, BG Hospital Bergmanntrost, Merseburger Straße 165 06112 Halle, Halle, Sachsen-Anhalt, 06112, GERMANY.
The purpose of this study was to develop a robust deep learning approach trained with a small in-vivo MRI dataset for multi-label segmentation of all eight carpal bones for therapy planning and wrist dynamic analysis. Approach: A small dataset of 15 3.0-T MRI scans from five health subjects was employed within this study.
View Article and Find Full Text PDFArch Orthop Trauma Surg
January 2025
BG Klinikum Unfallkrankenhaus Berlin, Department of Hand-, Replantation- and Microsurgery and Chair of Hand-, Replantation- and Microsurgery, Charité Universitätsmedizin Berlin, Berlin, Germany.
Introduction: Rhizarthrosis, or osteoarthritis of the trapeziometacarpal joint, predominantly affects women over 50, with up to 30% experiencing some degree of arthritis in this joint. Traditional surgical approaches, such as trapeziectomy with ligament reconstruction, can result in some patients in persistent pain or limited functionality. TMC ball-in-socket arthroplasty, with a cup placed in the distal scaphoid, offers a promising alternative to traditional arthrodesis or resection-suspension arthroplasty.
View Article and Find Full Text PDFCureus
December 2024
Orthopedic Department, Laiko General Hospital of Athens, Athens, GRC.
Carpometacarpal (CMC) joint fractures-dislocations are rare due to the complex structure of the carpal bones and strong ligamentous support; while the clinical image is usually "noisy," they present significant management challenges due to the unstable nature of the injury. These injuries are typically caused by high-energy trauma and frequently result in dorsal dislocations. Treatment requires a careful balance between the immobilization and surgical restoration of the anatomical alignment to prevent complications.
View Article and Find Full Text PDFDev Growth Differ
January 2025
Instituto de Bio y Geociencias del NOA (IBIGEO), CCT CONICET Salta-Jujuy, Rosario de Lerma, Argentina.
Despite the significant literature about morphological features of limb skeletons involved in tetrapod limb evolution, some questions about carpal and tarsal elements remain. In anurans, the ecomorphological and biomechanical approaches studied long hind limbs (to jump) and forelimbs (to land) and emphasized the role of the long bones in locomotion but disregarded what happens with the nodular elements of the carpus and tarsus. Here, we present a comparative study of nodular elements of the carpus and tarsus in anurans based on whole-mount specimens stained with Alcian Blue (cartilage) and Alizarin Red S (bone and calcified cartilage).
View Article and Find Full Text PDFJ Pediatr Orthop
February 2025
Orthopaedic Surgery and Sports Medicine, Akron Children's Hospital, Columbus, OH.
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