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CASE REPORT article
Front. Surg.
Sec. Orthopedic Surgery
Volume 12 - 2025 | doi: 10.3389/fsurg.2025.1526008
A novel injury mechanism of trans-styloid palmar-divergent dislocation of the lunate and scaphoid: A case report
Provisionally accepted- Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
Background: Palmar-divergent dislocation of the lunate and scaphoid is a rare high-energy trauma with complex injured mechanism. Early diagnosis and surgery are necessary, however, there is no consensus on surgical treatment, as only a few literatures have been reported. Case summary: A 56-year-old man, following a powerful strike to the dorsal side of left wrist and forearm, complained about swelling, tenderness, and limited motion of the left wrist during the physical examination. According to physical and imaging results, this patient was diagnosed with trans-styloid palmar-divergent dislocation of the lunate and scaphoid, as well as radial diaphysis fracture. We performed open reduction, internal fixation with K-wires, ligament reconstruction, and cast immobilization for 6 weeks, followed by early rehabilitation. Conclusion: We firstly described a novel injury mechanism of trans-styloid palmar-divergent dislocation of the lunate and scaphoid based on the classical Mayfield's mechanism, and reviewed suggestions regarding the optimal treatment of palmar-divergent dislocation of the lunate and scaphoid.
Keywords: Scapholunate dissociation, Palmar-divergent injury, scaphoid dislocation, Lunate dislocation, ORIF (open reduction and internal fixation)
Received: 11 Nov 2024; Accepted: 20 Mar 2025.
Copyright: © 2025 Wang, Qu, Kang, Cui, Wang, Li and Xu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Lin Xu, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
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