ArticleJournal of wrist surgery2026
Three-Dimensional Planning and Patient-Specific Instruments in Complex Forearm Malunion.
Article in Journal of wrist surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Background: Forearm malunion resulting from traumatic injuries can lead to reduced pronosupination and instability of the distal radioulnar joint (DRUJ). While children benefit from natural bone remodeling, surgical intervention is more frequently required in adults. When surgical treatment is necessary, corrective osteotomies aim to restore functionality and alleviate pain. However, in cases of complex multiplanar deformities, surgical planning can be technically challenging. Moreover, there is a lack of literature addressing the management of DRUJ instability in these cases. Case Description: We present the case of a 52-year-old patient with severe malunions of both forearm bones, characterized by a 10-degree pronation and 5-degree supination, along with chronic DRUJ instability. The patient reported difficulty with daily activities due to limited forearm rotation, pain, and persistent joint instability. The patient underwent corrective surgery, utilizing three-dimensional (3D) planning and patient-specific instruments (PSI) to perform precise osteotomies on both the radius and ulnar shafts. In addition, DRUJ instability was managed conservatively using a 6-week treatment protocol involving bracing and physical therapy, which successfully stabilized the joint. Postoperative assessments at 13 months showed significant improvements, including the absence of pain, increased pronosupination range, and successful bone union, as confirmed by radiographic evaluation. Literature Review: The role of 3D planning and PSI in orthopaedic surgery has been well-documented, particularly in the management of forearm malunions in pediatric patients and complex malunions of distal radius fractures in adults. Evidence suggests that these technologies improve both surgical and radiographic precision, reduce complications, and enhance long-term outcomes. Clinical Relevance: This case contributes to the existing body of literature by demonstrating how these tools can be successfully applied to complex both forearm bones malunions with concurrent DRUJ instability in an adult patient.
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