Clinical Report: Patient-Specific Plates Improve Outcomes in Distal Radius Malunion
Overview
This case series evaluated the use of patient-specific plates (PSP) for corrective osteotomy in distal radius malunion. The study demonstrated improved anatomical alignment and promising clinical, functional, and radiological outcomes using 3D preoperative planning and custom titanium plates.
Background
Distal radius fractures can lead to symptomatic malunion, causing pain and functional impairment in approximately 5% of patients. Corrective osteotomy aims to restore anatomical alignment but is often limited by the fit of conventional plates, which may require subjective bending. Advances in 3D imaging and printing have enabled patient-specific plates that conform precisely to bone contours, potentially improving surgical accuracy and outcomes. This approach uses CT-based 3D modeling for preoperative planning and custom guides and plates for intraoperative navigation and stabilization.
Data Highlights
Parameter
Details
Patient Number
10
Age Inclusion
>16 years
Imaging Modality
CT scans of affected and contralateral forearms
CT Scanner
Brilliance 64-channel, Philips Healthcare
Voxel Spacing
0.45 mm isotropic
Follow-up
~6 weeks and 6 months post-op
Material of Plates
3D titanium printed
Key Findings
Patient-specific plates designed from 3D CT models allowed precise preoperative planning and intraoperative transfer of corrective osteotomy plans.
Use of mirrored contralateral radius as a reference enabled accurate assessment and correction of malalignment in three dimensions.
Custom drilling and cutting guides facilitated accurate osteotomy and screw placement according to the preoperative plan.
PSP fit the patient’s bone contour optimally, reducing the need for intraoperative plate bending and potentially lowering risk of tendon complications.
Postoperative CT evaluations at 6 weeks and 6 months confirmed improved anatomical alignment and bone consolidation.
Ethical approval and informed consent were obtained, ensuring compliance with clinical research standards.
Clinical Implications
The use of patient-specific plates in distal radius malunion allows for improved anatomical restoration by leveraging 3D imaging and custom implant design. This approach may reduce complications associated with plate misfit and subjective bending, potentially enhancing functional recovery and decreasing the need for secondary surgeries. Incorporating 3D planning and PSP technology could represent a significant advancement in corrective osteotomy procedures.
Conclusion
Patient-specific plates designed through 3D preoperative planning demonstrate promising results in improving anatomical alignment and clinical outcomes in distal radius malunion. This technique offers a precise and reproducible method for corrective osteotomy that may improve patient care.
References
van de Pol et al. 2020 -- Customized Plates for Navigation and Stabilization in Distal Radius Fractures: A Case Series Analysis
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