3D Printing Guide Plate for Accurate Hemicortical Bone Resection in Low-Grade Bone Sarcoma

Abstract

Background: Surgical resection and reconstruction for low grade bone sarcoma in the metaphysis of the long bone remains challenging. We hypothesize that 3D printing osteotomy guide plate could assist to accurately resect the tumor lesion and save the joint function without higher recurrence rate. Methods: From January 2017 to August 2019, ten patients with low-grade malignant bone tumor in metaphysis of the limbs were treated with hemicortical resection using 3D printing guide plate and biological reconstruction. Results: Four patients were paracorticular osteosarcoma, five cases had highly differentiated chondrosarcoma, and one case was a chondromyxoid fibroma. Two of the cases involved the proximal humerus, while eight cases involved the distal femur. There was neither post-operation infection, internal fixation loosening, nor fracture occurrence in any of the patients. The Musculoskeletal Tumor Society score averaged at 27.1, while the International Society of Limb Salvage imaging score examination averaged 87.8%. Conclusions: Here, we demonstrate that the 3D printing osteotomy guide plate assisted hemicortical bone resection is a beneficial strategy to effectively resect the primary low-grade malignant bone tumors in the metaphysis of long bone and restore excellent joint function.