Core Viewpoint - The article highlights a groundbreaking surgical procedure at Qilu Hospital in Dezhou, where a 3D-printed pelvic implant was successfully used to replace a malignant tumor-affected half of a patient's pelvis, showcasing advancements in personalized medical technology and surgical techniques [1][2]. Group 1: Surgical Procedure - The patient, Mr. Wang, was diagnosed with a malignant pelvic tumor, which is known for its rapid progression and high disability and mortality rates [1]. - Traditional treatment methods often involve extensive surgical removal, leading to loss of mobility; however, the "pelvic tumor resection combined with 3D-printed personalized prosthesis replacement" technique offers a limb-sparing option [1]. - The surgical team collaborated closely with engineers from a 3D printing company to create a custom pelvic implant based on the patient's CT imaging, ensuring a precise fit [2]. Group 2: Surgical Execution - The surgery, initially expected to take 7 hours, was completed in just over 5 hours due to thorough preoperative preparation and teamwork [3]. - The surgical process involved careful dissection of muscles and surrounding nerves and blood vessels, with a focus on minimizing risks of complications such as excessive bleeding or nerve damage [2]. - Post-surgery, the patient is expected to regain mobility within 2 to 3 months through rehabilitation, providing hope for a return to normal life [3]. Group 3: Institutional Context - Qilu Hospital in Dezhou is the only specialized bone tumor department in the region, filling a significant gap in comprehensive treatment for bone tumors [3]. - The department is led by renowned experts in bone and soft tissue tumors, offering advanced diagnostic and therapeutic services to patients [3].