Recently, the Hospital of Integrated Traditional Chinese and Western Medicine of Southern Medical University used 3D printing technology to assist a patient with left traumatic femoral head necrosis to successfully perform left total hip arthroplasty, relieving the patient’s pain for more than 20 years and helping him to return to normal walking.Twenty-six years ago, zou Ai (not her real name) suffered multiple injuries, including pelvic acetabular comminuted fracture, bladder rupture, and small intestine rupture.In addition to the scars, the accident also resulted in severe necrosis of the femoral head.
For more than 20 years, Zou suffered from necrosis of her femoral head.For many years, she went to three first-class hospitals to seek medical treatment.”When the pain becomes unbearable, I give myself an anti-inflammatory injection to relieve the pain.” When the pain worsens and it is difficult to walk or sleep, Zou gives herself an injection to relieve the pain.In the past two years, Zou was unable to walk because of the aggravation of pain. Finally, she was introduced to Huang Gang, director of the department of orthopedics and traumatology of the Hospital of Integrated Traditional Chinese and Western Medicine of Southern Medical University.
After aunt Zou came to the hospital, X-ray and CT examination showed that the left femoral head was necrotic and abnormal in morphology, which had been separated from the normal position, and it was difficult to find the true acetabulum, abnormal in morphology and partial bone loss in the left acetabulum.To completely solve Zou’s problem, a left total hip replacement is needed.However, Aunt Zou had been ill for more than 20 years and had a history of failed operation. The difficulty factor of the operation was large, and there could be no deviation.
Director Huang Gang organized many discussions in the department and timely communicated with patients and their families. He decided to rely on advanced 3D printing technology to carry out preoperative planning for patients, accurately locate the mortar, and tailor precise surgical treatment plans.
Director Huang Gang first performed A CT scan for Aunt Zou, transmitted the CT scan data of both hip joints to a 3D printer, and “printed” an identical hip joint model in a 1:1 ratio.The model perfectly presents Zou’s necrotic joints and the degree of dislocation and other details.
With the aid of the model, can huang, director of the “intuitive” zou aunt three dimensional structure of bone lesions, in addition to help develop a detailed operation plan, also can use model for preoperative bone cutting simulation, fixed, rehearsal ahead of the whole operation process, predict complex operation of all kinds of problems that may occur in the process, so as to improve the accuracy rate of the operation, and shorten the operation time significantly, more reduce the surgical risk and reduce complications.
The operation lasted for more than 2 hours with 200ML bleeding. The left total hip arthroplasty was successfully performed for Aunt Zou, and the artificial hip joint was accurately installed in aunt Zou’s mortar and firmly fixed.Four days after the operation, Aunt Zou was already walking on the ground.
According to Huang Gang director, using 3 d printing “personalized” computer assisted surgery treatment is the use of CT image, computer 3 d reconstruction and rapid prototyping to build bone anatomical model and three-dimensional operation design simulation technology, the preoperative Angle of view more, make bone anatomy can complete, more intuitive, three-dimensional display, so as to accurately assess fracture, defects, etc., understand local anatomical structure of “personality”.
It is reported, this technique for the diagnosis of the disease, the choice of methods such as classification, fixed, provide sufficient, intuitive basis, provide clinicians with more intuitive and comprehensive preoperative planning and operation simulation, the greatest degree enhance the ability of handling difficult complex surgery, reduce the number of patients with surgical risk, is accurate for precise surgery.