Effect of 3D Printing Technology in Proximal Femoral Osteotomy in Children with Developmental Dysplasia of the Hip

Abstract

Objective. To investigate the effect and safety of 3D printing technology in proximal femoral osteotomy in children with developmental dysplasia of the hip. Methods. 40 cases of children with developmental dysplasia of the hip treated by pelvic osteotomy combined with proximal femoral osteotomy at Ningbo No. 6 Hospital from January 2017 to December 2019 were retrieved and retrospectively analyzed. Among them, 20 cases received preoperative measurement and design assisted by 3D printing technology (the 3D printing group), and 20 cases received conventional preoperative measurement and design (the conventional group). Results. All patients were followed up for an average of 25 (12~36) months. During the follow-up, there were no complications such as infection, fracture of internal fixation, or malunion of osteotomy. Compared with the conventional group, the 3D printing group had a shorter operation time, less intraoperative blood loss, and fewer intraoperative X-ray fluoroscopies (all p < 0.05 ). In the last follow-up, the clinical efficacy was evaluated by the McKay standard: in the 3D printing group, 14 cases were excellent, 5 cases were good, and 1 case was fair. In the conventional group, 10 cases were excellent, 9 cases were good, and 1 case was fair ( Z = − 0.382 , p > 0.05 ). Conclusion. Preoperative 3D printing of bilateral femur and other large physical models is accurate, which is ideal for the development of individual preoperative planning. Proximal femoral osteotomy using preoperative measurements and simulated surgical data improves the safety of the operation.

Feasibility Analysis of 3D Printing-Assisted Pedicle Screw Correction Surgery for Degenerative Scoliosis

“…Pedicle screw fixation is aided by 3D printing [ 14 ]. The three columns of the spine have a strong control force, and the internal fixation device is tightly mounted to the bone, thereby generating a strong correction force [ 15 , 16 ].…”

Clinical Applications of “In-Hospital” 3D Printing in Hip Surgery: A Systematic Narrative Review

“…Additionally, a decreased fluoroscopy time [24,[26][27][28]35,37] has been reported, pointing towards a potential reduction in radiation exposure for both patients and surgical teams. Surgical accuracy and precision [26,50,59] as well as safety [22,34] contribute to a more secure surgical environment. Three-dimensional printing technology has also led to increased patient satisfaction [57], as well as reduced bleeding [27,28,35,63] and overall costs [57,58].…”

“…Dysplasia [22] The 3D-printed model is used to measure the femoral neck anteversion angle. The simulation of the proximal femoral osteotomy is performed with the contralateral side as a reference to restore the correct angles.…”

“…Proximal femoral osteotomy in DDH [22] Retr. comparative 40 ( 20) China Triplanar osteotomy in slipped capital femoral epiphysis sequelae [24] Prosp.…”

Three-dimensional-printing-guided preoperative planning of upper and lower extremity pediatric orthopedic surgeries: A systematic review of surgical outcomes

“…Of the four prospective studies, three studies did not collect data on intraoperative blood loss, except the study assessing the use of 3D printing in TPFO for slipped capital femoral epiphysis, which did not denote any statistical significance (Senior group vs C vs T, 981.5 ± 534.4 vs 962.6 ± 276.1 vs 979.8 ± 316.2 mL, p = 0.3; see Table 2). 18 Five out of ten retrospective studies recorded intraoperative blood loss, 14,19,[24][25][26] and four of the five stated they found a statistically significant decrease in blood loss during 3D printing surgeries compared to control surgeries. 19,[24][25][26]…”